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Race Calendar

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October 2025

Date Event Distance Location Description
10/08/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5K (ish) route through the Marina neighborhood and the Presidio.
10/10/2025 Mile Madness Endurance Run 72H, 48H, 24H, 100M, 12H, 6H Rocklin, CA The course is 1.05 miles in length, meaning you will need to run 96 laps to get your 100-Mile buckle.
10/11/2025 Bizz Johnson 50K, 26.2M, 13.1M, 10K Susanville, CA The Bizz Johnson Trail Marathon and 50K distances begin at Mason Station with an out and back on McCoy Road.
10/11/2025 Byxbee Parkrun 5K Palo Alto, CA A free, fun, and friendly weekly 5k community event. Walk, jog, run, volunteer or spectate – it's up to you!
10/11/2025 Granite Head Trails & Ales 11.2M, 6.6M Granite Bay, CA Granite Head is definitely the cure for what ales you!
10/11/2025 Look Good Feel Good Race 26.2M, 13.1M, 10K, 5K San Leandro, CA Fasten your running/walking shoes and experience an adventurous run along the San Francisco east bay shoreline.
10/11/2025 Mt. Umunhum Trail Conquest 50K, 26.2M, 13.1M, 5K San Jose, CA This race starts at the Hacienda Entrance of Almaden Quicksilver Park.
10/11/2025 Ruth Anderson Memorial Endurance Run 100K, 50M, 50K San Francisco, CA Race HQ (bib#s, Start) : Lake Merced Blvd. & Sunset Blvd., San Francisco, CA.
10/11/2025 Wicked Wine Run 5K American Canyon, CA Join the Wicked Wine Run for a fun-filled day of running or walking through the scenic vines, followed by wine, music, and friends!
10/12/2025 Cindy's Race 10K/6K 10K, 6K, 1K Santa Rosa, CA 1 in 8 women will be diagnosed with breast cancer in their lifetime. Cindy is a mother, a wife, a friend who received this diagnosis. So, we race.
10/12/2025 City Beer Runs - Standard Deviant Brewing 10K , 5K San Francisco, CA City Beer Runs combines fully supported 5K and 10K runs with some of the best beer around to create one big run loving social event! Each run starts at a local brew house and works its way through city streets before ending back at the host watering hole for a post run social! Save $5 with coupon code SWEAT.
10/12/2025 Clo Cow Half Marathon 13.1M, 10K, 5K Petaluma, CA The running of the Clo Cow Half Marathon, 10K & 5K is set to return to Historic Downtown Petaluma.
10/12/2025 Humboldt Redwoods Marathon 26.2M, 13.1M, 5K Weott, CA This race is in Humboldt Redwoods State Park and the Half Marathon follows the second half of the iconic Avenue of the Giants Marathon course.
10/12/2025 Lake Evans 5K/10K 10K, 5K Bakersfield, CA 5K & 10K Run/Walk.
10/12/2025 Run for Education 10K, 5K San Ramon, CA Come for the Run, Stay for the Fun.
10/12/2025 Run for Vision 5K 5K San Francisco, CA TBD. Join us at the Run for Vision 5K in October for a great race.
10/15/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5K (ish) route through the Marina neighborhood and the Presidio.
10/17/2025 Lake Tahoe Marathon Weekend 72M, 52.4M, 26.2M, 13.1M South Lake Tahoe, CA October 17-19, 2025.
10/17/2025 Lake Tahoe Marathon: Nevada Half 13.1M South Lake Tahoe, CA The Nevada Half Marathon is a boutique down hill half marathon starting at the top of Spooner Summit, ending on the bike path on Lakeshore Drive.
10/18/2025 Break Free Run 10K, 5K Folsom, CA Stand up against human trafficking this October by registering for the Break Free Run!
10/18/2025 Byxbee Parkrun 5K Palo Alto, CA A free, fun, and friendly weekly 5k community event. Walk, jog, run, volunteer or spectate – it's up to you!
10/18/2025 Cal-Neva Marathon 26.2M Lake Tahoe, CA The Cal-Neva Marathon is a boutique marathon limited 100 to a la carte runners. It is run as part of the Tahoe Triple.
10/18/2025 California Gold Rush Trail Run 13.1M, 15K, 10K, 5K Coloma, CA All of the courses are a mix of very appealing singletrack dirt trails and a few paved areas.
10/18/2025 Diablo Summit Stomp 30K, 13.1M, 10K, 5K Coloma, CA Courses are all on dirt trails, heading out from Castle Rock park in Walnut Creek, heading into Mount Diablo State Park -- all the way to the summit for the 30K.
10/18/2025 Donut Fun Run 5K Alameda, CA The Donut Fun Run will be a timed, donut-themed 5k race held at Alameda Point's Seaplane Lagoon Promenade.
10/18/2025 Head for the Cure 5K - San Francisco 5K San Francisco, CA Join us for our annual Head for the Cure 5K - San Francisco as we raise funds, awareness, and hope for the San Francisco brain tumor community!
10/18/2025 John Wayne Grit Series - Lone Pine 13.1M, 10K Lone Pine, CA The run benefits John Wayne Cancer Foundation.
10/18/2025 Lake Tahoe Marathon: Carnelian Bay Half 13.1M Lake Tahoe, CA This boutique half marathon course starts from Carnelian Bay and ends at Meadow Drive & H89.
10/18/2025 Oktoberfest Fun Run 10K, 5K Campbell, CA Kick off your Oktoberfest celebrations at Campbell’s Annual Oktoberfest Fun Run 10K, 5K & Kids' Dash.
10/18/2025 Willow Hills XC 5K Folsom, CA This 5k race is run in two loops of rolling hills around a water reservoir right next to Folsom High School.
10/19/2025 Big Steps for Little Friends 5K 5K San Francisco, CA NLF’s Big Steps for Little Friends 5K Run/Walk will be at Golden Gate Park.
10/19/2025 Cloverdale Vineyard Races 26.2M, 13.1M, 10K, 5K Cloverdale, CA Join us for our annual event, with all races in the vineyards near the historic Asti Winery!
10/19/2025 Dia de los Muertos Half 13.1M, 5K Bakersfield, CA Join Us for a Vibrant Celebration of Life and Remembrance!
10/19/2025 Fresno Donut Run 5K Fresno, CA A fun Donut Themed 5k Run & Walk at Woodward Park!
10/19/2025 Great Pumpkin Run 13.1M, 10K, 5K Half Moon Bay, CA The world-famous Half Moon Bay Art & Pumpkin Festival is the season’s signature event, drawing hordes of visitors to the “World Pumpkin Capital” for an epic festival.
10/19/2025 Lafayette Reservoir Run 10K, 5K, 2M Lafayette, CA The Run is the city’s most popular “family affair”.
10/19/2025 Lake Tahoe Marathon 26.2M South Lake Tahoe, CA TBD. Sunday's Marathon is the original Lake Tahoe Marathon , and is the 3rd marathon of the Triple Marathon.
10/19/2025 San Mateo Rotary Fun Run 10K, 5K San Mateo, CA San Mateo Rotary Fun Run
10/19/2025 Women's Run San Francisco - Mermaid Series 10M, 10K, 5K San Francisco, CA 5k, 10k, Sirena10 Mile, Mermaid Dash, Virtual Run.
10/22/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5K (ish) route through the Marina neighborhood and the Presidio.
10/25/2025 Big Sur River Run 10K, 5K Big Sur, CA TBD. A beautiful loop course along the Big Sur River and the towering redwood trees of Pfeiffer Big Sur State Park.
10/25/2025 Byxbee Parkrun 5K Palo Alto, CA A free, fun, and friendly weekly 5k community event. Walk, jog, run, volunteer or spectate – it's up to you!
