Race Calendar

Region:

December 2024

Date Event Distance Location Description
12/04/2024 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
12/07/2024 Bakersfield Rudolph Run 5K Bakersfield, CA A Bakersfield family tradition! Bring a partner and enjoy a fun morning of music and reindeer games.
12/07/2024 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
12/07/2024 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!
12/07/2024 High Desert 50K Ultra & 30K 50K, 30K Ridgecrest, CA Loop course over rolling desert terrain on jeep roads, single track trails, and sandy washes.
12/07/2024 Last 10K & Final 2 Mile 10K, 2M Santa Rosa, CA TBD.
12/07/2024 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.
12/07/2024 Midway Shelter Winter 5K 5K Alameda, CA Join us for another year of the Midway Shelter Winter run and walk.
12/07/2024 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.
12/07/2024 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.
12/07/2024 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.
12/07/2024 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.
12/08/2024 Baker Beach 5K 5K San Francisco, CA Upon exiting lower Baker Beach parking lot, immediately turn left on Battery Chamberlin Rd and run up to and through upper parking lot
12/08/2024 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.
12/08/2024 Hanukkah 8 Krazy Kilometers 8K, 2K Bakersfield, CA Runners, joggers and walkers of all ages are invited to the annual Hanukkah 8 Krazy Kilometers.
12/08/2024 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 (The Christmas Devil).
12/08/2024 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.
12/11/2024 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
12/14/2024 12Ks of Christmas 12K, 2M Redding, CA Both races will start at 9am from Lake Redding Park.
12/14/2024 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
12/14/2024 Clovis Rudolph Run 5K Clovis, CA Continue the newest family tradition! Bring friends and enjoy a fun morning of music and Reindeer Games!
12/14/2024 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.
12/14/2024 Jingle Bell 5K 5K Sausalito, CA TBD. Jingle Bell 5K and Brunch.
12/14/2024 Jingle Bell Run - Sacramento 5K Sacramento, CA Be part of the original festive race for charity and signature Arthritis Foundation holiday event! Wear your favorite holiday attire and together, we’ll jingle all the way to a cure!
12/14/2024 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.
12/14/2024 Modesto Spirit of Giving 5K 5K Modesto, CA TBD.
12/14/2024 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.
12/15/2024 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.
12/15/2024 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.
12/15/2024 Visalia Jingle Bell Run for Toys for Tots 2M Visalia, CA Run/Walk our 5k Timed course or enjoy our 2 Mile Walk non-timed course through Mooney Park.
12/18/2024 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
12/21/2024 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.
12/21/2024 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
12/21/2024 Woodside Ramble 50K, 35K, 13.1M, 10K Redwood City, CA Distances of 10K, Half Marathon, 35K and 50K make for the perfect proving grounds for runners, and hikers, of all abilities.
12/22/2024 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA Come join us at Lake Merritt for one of the East Bay's favorite races!
12/22/2024 Rainbow Falls Holiday 5K 5K San Francisco, CA Start/Finish: JFK & Transverse Drive, Golden Gate Park
12/24/2024 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.
12/25/2024 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
12/28/2024 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
12/29/2024 Windmill 10K 10K San Francisco, CA Start/Finish: JFK Drive & Dutch Windmill in Golden Gate Park
12/31/2024 New Year's One Day 24H, 100M, 12H, 6H San Francisco, 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 2025

Date Event Distance Location Description
01/01/2025 Clovis New Years Day 5K 5K, 2M Clovis, CA As the old year comes to a close, we welcome the New Year with hope and optimism! Join us for a 5K competitive run or a 5K fun run/walk!
01/01/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
01/04/2025 Byxbee Parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
01/04/2025 Hacienda Hills Run (Winter) 50K, 26.2M, 30K, 13.1M, 9M, 10K, 5K 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.
01/04/2025 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!
01/08/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
01/11/2025 Byxbee Parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
01/11/2025 Castle to Coast Fun Run 8.2M San Simeon, CA We are looking forward to seeing you at the start line for 8.2 miles of beautiful ocean views running on our well marked course.
01/11/2025 IPA Beer Run 12K, 5K Granite Beach, CA The IPA Trail Run features two courses, each with scenic lake views on well-marked single track trails.
01/11/2025 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.
01/11/2025 Salmon Falls Half & Full Marathon 26.2M, 13.1M Salmon Falls, CA Right from the start runners will begin climbing and descending hills. They will pass through native oak groves, open grass meadows and an overlook thick with manzanita.
01/12/2025 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!
01/15/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
01/18/2025 Byxbee Parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
01/18/2025 LLS Bertman 5K & 10K 10K, 5K Gold River, CA Join us for a fun run to raise crucial funds for Leukemia and Lymphoma Society (LLS) in honor of Bert Vicchio (Bertman). This is an out and back course on the American River Trail.
01/19/2025 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!
01/22/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
01/25/2025 Byxbee Parkrun 5k Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
01/25/2025 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.
01/25/2025 Fort Ord Trail Run 50K, 25K, 10K Monterey, CA Fort Ord was a U.S. Army post on Monterey Bay in California. This trail run is limited to 500 runners.
01/25/2025 Gumby 10K & 5K 10K, 5K Granite Bay, CA This race features a beautiful trail course along the shores of Folsom Lake. It has plenty of aid stations and cheering volunteers and is well-marked.
01/25/2025 Monterey Ultra 50M Monterey, CA At the Monterey Ultra you will run on just about every type of trail. The course consists of a 35 mile loop and a 15 mile loop with plenty of aid stations and beautiful views.
01/25/2025 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.
01/26/2025 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.
01/29/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.

February 2025

Date Event Distance Location Description
02/01/2025 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
02/01/2025 Cupid's Undie Run - San Francisco 1M San Francisco, CA Cupid’s Undie Run kicks off with drinking and dancing, then we jog it out with a mile(ish) run and end it all with an epic dance party!
02/01/2025 Death Valley Marathon 26.2M, 13.1M, 10K Death Valley, CA Enjoy an out-and-back relatively flat course. You'll admire the beauty of the surrounding desert as you follow this paved run through the heart of Death Valley National Park.
02/01/2025 Golden Gate Trail Run 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.
02/01/2025 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. The 30K, Trail Marathon, and 50K travel into the Sierra Azul Open Space Preserve.
02/01/2025 Superb Owl Run 5K, 2M Clovis, CA Celebrate football season with walkers, runners, football fans, and owl aficionados!
02/02/2025 Hensley Off Road Race 10K Fresno, CA Hensley Lake's Buck Ridge Trail has everything a rider and runner could want!
02/02/2025 Kaiser Permanente 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.
02/05/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/08/2025 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
02/08/2025 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.
02/12/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/15/2025 Bakersfield Coffee Run 10K, 5K, 2K Bakersfield, CA The run you have BEAN waiting for is here!
02/15/2025 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
02/15/2025 Fresno Valentine Run 5K, 2M Fresno, CA A family tradition since 2002!
02/15/2025 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.
02/19/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/22/2025 Beer City Half Marathon 13.1M, 10K, 5K Santa Rosa, CA Kick off Beer City Festival with a run along Santa Rosa Creek.
02/22/2025 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
02/22/2025 Lost Trail Half Marathon 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.
02/22/2025 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.
02/22/2025 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.
02/23/2025 Davis Stampede Half Marathon 13.1M, 10K, 5K, 2K Davis, CA The Davis Stampede takes place each year in February, and includes 5K, 10K and Half Marathon routes.
02/23/2025 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.
02/23/2025 Surfer's Path 10K/5K 10K, 5K Santa Cruz, CA The Surfer’s Path event offers both a 10k and 5k race, providing participants with an opportunity to engage in a scenic run or walk along the captivating coastline.
02/26/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.

March 2025

Date Event Distance Location Description
03/01/2025 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
03/01/2025 Pro Youth Color Run 5K, 2M Visalia, CA Come out and run in our 5K or bring the whole family and run, jog or dance your way through the 2 mile fun run.
03/01/2025 San Joaquin River Trail Half Marathon & 10K 13.1M, 10K, 5K Auberry, CA Come out and run some of the best local trails that will kick your butt. The courses are challenging with steep hills and rough terrain.