10/25/2025 CASA of Kern County Superhero Run 10K, 5K, 2K Bakersfield, CA Join fellow heroes and villains as we run, walk, and fly in support of children in foster care.
10/25/2025 Miles for Migraine - San Francisco 5K San Francisco, CA This event is a fundraiser for Migraine & Headache Awareness, Treatment & Research.
10/25/2025 Monster Mash Dash 5K Fresno, CA This Halloween-themed annual race is a not to miss event and we guarantee you will experience a spooktacular fun time! Wear a Costume and be in our Costume Contest!
10/25/2025 Napa Wine Country Marathon 26.2M, 13.1M, 10K Calistoga, CA Babbling streams will be your soundtrack as you challenge yourself on the lush singletrack within Bothe-Napa Valley State Park.
10/25/2025 Oakland Hills Trail Run 35K, 13.1M, 10K Oakland, CA A hidden redwood forest lies in the hills just a few miles over the ridge from downtown Oakland.
10/25/2025 Pinkathon Challenge for Breast Cancer 50K, 26.2M, 13.1M, 10M, 10K, 5K San Francisco, CA The Pinkathon will happen as both an In-Person Event on Saturday, October 19, 2024 and as a Virtual Challenge that you can do wherever you want during the month of October!
10/25/2025 Trail Run at Sly Park 50K, 26.2M, 18M, 13.1M, 8.5M, 10K, 5K Pollock Pines, CA This event is held at the Sly Park Recreation Area in Pollock Pines, and it’s held under special use permit with the El Dorado National Forest.
10/26/2025 Bakersfield Monster Mash Dash 5K Bakersfield, CA This Halloween-themed annual race is an event that you won't want to miss and we guarantee you will experience a spooktacular fun time!
10/26/2025 Day of The Dead 5K 5K Fair Oaks, CA Our race begins in the center of Old Fair Oaks Village before descending over the bridge along the scenic American River Trail.
10/26/2025 Dia de los Miles 5K Elk Grove, CA Celebrate Hispanic heritage by joining us for the annual Dia de los Miles 5K and kids’ fun runs.
10/26/2025 Dia De Los Muertos 5K 5K Clovis, CA Join us at this special celebration for "Dia de los Muertos"! Participants are encouraged to dress in their Dia de los Muertos make up and costumes!
10/26/2025 LMJS Fourth Sunday Race - October 15K, 10K, 5K Oakland, CA The distances offered at these races are a 5K (once around the Lake), a 10K (two times around), and 15K (three times around).
10/26/2025 Winters Spooktacular Fun Run 10K, 5K, 1M Winters, CA Grab your costume and running shoes and head out to the Winters Runners and Walkers Club Spooktacular Fun Run and Costume Contest.
10/29/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.

November 2025

Date Event Distance Location Description
11/01/2025 Almaden Hills Run 50K, 26.2M, 21M, 13.1M, 8M, 10K, 5K San Jose, CA This event is set in Almaden Quicksilver Park, in the beautiful hills of Almaden Valley. In a nutshell: It's challenging and very fun. Volunteers get a free future race.
11/01/2025 Byxbee Parkrun 5K Palo Alto, CA What is Byxbee Parkrun? A free, fun and friendly weekly 5K community event. Join us every Saturday at 800a.m. in Byxbee Park.
11/01/2025 Dia De Los Muertos 5K Race 5K Sacramento, CA Come celebrate Dia De Los Muertos with a 5K. The race will be held at North Natomas Regional Park. It is a flat course held on the sidewalk which is a loop around the entire park. C
11/01/2025 Gobble Til You Wobble 26.2M, 13.1M, 10K, 5K, 1M Virtual Race It's time to lace up your running shoes and get your wobble on! Make a difference in the fight against hunger! Embrace the flexibility of this virtual race.
11/01/2025 Golden Gate Park XC Open 5K San Francisco, CA A 5k cross country race consisting of two loops (1 big loop, followed by 1 little loop) in beautiful Golden Gate Park.
11/01/2025 Halloween Trick or Trot Run - Sacramento 13.1M, 10K, 5K Sacramento, CA Run in our annual Halloween Run, where healthy fitness meets frightful fun! We will even give you some free Halloween candy after your run! Find a friend, set a goal and join this unique run!
11/01/2025 Halloween Trick or Trot Run - San Francisco 13.1M, 10K, 5K San Francisco, CA Run in our annual Halloween Run, where healthy fitness meets frightful fun! We will even give you some free Halloween candy after your run! Find a friend, set a goal and join this unique run!
11/01/2025 Kaweah Lake Bottom Trail Run 10K,, 5K Three Rivers, CA Get ready for an unforgettable experience! This exciting race invites runners of all levels to challenge themselves on a unique out and back course.
11/01/2025 Lodi Heroes Run 10K, 5K Lodi, CA Enjoy a day filled with something for everyone!
11/01/2025 Rio Del Lago 100M Granite Bay, CA We are excited to have you join us for this 100 mile event. It offers a variety of terrains that novice and veteran runners will enjoy.
11/01/2025 Sacramento"City of Trees" FALL Run 13.1M, 10K, 5K Sacramento, CA Whether you're racing for a personal best or just out for a stroll with friends, this event is all about celebrating the energy and spirit of the city.
11/01/2025 San Francisco "Golden Gate City" FALL Run 13.1M, 10K, 5K San Francisco, CA Whether you're racing for a personal best or just out for a stroll with friends, this event is all about celebrating the energy and spirit of the city.
11/01/2025 Stevens Creek Striders Saturday Run 13M, 5M Cupertino, CA We meet every Saturday at the Reservoir Parking Lot for a run, often followed by brunch. Don't worry about your pace…no one is left behind and no one will mind having more time to chat!
11/01/2025 Tunnel to Towers 5K - Sacramento 5K Sacramento, CA Born from the tragedy of 9/11, the Tunnel to Towers Foundation carries forward a legacy of courage and heroism.
11/01/2025 Zombie Runner Halloween 26.2M, 13.1M, 10K, 5K San Jose, CA Run in your Halloween costume along popular Coyote Creek and win a prize. The course is relatively flat, easy to follow and will be marked with directional signage the entire way.
11/02/2025 Clarksburg Country Run 30K, 13.1M, 10K, 5K Clarksburg, CA This nearly 60 year old race offers a variety of race distances. You can enjoy a complimentary lunch and a mimosa after the race along with your swag.
11/02/2025 Golden Gate Half Marathon 13.1M, 5K San Francisco, CA For longtime locals and first-time visitors alike, this course provides an extraordinary look at San Francisco.
11/02/2025 Oakland Tech 5K Fundraiser Race 5K, 1M Oakland, CA Support the Oakland Tech Cross Country and Track Team by running a 5k trail race or 1 mile fun run/walk in Joaquin Miller Park.
11/02/2025 San Bruno Mountain Saddle Trail 5K 5K SanBruno, CA DSE holds organized races nearly every weekend in and around SF. Our races are low key, family friendly and open to all runners and walkers of all ages and abilities.
11/02/2025 Saratoga 5K 5K Saratoga, CA The Saratoga Education Foundation is excited to announce our annual 5K Fun Run and Walk.
11/02/2025 Two Cities Marathon 26.2M, 13.1M, 10K, 5K Fresno, CA All start and finish activities will be located at beautiful Clovis Community College. This Boston qualifying marathon offers a scenic and truly flat course.
11/05/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
11/07/2025 Nor Cal Backyard Ultra 4.2M Granite Bay, CA This is an unparalled trail race set against the stunning backdrop of Folsom Lake in Granite Bay. Discover an unmatched test of stamina and resolve in this one-of-a-kind event.
11/08/2025 Byxbee Parkrun 5K Palo Alto, CA What is Byxbee Parkrun? A free, fun and friendly weekly 5K community event. Join us every Saturday at 800a.m. in Byxbee Park.
11/08/2025 Dia de los Muertos Pina 5K 5K San Jose, CA Join us for a vibrant celebration of life and rememberance! From the start line to the finish, experience the energy , culture and fun of this unforgettable event.
11/08/2025 Lake Chabot Trail Run 50K, 26.2M, 30K, 13.1M, 5M Castro Valley, CA The course starts at the Marina and travels around the popular Lake Chabot Reservoir and surrounding hills.
11/08/2025 Mermaid Trail Run 6H, 13.1M, 9M, 6M, 3M Woodside, CA Run, jog or walk through the magical forest of towering redwoods and lush trails at Huddart Park in Woodside.
11/08/2025 Mt. Tam Trail Run 50K, 30K, 13.1M, 10K Stinson Beach, CA Mt. Tam Trail Run begins at Stinson Beach and climbs to perched views from Tam before returning via some of the best trails the Headlands have to offer.
11/08/2025 Race to Cure Sarcoma 5K 5K, 1M Roseville, CA Sarcoma patients, survivors, their friends and loved ones come together as a community to support research and better treatments to end Sarcoma.
11/08/2025 Rancho Hills Fall Trail Run 50K, 26.2M, 30K, 13.1M, 10M, 8M, 10K, 5K Morgan Hills, CA If you are looking for flat and easy move on! But the climbs are well worth it….at the top is a panoramic view of the bay and Santa Cruz Mountains.
11/08/2025 San Luis Obispo Spartan Trifecta Weekend 50K, 21K, 1K Santa Margarita,CA This event is a Trifecta Weekend, giving racers the ability to complete a Trifecta (Sprint 5K, Super 10K & Beast 21K) in just one weekend.
11/08/2025 Stevens Creek Striders Saturday Run 13M, 5M Cupertino, CA We meet every Saturday at the Reservoir Parking Lot for a run, often followed by brunch. Don't worry about your pace…no one is left behind and no one will mind having more time to chat!
11/08/2025 Tulare Santa Fe Trail-A-Thon 5K 5K Tulare, CA All sponsorships benefit this organization's high school scholarship program.
11/08/2025 Wicked Wine Run - Paso Robles 5K, 1K Paso Robles, CA Join us at Booker Vineyard and enjoy the beauty of Paso Robles. You will be surrounded by unique terrain that produces world class wines.
11/09/2025 Fort to Fort 10K 10K San Francisco, CA Race check-in/race day registration begins 45 minutes prior to race start. Course details are subject to race day modifications based on weather, construction and other factors.
11/09/2025 Monterey Bay Half Marathon 13.1M, 5K, 3K Monterey, CA The half marathon begins and ends in historic downtown Monterey, runs along Cannery Row and next to the Pacific Grove Shoreline.
11/09/2025 Run the Parkway 20M, 13.1M Sacramento, CA This event will include an approximately four mile untimed Nature Walk! Walkers may turn aound at any point.
11/09/2025 San Luis Obispo Spartan Trifecta Weekend 10K, 5K, 1K Santa Margarita,CA This event is a Trifecta Weekend, giving racers the ability to complete a Trifecta (Sprint 5K, Super 10K & Beast 21K) in just one weekend.
11/09/2025 TCRS #10 5K Marin, CA This run is part of a series but you can join in any time. This series is designed for participants to experience the whole variety of running venues in Marin County.
11/12/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
11/14/2025 Southwest Series 26.2M, 13.1M Nipton, CA We have a "no runner left behind" policy and we happily stay until the final finisher crosses the line. Walkers and strollers welcome.
11/15/2025 Bed To 5K Run - Sacramento 13.1M, 10K, 5K Sacramento, CA Celebrating new runners! Snoozers! Are you a professional napper with dreams of becoming 5K finisher? Whether you are getting off the couch or out of bed, this event is made for you!
11/15/2025 Bed To 5K Run - San Francisco 13.1M, 10K, 5K San Francisco, CA Celebrating new runners! Snoozers! Are you a professional napper with dreams of becoming 5K finisher? Whether you are getting off the couch or out of bed, this event is made for you!
11/15/2025 Berkeley Family Fun Run 1K Berkeley, CA Kick off the fun community weekend by walking or running together before the expo opens.
11/15/2025 Byxbee Parkrun 5K Palo Alto, CA What is Byxbee Parkrun? A free, fun and friendly weekly 5K community event. Walk, jog, volunteer or spectate. It's up to you! Join us every Saturday at 800a.m. in Byxbee Park.
11/15/2025 Falcon Crest Winter Trail Challenge 26.2M, 30K,13.1M, 8.5M, 10K, 5K El Dorado Hills, CA The course follows the trails surrounding Jenkinson Lake through endless pine trees and buttery horse trails.
11/15/2025 Kennedy Club Fitness Turkey Trot 5K Paso Robles, CA TBD. Whether you are a seasoned runner or just looking for a fun way to kick off the holiday season come and enjoy the picturesque surroundings of Paso Robles.
11/15/2025 Stevens Creek Striders Saturday Run 5M to 13M Cupertino, CA We meet every Saturday at the Reservoir Parking Lot for a run, often followed by brunch. Don't worry about your pace…no one is left behind and no one will mind having more time to chat!
11/15/2025 Tierra Redonda Mountain Trail Run 48H, 24H, 20K, 10K, 5K Bradley, CA This event features a runnable 5km, 10km, 20km, 24 hour and 48 hour run on a 10km, 100% dirt, single track trail loop course.
11/15/2025 Veteran's Day Freedom Run - Sacramento 13.1M, 10K, 5K Sacramento, CA Celebrate Veteran's Day with our Freedom Run! Kick off the weekend running with friends and family in deep gratitude for the Veterans who have sacrificed so much for our freedom.
11/15/2025 Veterans Day Freedom Run - San Francisco 13.1M, 10K, 5K San Francisco, CA Celebrate Veteran's Day with our Freedom Run! Kick off the weekend running with friends and family in deep gratitude for the Veterans who have sacrificed so much for our freedom.
11/15/2025 Wascally Wabbit Trail Race 10K, 7K Fresno, CA Feel the sense of satisfaction when you complete this race knowing you have also helped a great cause, helping foster care children attain higher education.
11/16/2025 Berkeley Half Marathon 13.1M, 10K, 5K, 1K Berkeley, CA Choose your race or better together -make a team! Thousands of runners will fill the streets to run this hometown favorite!
11/16/2025 Miles for Melanoma - San Francisco 5K San Francisco, CA TBD. This annual signature event will bring together local Melanoma patients, survivors, care partners, supporters and health care heroes to fund raise and help continue the fight against Melanoma.
11/19/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
11/22/2025 bRUNch Run 5K, 1K Sanger, CA Join the Wicked Wine Run for a fun filled day of running or walking through the scenic vines, followed by a celebration of mimosas, music and friends!
11/22/2025 Byxbee Parkrun 5K Palo Alto, CA What is Byxbee Parkrun? A free, fun and friendly weekly 5K community event. Join us every Saturday at 800a.m. in Byxbee Park.
11/22/2025 Darrington Single Track Trail Challenge 36M, 18M, 10K, 5K Pilot Hill, CA Race along the shores of Sacramento's favorite recreational area, Folsom Lake, featuring stony dirt paths that wind along relentless highs with stunning vistas of the lake.
11/22/2025 Davis Turkey Trot 13.1M, 10K, 5K, 2M, 1M Davis, CA Enjoy a run/walk through Davis' residential neighborhoods and green belts.