03/01/2025 Sanborn Trail Challenge 13.1M. 8M, 4M Saratoga, CA The course is 95% single track trail, extremely mountainous, very technical, lushly wooded with a mixed evergreen forest.
03/01/2025 Way Too Cool 50K Endurance Run 50K, 10M Cool, CA This race has become the most sought after 50K in the United States for veterans and novices alike.
03/02/2025 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’ awarded 13.1 miles, followed by the famed wine, beer & music festival.
03/02/2025 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.
03/05/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/08/2025 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
03/08/2025 Chanoko Trail Runs 50K, 31K, 5M Granite Bay, CA Participants have a choice of three distances.
03/08/2025 End of the Trail Run 13.1M, 10K Visalia, CA Courses are Flat & Fast.
03/08/2025 Fight for Air Climb TBD San Francisco, CA We've designed the Climb to accommodate every type of climber, whether you want to climb competitively, push yourself to the limit or just make it to the top at your own pace.
03/08/2025 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.
03/08/2025 Porterville 5K/10K Trail Run 10K, 5K Porterville, CA Join us for a 5K or 10K dirt path course that is out and back. We are hosting a 1/4 mile short course for little ones.
03/08/2025 Race to the Top of Mt. Umumhum 13.1M San Jose, CA This half marathon race is within two parks: Almaden Quicksilver Park and Sierra Azul Open Space Preserve. This course is point to point.
03/08/2025 Tony Bravo's Run for Your Life 13.1M, 6M, 3M Ridgecrest, CA Get ready to stretch your limits and touch hearts at Tony Bravo's annual race for substance abuse awareness!
03/09/2025 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.
03/12/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/15/2025 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
03/15/2025 Folsom South Side Trail Run 50K, 26.2M, 21M, 13.1M, 10K, 5K Folsom, CA All very appealing single track, great running, some technical sections.
03/15/2025 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.
03/15/2025 Ruck A Chuck 50K 50K Forest Hills, CA The Ruck A Chuck 50K is an exhilarating running event set in the picturesque landscape within the Sierra Nevada foothills.
03/15/2025 Shamrock'n 10K, 5K Sacramento, CA Celebrate St. Patrick’s Day with a Shamrock-themed Half Marathon, 10K, 5K and Fun Run!
03/15/2025 Spirit of Benny 10K/5K 10K, 5K Placerville, CA Please mark your calendars for Annual Spirit of Benny 10K/5K Fun Run. Details to follow in Fall 2024.
03/15/2025 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.
03/16/2025 Lucky Run 10K, 5K Novato, CA The Lucky Run is an annual event that benefits Safe & Sober Grad of Novato.
03/16/2025 San Jose Half & 8K 13.1M, 8K San Jose, CA We are taking the classic 408K with its unique Mariachi Mile and Santana Row finish line and welcoming participants tackling the Half Marathon to this exciting experience.
03/16/2025 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.
03/16/2025 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.....
03/19/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/22/2025 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.
03/22/2025 Bakersfield Donut Run 5K Bakersfield, CA Run or walk and show your passion for donuts, get out there with your friends and family on our 5k Timed or 2k non-timed courses and earn those delicious Donuts!
03/22/2025 Big Alta 50K 50K, 28K Marinwood, CA The Big Alta 50K course is an amazing single-loop race route, offering extensive scenic views along some of the highest points in all of Marin County.
03/22/2025 Byxbee parkrun 5K Palo Alto, CA Byxbee parkrun takes place every Saturday at 8:00am.
03/22/2025 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.
03/22/2025 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.
03/22/2025 Mighty Dog Trail Runs 10K, 5K Granite Bay, CA This event offers two distances: 5K and 10K - both for walkers, runners and their dodgs!
03/22/2025 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.
03/22/2025 Redwood Trail Run Spring 50K, 26.2M, 30K, 13.1M, 5M Oakland, CA The course travels through beautiful Redwood Regional Park.
03/22/2025 South Hills Single Track Trail Run 50K, 26.2M, 16M, 13.1M, 9M ,10K, 5K San Jose, CA Beginning at Calero County Park, this trail run has everything! Experience awesome single track, great hills and dirt paths.
03/23/2025 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.
03/23/2025 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.