11/22/2025 Golden Gate Trail Classic 50M, 50K San Francisco, CA Our race is held in one of the most picturesque, natural environments in the U.S.
11/22/2025 Muddy Dash Bay Area 5K Pleasanton, CA Muddy Dash is not your average run! Get ready for up to three miles of messy mayhem.
11/22/2025 Santa Cruz Turkey Trot 10K, 5K Santa Cruz, CA Flat, fast out and back courses that begin and end at the back entrance of Natural Bridges State Park. Run though the park and then to West Cliff for some spectacular ocean views.
11/22/2025 Stevens Creek Striders Saturday Run 5M to 13M Cupertino, CA We meet every Saturday at the Reservoir Parking Lot for a run, often followed by brunch. Don't worry about your pace…no one is left behind and no one will mind having more time to chat!
11/22/2025 Wicked Wine Run - Fresno 5K, 1K Sanger, CA This is a fun day of running or walking through the King's River Vineyard. Wine, music and friends! Don't miss your chance to sip, savor and run at the winery in Sanger!
11/23/2025 Golden Gate Trail Classic 25K, 15K San Francisco, CA Experience the Golden Gate Magic! Start in the iconic city of San Francisco, travel across the Golden Gate Bridge and venture into the fabled Marin Headlands.
11/23/2025 Kennedy Drive Run 8K San Francisco, CA Race check-in/race day registration begins 45 minutes prior to race start. Course details are subject to race day modifications based on weather, construction and other factors.
11/23/2025 Left Over Turkey Trot Crockett 10K, 5K, 1K Oakland, CA Enjoy beautiful Bay Area scenery as you run through miles in the pretty hills of Crockett.
11/23/2025 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA The Fourth Sunday Runs are held every month except May (Tilden Tough Ten) and June (Woodmonster!) on the fourth Sunday of the month.
11/23/2025 Manda Run 13.1M, 5K Loomis, CA TBD. The Manda Half Marathon enjoys a unique point-to-point scenic route with gently rolling terrain starting in Auburn at Placer High School and finishing at the Train Depot in Downtown Loomis.
11/26/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
11/27/2025 Bakersfield Turkey Day Run 5K, 1M Bakersfield, CA Start Thanksgiving Day off by starting or continuing a new family tradition at the Bakersfield Turkey Day Run on Thanksgiving morning!
11/27/2025 Benicia Hand Up Turkey Trot 5K 5K Benecia, CA We are helping to give a "handup" to patients along their journey fighting cancer…with rent and mortgage payments, gas and groceries, medical expenses, utility payments and other needs.
11/27/2025 Bishop Ranch Turkey Trot 5K San Ramon, CA Join us on Thanksgiving Day for a 5K run/walk that starts in the heart of City Center and takes you around Lake Annabel along safe paths and gardens.
11/27/2025 Cayucos Turkey Trot 5K 5K Cayucos, CA Thanksgiving Day Family 5K Fun Run/Walk. Kids under 12 run free. Dogs, strollers and kiddos on scooters are welcome.
11/27/2025 Clovis Turkey Day Run 5K, 2K Clovis, CA What a great way to start your Thanksgiving! Trot on over on Thanksgiving morn and then eat your Thanksgiving feast guilt free.
11/27/2025 Coalinga Turkey Trot 5K, 2K Coalinga, CA Trot your way through this event before you head home to feast. This course is family friendly so make sure to sign up your kids, cousins, aunts and uncles!
11/27/2025 Concord California Turkey Trot 5K 5K Concord, CA This event benefits Loaves and Fishes of Contra Costa. The course includes varied terrain including grassy fields, park pathways and city streets.
11/27/2025 Healdsburg 5K Turkey Trot 5K Healdsburg, CA The tradition continues! This run promises a great time in our community - enjoy the morning in downtown beautiful Healdsburg!
11/27/2025 Marin Turkey Trot 10K, 5K, 1M Novato, CA Don't miss out on joining in the Bank of Marin Turkey Trot. Run before you feast! Register before the race sells out! Let's run!
11/27/2025 Nitro Turkey Thanksgiving Run 10K, 5K San Pablo, CA Nitro Turkey will be supporting the Food Bank of Contra Costa and Solano. We encourage every little turkey to bring at least one canned good on race day morning.
11/27/2025 Oakland Turkey Trot 5K Oakland, CA Earn your days indulgence at the Oakland Turkey Trot on Thanksgiving morning!
11/27/2025 Run Against Hunger 10K, 5K, 1K Stockton, CA Kick start Thanksgiving with a fun and healthy tradition!
11/27/2025 Santa Rosa Turkey Trot 5K Santa Rosa, CA Join us for a great Thanksgiving morning! This is a flat course you can run, jog or walk. Finish with a smile on your face!
11/27/2025 Sausalito FREE Turkey Trot 5K 5K Sausalito This is a small gathering of a runners group. Enter your name next to the bib number on the website…show up…run..that's all.
11/27/2025 Silicon Valley Turkey Trot 10K, 5K San Jose, CA Start Thanksgiving Day off on the right foot at the Applied Materials "Silicon Valley Turkey Trot". Many have made the run or walk a Thanksgiving Day tradition.
11/27/2025 Turkey Trot Fresno 5K, 2M Fresno, CA The original Fresno Turkey Trot! Run then eat your Thanksgiving feast guilt free.
11/27/2025 Zoom Turkey Trot 13.1M, 10K, 5K San Jose, CA Run along the popular Coyote Creek trail Thanksgiving morning and stand to win a turkey!
11/29/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
11/29/2025 Quad Dipsea 28M Mill Valley, CA You must run the famed Dipsea Trail as marked. There is a total of 9200 feet of climb and an equal amount of descent in the 28 miles.
11/29/2025 Quarry Turkey Half Marathon 13.1m, 10K, 5K Fremont, CA The fun doesn't end on Thanksgiving! The rarely seen Quarry Turkey will make his appearance two days after the big feast, fueled up and ready to take on all the little turkeys!
11/29/2025 Run for Coffee Lovers - Sacramento 13.1M, 10K, 5K Sacramento, CA For all coffee lovers, this run is for you! Set a goal today for your next run. Register now for a memorable race experience.
11/29/2025 Run for Coffee Lovers - San Francisco 13.1M, 10K, 5K San Francisco, CA For all coffee lovers, this run is for you! Set a goal today for your next run. Register now for a memorable race experience.
11/29/2025 Stevens Creek Striders Saturday Run 13M, 5M Cupertino, CA We meet every Saturday at the Reservoir Parking Lot for a run, often followed by brunch. Don't worry about your pace…no one is left behind and no one will mind having more time to chat!
11/29/2025 Thanksgiving Turkey Gobble Trot - Sacramento 13.1M, 10K, 5K Sacramento, CA Before you dive into the stuffing and turkey this year, get a run/walk with your family, friends and community.
11/29/2025 Thanksgiving Turkey Gobble Trot - San Francisco 13.1M, 10K, 5K San Francisco, CA Before you dive into the stuffing and turkey this year, get a run/walk with your family, friends and community.
11/30/2025 McGuire's Breakfast Runs 8K, 3K Santa Rosa, CA Two events - run for fun or as competitive as you like.
11/30/2025 Spreckles Lake 5K 5K, 1M San Francisco, CA Two races in one! Challenge yourself with a moderately uphill 1 mile race, a scenic 5K loop or both.

December 2025

Date Event Distance Location Description
12/03/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
12/06/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
12/06/2025 Calero Trail Run 50K, 26.2M, 25K, 13.1M, 15K, 10K, 5K San Jose, CA Beginning at Calero County Park, this trail run has everything!
12/06/2025 High Desert Ultra 50K & 30K 50K, 30K Ridgecrest, CA Loop course over rolling desert terrain on jeep roads, single track trails, and sandy washes.
12/06/2025 Last 10K & Final 2 Mile 10K, 2M Santa Rosa, CA TBD. he Last 10k is Empire Runners last race of the calendar year. You will run on paved paths and trails during the race.
12/06/2025 MaraFUNrun 5K Sacramento, CA Runnin’ for Rhett hosts the MaraFUNrun in Land Park this year! 3,000 youth athletes from the Sacramento area take part in a 5K race.
12/06/2025 Midway Shelter Winter 5K 5K Alameda, CA Join us for another year of the Midway Shelter Winter run and walk.
12/06/2025 Peacock Gap Trail Run 30K, 13.1M, 10K San Rafael, CA The courses wind along thick forests and descend out into open trails on the San Pablo Bay side of the park.
12/06/2025 Reindeer Run 10K, 5K American Canyon, CA There is something for everyone at the Reindeer Run. We welcome runners and walkers of every level to American Canyon.
12/06/2025 River Valley's Jingle Bell Jog 5K Yuba City, CA Join the Jingle Bell Jog 5K Run/Walk and embrace the holiday season!
12/06/2025 San Joaquin River Trail Run 100K, 50K, 25K Friant, CA Come out and run some of the best trails in the valley along Millerton Lake and the San Joaquin River.
12/06/2025 ZombieRunner Quarry Lakes Run 26.2M, 30K, 13.1M, 10K, 5K Fremont, CA The course starts in the scenic Quarry Lakes Regional Recreation area and follows the popular Alameda Creek Trail up to the mouth of Niles Canyon.
12/07/2025 California International Marathon 26.2M, 2.6M Sacramento, CA Our point-to-point, net-downhill course has remained unchanged for 40 years, starting from Folsom’s scenic foothills and ending at the historical California State Capitol.
12/07/2025 Krampus Cross Country 5K/10K 10K, 5K San Francisco, CA This one is special for a few reasons... It's the ONLY trail event/race taking place in SF. It's the ONLY event/race featuring Krampus.
12/07/2025 Lucha Run 6K, 3K Fresno, CA Get ready for Lucha Run—a lively, family-friendly event to finish the year with a bang! Bring your best "luchador/a" costume and join us for either a 6K run or a 3K (2-mile) walk.
12/07/2025 Santa Skivvies Run 1M San Francisco, CA Santa Skivvies Run is an annual holiday underwear fun run/walk and fundraiser benefiting San Francisco AIDS Foundation.
12/10/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
12/13/2025 12Ks of Christmas 12K, 2M Redding, CA Both races will start at 9am from Lake Redding Park.
12/13/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
12/13/2025 Folsom Lake Trail Half Marathon 13.1M El Dorado Hills, CA Come join us for a 95% single track 5% dirt road trail race alongside the beautiful Folsom Lake.
12/13/2025 Hark The Herald Half Marathon 13.1M, 10K Tiburon, CA You'll fall in love with San Francisco all over again as you follow this hilly loop trail circumnavigating Angel Island.
12/13/2025 Holiday Hustle 5K, 10K Sacramento 10K, 5K Sacramento, CA Adventure through the wonderfully decorated old neighborhoods of Sacramento's Mid-40s.
12/13/2025 Holiday Hustle 5K, 10K Walnut Creek 10K, 5K Walnut Creek, CA Adventure through the wonderfully decorated neighborhoods of Walnut Creek.
12/13/2025 Holiday Run and Walk for Health 3M, 1M Antioch, CA We are very excited to bring back the Kiwanis Holiday run.
12/13/2025 Jingle Bell Run for Toys for Tots 5K Fresno, CA Each year the event welcomes 3,000+ participants and is fast becoming a family annual tradition and raising toys and cash for the Toys for Tots campaign.
12/13/2025 Modesto Spirit of Giving 5K 5K Modesto, CA Be part of something big.
12/13/2025 Palo Alto Double 15K, 10K, 5K Palo Alto, CA Bring the whole family and enjoy our pre Christmas events. Everybody gets a Santa Hat and all finishers get a medal.
12/13/2025 Summit Rock Half Marathon 13.1M, 10K, 5K Saratoga, CA Come join us in the beautiful redwood groves of the Santa Cruz Mountains!
12/14/2025 Hanukkah 8 Krazy Kilometers 8K, 2K Bakersfield, CA Runners, joggers and walkers of all ages are invited to the annual Hanukkah 8 Krazy Kilometers.
12/14/2025 Jingle Bell 5K 5K Sausalito, CA Jingle Bell 5K and Brunch.
12/14/2025 Santa Hustle - Roseville 13.1M, 5K Roseville, CA It’s the most wonderful time of the year! So, find that Christmas spirit and join us.
12/14/2025 Santa Run Silicon Valley 5K San Jose, CA The Santa Run Silicon Valley offers a variety of family fun events from a 5K run/walk to a Kids Reindeer dash.
12/17/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
12/20/2025 Bakersfield Jingle Bell Run for Toys for Tots 5K Bakersfield, CA The Jingle Bell Run will feature a Christmas designed Sweatshirts and Jingle Bells to all registered participants.
12/20/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
12/20/2025 Clovis Rudolph Run 5K Clovis, CA Continue the newest family tradition! Bring friends and enjoy a fun morning of music and Reindeer Games!
12/20/2025 Placerville's Holiday Jingle and Mingle Run 13.1M, 15K, 10K, 5K Placerville, CA This event is run on the El Dorado Trail in beautiful historic Placerville. The path is surrounded with beautiful oak trees, rolling hills, and incredible views.
12/21/2025 Rainbow Falls 5K 5K San Francisco, CA The DSE is a club that encourages runners and walkers of all levels to compete, socialize, have fun and improve ourselves.
12/24/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
12/27/2025 Brazen New Year's Eve Castro Valley, CA 13.1M, 10K, 5K Whether you are looking to squeeze in your first trail run or you're looking to log that 1,000th mile before the year ends, this is your chance!
12/27/2025 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
12/28/2025 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA Come join us at Lake Merritt for one of the East Bay's favorite races!
12/28/2025 Windmill 10K 10K San Francisco, CA The DSE is a club that encourages runners and walkers of all levels to compete, socialize, have fun and improve ourselves.
12/31/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
12/31/2025 New Year's One Day 100M, 24H, 12H, 6H San Jose, CA Start the New Year running as far as you can or as little as you want. Sign up individually or as a team!

January 2026

Date Event Distance Location Description
01/01/2026 Auburn Resolution Run 10M, 10K, 5K Auburn, CA This is the perfect way to kickstart your New Year's resolutions with a dash of adventure and a breath of fresh air.
01/01/2026 Brazen New Year's Day Runs 13.1M, 10K, 5K Castro Valley, CA The sun is rising on New Year's Day? Where should you be? Hitting the trails of Lake Chabot, of course!
01/01/2026 Free New Year's Day 5K by Chico Running Club 5K Chico, CA Start the new year off right! Join us for a Chico Running Club tradition - our New Year's 5K! This is a free event, bibs will not be assigned.
01/01/2026 New Year's One Day 24H, 100M, 12H, 6H San Jose, CA Start the new year running as far as you can or as little as you want! Sign up individually or as a team! The course is a 6 mile loop.
01/01/2026 Resolve2Run 10K, 5K Grass Valley, CA Race begins at 10:00 am at Chicago Park School.
01/03/2026 Byxbee Parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
01/03/2026 Dia De Los Reyes Magos - Bakersfield 13.1M, 5K Bakersfield, CA There is a special day in Mexico that is known as 'El Dia de Reyes' or Three King's Day. Join us for a morning of family fun as we celebrate this special day by running our fast and flat course.