03/23/2025 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.
03/23/2025 Running of the Elk 10K, 5K Elk Grove, CA Welcome to the Annual Running of the Elk! All runs start and finish at Destrict 56 in the heart of Elk Grove.
03/23/2025 Viansa Wine Run 5K 5K Sonoma, CA Like Running or Walking? Love Wine? This race is for you!
03/26/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido.
03/29/2025 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.
03/29/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
03/29/2025 Folsom Lake Falcon Crest Trail Run 13.1M, 15K, 10K, 5K El Dorado Hills, CA This race is run in the beautiful awesome foothills of El Dorado Hills. This area has incredible oak trees, green grass and is loaded with single track trails paralleling Folsom Lake.
03/29/2025 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.
03/29/2025 The Lucky Run 10K, 7K, 5K, 2.1K Davis, CA The Lucky Run is a March race celebrating the start of spring. Loop courses travel along city streets, along bike paths and through residential neighborhoods.
03/30/2025 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.
03/30/2025 Lag Bon 10K 10K Fairfax, CA A trail running fundraiser dedicated to World Water Day.
03/30/2025 Wildflower Run 10K, 5K, 2M Morgan Hill, CA Come run with us! We are delighted each year to have volunteer entertainers along the routes to provide entertainment.

April 2025

Date Event Distance Location Description
04/02/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido.
04/05/2025 American River 50 Mile Endurance Run 50M, 25M Folsom, CA American River has become the second largest 50 miler in the United States.
04/05/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
04/05/2025 Diablo Trails Challenge 50K, 13.1M, 10K, 5K Walnut Creek, CA With distances suitable for everyone from those hitting the trails for the first time to experienced ultra-runners, the Diablo Trails Challenge was created to help celebrate.
04/05/2025 Golden Gate Headlands Marathon 26.2M, 13.1M, 10K Mill Valley, CA The course is a combination of single track hiking trails and fire roads.
04/05/2025 Ruth McKenzie Preserve Half Marathon 13.1M, 10K, 5K Friant, CA The Ruth McKenzie Table Mountain Preserve is located between Friant and Prather, on the north side of Auberry Road.
04/05/2025 Santa Teresa King Richard Trail Run 13.1M, 10M, 10K, 5K San Jose, CA Santa Teresa County Park is located in the Santa Teresa Hills, ten miles south of downtown San Jose.
04/05/2025 SEAS 5K Running for Faith to Build Our Future 5K Bakersfield, CA “Running for Faith to Build our Future” is a Fun Run 5k hosted by the MOMS at SEAS ministry of St. Elizabeth Ann Seton Catholic Church benefiting the church’s Building Fund.
04/05/2025 The Firehouse Run 10K, 5K Santa Clara, CA The Firehouse Run is a community 5K walk or run located at Mission College in Santa Clara, CA.
04/06/2025 Annadel Half Marathon 13.1M, 10K, 5K Santa Rosa, CA The Annadel Half Marathon is a non-profit fundraising event. Over the past 14 years, we have raised funds to make the park a more beautiful place for all to enjoy!
04/06/2025 Credit Union SACTOWN 10 Mile Run 10M, 5K, 1M Sacramento, CA The Credit Union SACTOWN run continues to be a force for good in our community.
04/09/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido.
04/12/2025 Autism on the Run 10K, 5K, 2K Bakersfield, CA We are excited to announce Autism on the Run at the Park at Riverwalk In Bakersfield we will have a 10k, 5k, 2k, and family walk.
04/12/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
04/12/2025 California Classic Half Marathon 13.1M, 10K, 5K Fresno, CA Join us when we host 2,000 runners in our Half Marathon, 10k and 5k Run as participants run through Sea Lion Cove with a grand finish at Chukchansi Stadium.
04/12/2025 California Gold Rush Run 15K, 10K, 5K Coloma, CA Run entirely inside the Marshall Gold Discovery State Historic Park, set in the beautiful foothills of Coloma along the south fork of the American River.
04/12/2025 Fiercelifit Half Marathon & 10K/5K 13.1M, 10K, 5K Fremont, CA One of the most significant and yet often overlooked landmarks of Fremont is the mighty Dumbarton.