01/03/2026 Frosty Fun Run 4.3M, 2M Redding, CA This event takes place at Lake Redding Park. Join us for this race series and earn points for the Frosty Championship
01/03/2026 Hacienda Hills Run (Winter) 50K, 26.2M, 30K, 13.1M, 9M, 10K, 5K, 1M San Jose, CA Located just outside of San Jose at the Almaden Quicksilver County Park, we are having a spectacular day of Northern California trail running.
01/03/2026 Kiwanis Resolution Run 5K/10K 10K, 5K Mountain View, CA The Resolution Run is ON!! Let's start the new year with a fun race for all! Enjoy a great race in the park and the camaraderie of other runners and some post race music and refreshments.
01/03/2026 Lost Coast 55K 55K Whitehorn, CA Run wild, run free! Want to start the new year with a killer adventure? Look no further than the Lost Coast. Rough, remote, yet incredibly runnable backcountry awaits in Humbodlt County.
01/03/2026 New Year New Me Run - Sacramento 13.1M, 10K, 5K Sacramento, CA Kick off the new year with energy, excitement and a community of runners ready to chase their goals. Whether you are a seasoned racer or just starting out, this run is for YOU!
01/03/2026 New Year New Me Run - San Francisco 13.1M, 10K, 5K San Francisco, CA Kick off the new year with energy, excitement and a community of runners ready to chase their goals. Whether you are a seasoned racer or just starting out, this run is for YOU.
01/03/2026 New Year's Duathlon & 5K 5K Granite Bay, CA The New Year's 5K Run/Walk is on a beautiful and fun course with nature trails and lake views. Not to be missed!
01/03/2026 Stevens Creek Striders Saturday Run 2M to 13M Cupertino, CA We meet every Saturday, rain or shine, at the Reservoir Parking Lot for a run, often followed by brunch. Varying distances and paces, accomodating all levels of runners.
01/03/2026 Sunrise Marathon - Sacramento 13.1M, 10K, 5K Sacramento, CA Rise. Run. Shine. Start your day with purpose, peace and a little pavement. This breathtaking early morning race is designed to energize your soul and awaken your senses.
01/03/2026 Sunrise Marathon - San Francisco 13.1M, 10K, 5K San Francisco, CA Rise. Run. Shine. Start your day with purpose, peace and a little pavement. This breathtaking early morning race is designed to energize your soul and awaken your senses.
01/04/2026 Dia De Los Reyes Magos - Fresno 13.1M, 3K Fresno, CA There is a special day in Mexico that is known as 'El Dia de Reyes' or Three King's Day. Join us for a morning of family fun as we celebrate this special day by running our fast and flat course.
01/07/2026 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
01/10/2026 Byxbee Parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
01/10/2026 Frosty Fun Run 4M, 2M Redding, CA This event takes place at LEMA Ranch. Join us for this race series and earn points for the Frosty Championship.
01/10/2026 Hope in Every Step 5K 5K Modesto, CA This event is set against the beautiful trails of East La Loma Park. Participants will run or walk the course filled with encouragement, camaraderie and a spirit of togetherness.
01/10/2026 No Hands Trail Run 50K, 35K, 13.1M, 8K Auburn, CA Participants will run along the historic Western States Trail to "No Hands Bridge", the dreaded K2 training hill and then the punishing Overlook Hill to the finish line.
01/10/2026 Stevens Creek Striders Saturday Run 2M to 13M Cupertino, CA We meet every Saturday, rain or shine, at the Reservoir Parking Lot for a run, often followed by brunch. Varying distances and paces, accomodating all levels of runners.
01/11/2026 Hot Chocolate 15K/5K 15K, 5K San Francisco, CA A chocolate lover's oasis waits at the post-race party! Celebrate your accomplishment with a finisher mug that includes fondue, dippables and our very own hot chocolate!
01/14/2026 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
01/17/2026 Byxbee Parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
01/17/2026 MLK Freedom Run - Sacramento 13.1M, 10K, 5K Sacramento, CA This event is not about just about fitness; it's a celebration of community, a call to action for social change and a reminder of the work to still be done. Let's run with purpose and passion.
01/17/2026 MLK Freedom Run - San Francisco 113.1M, 10K, 5K San Francisco, CA This event is not about just about fitness; it's a celebration of community, a call to action for social change and a reminder of the work to still be done. Let's run with purpose and passion.
01/17/2026 Run For Donuts - Sacramento 13.1M, 10K, 5K Sacramento, CA Running for donuts is worth the pain! Get ready for a sweet race! Gather your friends and lace up for a run on a beautiful course and be greeted at the finish line with…donuts.
01/17/2026 Run For Donuts - San Francisco 13.1M, 10K, 5K San Francisco, CA Running for donuts is worth the pain! Get ready for a sweet race! Gather your friends and lace up for a run on a beautiful course and be greeted at the finish line with…donuts.
01/17/2026 Stevens Creek Striders Saturday Run 2M to 13M Cupertino, CA We meet every Saturday, rain or shine, at the Reservoir Parking Lot for a run, often followed by brunch. Varying distances and paces, accomodating all levels of runners.
01/18/2026 Crystal Springs (Winter) Trail Run 50K, 26.2M, 35K, 13.1M, 8K Woodside, CA Experience the towering redwoods, lush ferns, and beautiful trails through Huddart Park, King's Mountain and Bear Gulch.
01/18/2026 Redding Marathon 26.2M, 5K Redding, CA Enjoy a scenic journey down stream along the Sacramento River on paved running trails. Watch for bald eagles, osprey and other wildlife!
01/21/2026 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
01/24/2026 Byxbee Parkrun 5k Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
01/24/2026 Folsom Lake Sweetwater Trail Run 50K, 26.2M, 30K, 13.1M, 9M, 10K, 5K El Dorado Hills, CA This race is run on 95% single-track and 5% dirt road. The course primarily follows the South Side Trail.
01/24/2026 Frosty Fun Run 5M, 2.8M Redding, CA This event takes place at Anderson River Park. Join us for this race series and earn points for the Frosty Championship.
01/24/2026 Gumby 10K & 5K 10K, 5K Granite Bay, CA This race features a beautiful trail course along the shores of Folsom Lake.
01/24/2026 Stevens Creek Striders Saturday Run 2M to 13M Cupertino, CA We meet every Saturday, rain or shine, at the Reservoir Parking Lot for a run, often followed by brunch. Varying distances and paces, accomodating all levels of runners.
01/25/2026 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA All those interested in running, whether beginner, walker, jogger or competitive racer are welcome to join our monthly runs.
01/28/2026 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
01/31/2026 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
01/31/2026 Coyote Hills Half Marathon 13.1M, 10K, 5K Fremont, CA Howl if you love bay views! Race Forecast: 100% Chance of Awesome! You will find an abundance of scenic views and a variety of surfaces.
01/31/2026 Frosty Fun Run 4M, 2.4M Redding, CA This event takes place at Clover Creek Preserve. Join us for this race series and earn points for the Frosty Championship.
01/31/2026 Race to the Flagpole 10K, 5K, 1M Livermore, CA This event is open to all ages and abilities. We host this event to encourage awareness and appreciation for fitness, as well as to foster community pride.
01/31/2026 Rotary Mission Ten 13.1M, 10M, 5K San Juan Bautista, CA This event has been held for over 40 years. The rural course takes runners through farmland and up the Anzar hills.
01/31/2026 Stevens Creek Striders Saturday Run 2M to 13M Cupertino, CA We meet every Saturday, rain or shine, at the Reservoir Parking Lot for a run, often followed by brunch. Varying distances and paces, accomodating all levels of runners.

February 2026

Date Event Distance Location Description
02/01/2026 San Francisco Half Marathon 13.1M, 10K, 5K San Francisco, CA A runners’ favorite for its scenery and value. Fast and certified course through San Francisco’s scenic Golden Gate Park.
02/04/2026 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/07/2026 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
02/07/2026 Death Valley Marathon 26.2M, 13.1M, 10K Death Valley, CA You'll admire the beauty of the surrounding desert as you follow this paved run from the Oasis Ranch through the heart of Death Valley National Park.
02/07/2026 Escape from Folsom 10 Miler and 5K 10M, 5K Granite Bay, CA The Escape from Folsom 5K and 10 Miler both have new courses on scenic trails along the shoreline of Folsom Lake.
02/07/2026 Fort Ord Trail Run 50K, 25K, 10K Monterey, CA The Fort Ord Trail Run has a capacity of 600 runners.
02/07/2026 Frosty Fun Run 5.5M, 2M Redding, CA Race day registration only.
02/07/2026 Golden Gate (Winter) 50K, 26.2M, 30K, 13.1M, 8K Sausalito, CA Enjoy vistas of the Pacific Coast and of the spectacular Marin Headlands with views of Tiburon, San Francisco and the Golden Gate Bridge.
02/07/2026 Mt. Umunhum Trail Conquest 50K, 26.2M, 30K, 13.1M, 7M, 5K San Jose, CA This race starts at the Hacienda Entrance of Almaden Quicksilver Park.
02/08/2026 Super Bowl Sprint 5K Visalia, CA Get those running shoes ready! It's time to lace up for a great cause with Creative Center Foundation's Annual Super Bowl Sprint.
02/11/2026 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/14/2026 Bay Breeze 13.1M, 10K, 5K San Leandro, CA Known for its romantic vistas of San Francisco and the Bay, our Bay Breeze race sets the stage for romance, whether you are in love with running or not.
02/14/2026 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
02/14/2026 Fresno Valentine Run 5K, 2M Fresno, CA A family tradition since 2002!
02/14/2026 Frosty Fun Run 4M, 2.5M Redding, CA Join us for this 8 race series. Races are on Saturday mornings at a different location each week.
02/18/2026 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/21/2026 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
02/21/2026 Corporal Javier Bejar Memorial Run Reedley Police Department 6M Reedley, CA This memorial run is more than a race—it’s a tribute to courage, service, and community.
02/21/2026 FOURmidable 50K, 35K, 13.1M, 13K Auburn, CA FOURmidable trail races, an exhilarating adventure that promises to test your limits and immerse you in the breathtaking beauty of the Sierra Nevada foothills.
02/21/2026 Frosty Fun Run 4M, 2.4M Redding, CA Join us for this 8 race series. Races are on Saturday mornings at a different location each week.
02/21/2026 Lost Trail Half 13.1M, 5K Granite Bay, CA The Lost Trail 5K and Half Marathon have very well-marked courses that offer scenic lake views with lots of beautiful wildflowers in between well-stocked aid stations.
02/21/2026 Montara Mountain Trail Run 50K, 26.2M, 20M, 13.1M, 10K Pacifica, CA Montara Mountain features the only undisturbed Coastal Mountain Habitat found over 100 miles of coastline.
02/21/2026 Redtail Ridge 50K, 30K, 13.1M, 10K, 5K Castro Valley, CA This is one of our typically faster races with less elevation and some paved sections.
02/22/2026 FCancer Race 10K, 5K Middletown, CA Everyone knows someone touched by Cancer, so you know what?? F*** CANCER! I know its harsh, but sometimes you have to just feel your feelings. Come run or walk it out.
02/22/2026 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA All those interested in running, whether beginner, walker, jogger or competitive racer are welcome to join our monthly runs.
02/25/2026 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/28/2026 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
02/28/2026 Frosty Fun Run 4.3M, 2M Redding, CA Join us for this 8 race series. Races are on Saturday mornings at a different location each week.
02/28/2026 Have a Heart for Kids 5K 5K Yuba City, CA The Have a Heart for Kids 5K Run/Walk is a fundraiser for the Yuba City Education Foundation.
02/28/2026 Salmon Falls 50K 50K Coloma, CA The Salmon Falls 50K is a point to point ultra distance trail race.
02/28/2026 Sanborn Trail Challenge 13.1M. 8M, 4M Saratoga, CA TBD. The course is 95% single track trail, extremely mountainous, very technical, lushly wooded with a mixed evergreen forest.
02/28/2026 Support Blue Run 10K, 5K Fresno, CA Join us at this year's Support Blue Run to show your support for our men and women in law enforcement who protect our Valley.
02/28/2026 Victory Race 13.1M, 10K, 5K Richmond, CA Starting at the historic Craneway Pavilion, all distances will run out along the San Francisco Bay Trail with breathtaking views of the San Francisco Bay.

March 2026

Date Event Distance Location Description
03/01/2026 Livermore Valley Half Marathon 13.1M, 5K Livermore, CA Join the Livermore Valley Half Marathon in California’s oldest wine region featuring a ‘Best of the Bay’ award. The 13.1 mile run is followed by the famed wine, beer & music festival.
03/01/2026 Napa Valley Marathon 26.2M, 13.1M, 5K Calistoga, CA Following the famed Silverado Trail from Calistoga to Napa, our point to point marathon passes beautiful scenery & some of the most world-renowned wineries along the way.
03/01/2026 Zoom Angel Island 15M, 10M, 5M Tiburon, CA Enjoy spectacular views of Marin County, San Francisco and the Golden Gate as you run this hilly, grass and forest covered island.
03/04/2026 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/07/2026 5K & Polar Plunge - Sacramento 5K, 1M Granite Bay, CA This event is an iconic tradition in which brave supporters of Special Olympics raise funds by taking a quick dip in chilly waters.
03/07/2026 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
03/07/2026 Chanoko Trail Runs 50K, 31K, 5M Granite Bay, CA Participants have a choice of three distances.
03/07/2026 Race to the Top of Mt. Umunhum Vert Trail Challenge 13.1M San Jose, CA TBD. This course is Point to Point. We will provide transportation back to the start line. Courses will be marked with ribbons, cones, signs and gypsum.
03/07/2026 Run for Mental Health - Sacramento 13.1M, 10K, 5K Sacramento, CA Mental health is just as important as physical health and every step you take can help make a difference.
03/07/2026 Run for Mental Health - San Francisco 13.1M, 10K, 5K San Francisco, CA Mental health is just as important as physical health and every step you take can help make a difference.
03/07/2026 Super Heroes Run - Sacramento 13.1M, 10K, 5K Sacramento, CA This exciting event celebrates the super hero in everyone!
03/07/2026 Super Heroes Run - San Francisco 13.1M, 10K, 5K San Francisco, CA This exciting event celebrates the super hero in everyone!
03/07/2026 Way Too Cool Endurance Run 50K, 10M Cool, CA This race has become the most sought after 50K in the United States for veterans and novices alike.
03/08/2026 Artesa Wine Run 5K 5K Napa, CA Whether you are looking to run, walk or just enjoy the wine and camaraderie this race is a sure thing for a great time and incredible experience.
03/08/2026 Foggy Bottom Milk Run 10M, 4M, 2M Ferndale, CA The Foggy Bottom Milk Run is a wonderful family event, with team trophies in the 2 mile school team divisions, and age group awards in the 4 mile and 10 mile events.
03/08/2026 Tesoro Viejo Spring Classic 13.1M, 10K, 5K Madera, CA This will take you away from busy city streets to tranquil paths through some of the most beautiful SPRING scenery which rivals any run in the State.