04/12/2025 Lake Sonoma 50 50M, 26.2M, 13.1M Healdsburg, CA All of the courses boast of “relentless” rolling hills surrounding beautiful Lake Sonoma.
04/12/2025 Placer Trail Running Festival 50K, 25K, 10K, 5K Pilot Hill, CA All of it is very runnable with a mix of single track and double wide trails.
04/12/2025 Rodeo Beach Rumble 13.1M, 8K Sausalito, CA So close to San Francisco and the Golden Gate Bridge yet a world apart, the hills, valleys and beaches of the Golden Gate National Recreation Area are the perfect place for a race!
04/12/2025 Romancing the Island Half 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.
04/12/2025 Silver Moon Race 100M Reedley, CA How many laps can you run in 6, 12, or 24-hours? Test your endurance and build up your distance in a 2-mile lap race, or go for the 100-mile distance.
04/12/2025 SPASM Lake Chabot 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. Great course for first-time trail runners!
04/13/2025 Napa Valley Endurance Run 50K, 35K, 13.1M Calistoga, CA Join us for the Napa Valley Endurance Run, three events run in glorious Robert Louis Stevenson State Park, which starts and finishes at Logvy Park in downtown Calistoga.
04/16/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido.
04/19/2025 Antioch Rotary Club Bunny Hop 5K 5K Antioch, CA This coming year we invite participants to run like the Hare or pace yourself steady to victory like the Tortoise.
04/19/2025 Badger Cove Half Marathon 13.1M, 10K, 5K Livermore, CA Join us for a run (or walk) in the emerald hills of Lake Del Valle.
04/19/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
04/19/2025 Sierra Azul Trail Challenge 50M, 26.2M, 20M, 13.1M, 7M, 5K Los Gatos, CA Set in the Sierra Azul Open Space Preserve, this one of a kind running event provides unique access to gorgeous trails and scenery not commonly viewed. 100% trail/fire road.
04/20/2025 Horseshoe Lake Trail Run 50K, 26.2M, 30K, 13.1M, 5M Palo Alto, CA The course is within Skyline Ridge, Long Ridge and Russian Ridge Open Space Preserves. Be prepared for spectacular views of the Pacific Ocean and the Santa Cruz Mountains.
04/20/2025 Merced River Canyon Run 9M, 5M Briceburg, CA Mariposa county's classic Merced River Canyon Race returns this year with two options for runners.
04/23/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
04/25/2025 Canyons Endurance Runs 100M Foresthill, CA Starts in the historic gold-rush town of Auburn, birthplace of mountain ultras, located in the northern California foothills of the Sierra Nevada range.
04/26/2025 American River Parkway Half Marathon 13.1M, 5K Sacramento, CA The Parkway Half Marathon has been an annual spring-time tradition for runners and walkers in the Sacramento region for 18 years!
04/26/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock. Every Saturday at 8:00am.
04/26/2025 Canyons Endurance Runs 100K, 50K Foresthill, CA Canyons 100K distance is a Western States 100 Golden Ticket race where the top two female and male finishers earn direct entry to the Western States 100.
04/26/2025 Chocolicious 5K/15K 15K, 5K, 2M Fresno, CA Welcome to the Chocolicious 15k, 5k and 2 Mile Run/Walk! Run or Walk one of our three courses and EARN the right to have your chocolate and eat it too!
04/26/2025 Empower Wellness Run 5K 5K, 1M Bakersfield, CA Run, walk, or crawl, everyone is welcome. Choose between 5k or the 1 mile.
04/26/2025 Mt. Tam Wild Boar Half Marathon 13.1M, 10K Mill Valley, CA Parts of this course include very narrow trails with steep drop-offs. The event is limited to 300 participants so don't wait too long to register!
04/26/2025 Mud Factor - Bakersfield 5K Bakersfield, CA 5K obstacle run.
04/26/2025 Nail the Rail Half Marathon, 10K & 5K 13.1M, 10K, 5K Shasta Lake, CA Join us for a stroll along the Sacramento Rail Trail.
04/27/2025 Big Sur International Marathon 26.2M, 21M, 11M, 12K, 5K Big Sur, CA The course is from Big Sur to Carmel on scenic Highway 1, the nation's first nationally-designated Scenic Highway. The course is USATF certified and is an official Boston qualifier.