03/11/2026 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/14/2026 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
03/14/2026 Folsom Lake South Side Trail Runs 50K, 26.2M, 30K, 13.1M, 10M, 7.5M, 10K, 5K, 1M Folsom, CA TBD. Great running with oak trees, lush green grass, nice scenery, views of Folsom Lake, the surrounding foot hills and the snowcapped Sierra Mountains.
03/14/2026 Marin Ultra Challenge 50M, 50K Sausalito, CA The Marin Ultra Challenge, our premier Marin County long distance trail race, delivers ample hills and sweeping descents.
03/14/2026 Rocky Hill 10K, 5K Exeter, CA We are the best kept secret in the Central Valley in the foothills of the Sierra Nevada mountain range.
03/14/2026 Shamrock'n 10K, 5K Sacramento, CA Celebrate St. Patrick’s Day with a Shamrock-themed Half Marathon, 10K, 5K and Fun Run!
03/14/2026 Sloth Run - Sacramento 13.1M, 10K, 5K Sacramento, CA Get ready to embrace a refreshing twist on racing! This unique event is all about taking it slow and enjoying the journey, where the motto is "Slow is the new fast!".
03/14/2026 Sloth Run - San Francisco 13.1M, 10K, 5K San Francisco, CA Get ready to embrace a refreshing twist on racing! This unique event is all about taking it slow and enjoying the journey, where the motto is "Slow is the new fast!".
03/14/2026 St. Paddy's Day Lucky Run - Sacramento 13.1M, 10K, 5K Sacramento, CA Get ready to lace up your shoes and celebrate the spirit of St. Patrick's Day. Join a lively community of fellow revelers as you don your favorite green gear.
03/14/2026 St. Paddy's Day Lucky Run - San Francisco 13.1M, 10K, 5K San Francisco, CA Get ready to lace up your shoes and celebrate the spirit of St. Patrick's Day. Join a lively community of fellow revelers as you don your favorite green gear.
03/14/2026 Whale Run and Walk 13.1M, 10K, 5K Fort Bragg, CA Whale Run kicks off the Whale Festival! The ocean and trails are as magnificent as ever and we know you will love the breathtaking white water views (including whales) and all the festivities on race day.
03/15/2026 Shamrock'n Half Marathon 13.1M Sacramento, CA The Shamrock'n 5K, 10K and Leprechaun Dash will be on Saturday. The Shamrock'n Half Marathon will be on Sunday.
03/15/2026 St Patrick's Day Run 4M, 2M Fresno, CA Whether you run or walk the Shamrock 4 Miler or our GREEN Leprechaun 2 Miler you'll have a great time.....
03/18/2026 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/21/2026 5K & Polar Plunge - Bay Area 5K San Francisco, CA This event is an iconic tradition in which brave supporters raise funds for Special Olympics by taking a quick dip in chilly waters.
03/21/2026 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
03/21/2026 Eat.Learn.Play. Kid's Run 1M, .5M, .25M Oakland, CA Welcome to the Oakland Kid's Celebration of Play. We have running distances for ages 0-12 years as well as activities and music.
03/21/2026 Marina Double 15K 15K, 10K, 5K Brisbane, CA This course is one of the most beautiful in the Bay Area. Run either the 10K, 5K Run/Walk or the Double Double 15K.
03/21/2026 Mighty Dog Trail Runs 10K, 5K Granite Bay, CA This event offers two distances: 5K and 10K - both for walkers, runners and their dogs!
03/21/2026 Napa Valley Trail Marathon 26.2M, 13.1M, 10K Calistoga, CA The course is a bit challenging with the hills, streams and rocks - which makes it all the more exciting and rewarding.
03/21/2026 Rattlesnake Dick 50K, 25K, 10K Cool, CA The year is 1856. Rattlesnake Dick, known as the Pirate of the Placers, stalks the Auburn hills. Join our outlaw posse and race to find his stolen loot.
03/21/2026 Redwood Trail Run Spring 50K, 26.2M, 30K, 13.1M, 5M Oakland, CA The course travels through beautiful Redwood Regional Park.
03/21/2026 South Hills Single Track Trail Run 50K, 26.2M, 16M, 13.1M, 9M ,10K, 5K San Jose, CA TBD. Beginning at Calero County Park, this trail run has everything! Experience awesome single track, great hills and dirt paths.
03/21/2026 Spirit of Benny 10K, 5K Placerville, CA The Spirit of Benny® is more than another 5K or 10K race. It is an annual celebration to honor the memory of a special boy while helping others in difficult circumstances.
03/21/2026 TRUSS Wines 5K Wine Run 5K Paso Robles, CA Join us for an amazing tour of this iconic landscape and enjoy some amazing locally produced wines after the event!
03/22/2026 Bakersfield Marathon 26.2M, 13.1M, 10K, 6K Bakersfield, CA The Bakersfield Marathon has a race for everyone! You will enjoy the scenic courses through Downtown Bakersfield.
03/22/2026 Lag Bon 10K 10K Fairfax, CA A trail running fundraiser dedicated to World Water Day.
03/22/2026 LMJS 4th Sunday Run 15K, 10K, 5K Oakland, CA All those interested in running, whether beginner, walker, jogger or competitive racer are welcome to join our monthly runs.
03/22/2026 Modesto Marathon 26.2M, 13.1M, 10K, 5K Modesto, CA The flat, fast course will be open 7 hours, allowing adequate time for first-time marathoners.
03/22/2026 Oakland Marathon 26.2M, 13.1M, 10K, 5K Oakland, CA This event has been nationally recognized as the Bay Area race to run by Competitor Magazine. The people of Oakland make you feel welcome from start to finish.
03/25/2026 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido.
03/28/2026 Bad Ass Backyard Ultra 4.16M Rio Linda, CA In the traditional style, runners will have one hour to complete each 4.16M loop. Each new loop will begin every hour on the hour.
03/28/2026 Boardwalk Fun Run 5K, 1K Santa Cruz, CA Lace up your shoes and join the fun with this family friendly race through the Santa Cruz Beach Boardwalk. Run, jog or walk along the course.
03/28/2026 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
03/28/2026 Doggie Dash 5K Redding, CA The Doggie Dash 5k Fun Run is a dog-friendly event perfect for the whole family!
03/28/2026 Folsom Lake Falcon Crest Trail Run 13.1M, 8M, 10K, 5K El Dorado Hills, CA TBD. This race is run in the beautiful, awesome foothills of El Dorado Hills. The courses are fast to run on - and lots of fun.
03/28/2026 Knickerbocker Canyon Trail Run 35K, 13.1M, 10K, 5K Auburn, CA Participants of this race will run the historic Western States Trail along the banks and canyons of the American River.
03/28/2026 UHC Foundation Summer Fun Run 10K, 5K Fresno, CA Get ready to lace up your sneakers! Join our community members and experience the thrill of the electrifying day at Woodward Park and make meaningful memories.
03/28/2026 Western Pacific Half Marathon 13.1M, 10K, 5K Fremont, CA All races start and finish at Quarry Lakes Recreation Area. The courses are mostly dirt/fire trail with a very small portion of pavement at the beginning and end.
03/28/2026 Zoom San Francisco 13.1M, 10K, 5K San Francisco, CA All races start and finish at Crissy Field and head west along the Golden Gate Promenade. All races offer spectacular and historic views of San Francisco.
03/29/2026 Golden State 5K 5K San Francisco, CA Lace up your running shoes! Thrive City and Mascot Sports are excited to announce this happening!

Did we miss any races? Please email us the race details (including web site URL) and you'll be entered in a monthly contest to win cool prizes. Race details should be sent to calendar@sweattracker.com