04/27/2025 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA Every month except February, March, and June.
04/27/2025 Mud Factor - Fresno 5K Sanger, CA 5k obstacle run.
04/27/2025 Napa Valley Women's Half Marathon 13.1M, 5K Napa, CA From walkers to runners, everyone can find their place at the Napa Women’s Half Marathon and 5K!
04/27/2025 Surfer's Path Half Marathon 13.1M Santa Cruz, CA This 13.1 mile Half Marathon features breathtaking views of the Monterey Bay coastline and a series of world renowned surf breaks.
04/30/2025 Fog City Run 5K San Francisco, CA The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio.

May 2025

Date Event Distance Location Description
05/03/2025 Big Climb San Francisco Stair Climb San Francisco, CA Step up to take cancer down! To create a world without blood cancers, every step counts. You are helping to change lives!
05/03/2025 Byxbee Park Run 5K Palo Alto, CA Byxbee Parkrun is a free, fun and friendly weekly 5K community event. The run starts at 8am.
05/03/2025 Folsom Lake Trail Run 50K, 35K, 13.1M, 10K Folsom, CA The Folsom Lake Trail Run uses the lake-side trails that meander around much of the 75miles of lake shore.
05/03/2025 Hacienda Hills Run 50K, 26.2M, 30K, 13.1M, 9M, 10K, 5K San Jose, CA This event is located just outside San Jose at the Alameda Quicksilver Park. Prepare yourself for a spectacular day of California Trail running in the Hacienda Hills.
05/03/2025 Kerman Almond Festival Scholarship Fun Run 5K Kerman, CA All family members are invited to join the fun! The fun includes a festival with live entertainment, food vendors, Almond Baking Contest and wine tasting.
05/03/2025 Miwok 100K 100K Stinson Beach, CA The Miwok 100K is one of the most beautiful and inconic trail ultramarthons in the world. The race is very competetive at the front and a rewarding challenge for all.
05/03/2025 Silva Strong Superhero 5K 5K Mendota, CA Enjoy a 5K Run/Walk around the Western area of the City of Mendota in honor and memory of the late Mayor Robert Silva.
05/04/2025 Angwin to Angwish Trail Run 26K, 10K, 1M Angwin, CA Set in the richly forested trails of Napa Valley's Pacific Union College, Angwin to Angwish is a trail run offering incredible natural scenery and challenging courses.
05/04/2025 Avenue of the Giants 26.2M, 13.1M, 10K Weott,CA The Avenue of the Giants is staged in the Humboldt Redwoods State Park. The paved course winds through giant old growth Redwoods.
05/04/2025 Aztec Run 5K Oakland, CA The Spanish Speaking Citizens' Foundation (SSCF) is pleased to bring you this fun-filled, family-friendly event to lift spirits and build community in celebration of Dia de los Muertos.
05/04/2025 Bay Bridge Half Marathon 13.1M Oakland, CA Welcome to the only event across the Bay Bridge. We are focused on a mission to bring you a one-of-a-kind, fresh experience to our hometown.
05/04/2025 Beer City Half Sacramento 13.1M, 10K, 5K, 1M West Sacramento, CA Join us along with Drake's Brewing Company at the Barn as we kick off Beer City Sacramento with a run along the Riverfront, through old Sac.
05/04/2025 Devil Mountain Run 10K, 5K, 1M Danville, CA This is one of the Bay Area's oldest running traditions in Downtown Danville the first Saturday in May.
05/04/2025 The Grand Climb 5K Fresno, CA The Grand Climb awaits you! Are you up for the challenge? This events starts inside Chukchansi Park Stadium and finishes at the top of a 10-story building, The Grand Tower.
05/04/2025 Windsor Half Marathon 13.1M, 10K, 5K Windsor, CA Windsor Run and Wine is the most memorable race and post race festival in California!
05/07/2025 Fog City Run 5K SanFrancisco, CA The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio.
05/10/2025 Bubble Run - Oakland 5K Oakland, CA Enjoy good, clean, fun at Bubble Run. You will be showered with colorful, fluffy foam as you navigate through four colorful bubble cannon stations.
05/10/2025 Byxbee Park Run 5K Palo Alto, CA Byxbee Parkrun is a free, fun and friendly weekly 5K community event. The run starts at 8am.
05/10/2025 Girls on the Run 5K 5K San Leandro, CA Each season comes to an end with a celebratory 5K.
05/10/2025 Grizzly Peak Trail Run 50K, 26.2M, 30K, 13.1M, 10K Berkeley, CA The run starts at Lake Anza and travels through the beautiful and popular Tilden Park in the Berkeley Hills. T-shirts will be given to all pre-registered runners.
05/10/2025 Muir Woods Marathon 26.2M, 13.1M, 7M Stinson Beach, CA Mt. Tamalpais is a treasure trove of pristine trails. The course is on the best single track the mountain has to offer with some of the most beautiful mileage you will ever run.
05/10/2025 Nitro Trail Half Marathon 13.1M, 10K, 5K San Pablo, CA The original Brazen Racing event, Nitro Trail was the race that started it all! A dynamite race experience awaits!
05/10/2025 Paiute Meadows Trail Run 50K, 30K, 13.1M, 4.5M, 1M Susanville, CA Join us at Susanville Ranch Park as we showcase the region's premiere trail system.
05/10/2025 Quicksilver 100K and 50K 100K, 50K San Jose, CA The Quicksilver 100k race is a Western States 100 Mile Endurance Run qualifier!
05/10/2025 Race For Open Space 35K, 25K, 12K, 1M Monterey, CA A fundraiser and awareness campaign to support Big Sur Land Trust and access to parks and open spaces.
05/10/2025 She.is.beautiful 5K & 10K 10K, 5K Santa Cruz, CA We believe creating a stronger self mentally and physically manifests into a stronger self in all areas of your life. Let's move through this journey together.
05/10/2025 Sly Park Lake Trail Run 50K, 26.2M, 18M, 13.1M, 8.5M, 10K, 5K Pollack Pines, CA TBD. The run around Sly Park Lake is a challenging course but no big climbs or long downhills. The trail goes through endless pine trees and is one of the best kept secrets in the Sierra.
05/10/2025 Stinson Beach Half Marathon 13.1M, 7M Stinson Beach, CA
05/10/2025 Wildcat Prowl 5K 5K Woodside, CA The Wildcat Prowl 5K is a fun, inclusive, community - and spirit - building fundraiser for the whole family and beyond!
05/10/2025 Willow Glen 5K 5K San Jose, CA Join us for the Willow Glen 5K Run/Walk for Education.
05/10/2025 Yosemite Half Marathon 13.1M Bass Lake, CA The course includes rough terrain, fast downhill descent on a beautiful paved road and around Bass Lake.
05/11/2025 Bakersfield Mother's Day Run 5K Bakersfield, CA Please join us to celebrate the special ladies in our lives as we recognize all of our "SUPER MOMS" out there!
05/11/2025 Mother's Day 5K/10K 10K, 5K Alameda, CA Moms sign yourself up. Get your family to come and cheer you on or leave everyone at home!
05/14/2025 Fog City Run 5K San Francisco, CA The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio.
05/17/2025 13 Mile Trail Race Top Down 13.1M San Jose, CA The course is point to point. It will be marked with single solid PINK color ribbons tied to clothespins, ORANGE cones, signs and gypsum.
05/17/2025 Bishop High Sierra Ultras 100K, 50M, 55K, 20M, 6K Bishop, CA These are high altitude races, with lots of climbing, in the scenic foothills of the Eastern Sierra Nevada.
05/17/2025 Byxbee Park Run 5K Palo Alto, CA Byxbee Parkrun is a free, fun and friendly weekly 5K community event. The run starts at 8am. Please come along and join us whatever your pace!
05/17/2025 Campus Life 5K 5K Fresno, CA This 5k + Kids Fun Run is for the whole family to enjoy!
05/17/2025 Girls on the Run - Silicon Valley 5K Los Gatos, CA Join us for our 5K Celebration at Vasona Park. Our event is about accomplishing a goal and is not timed!
05/17/2025 Leigh Longhorn Stampede 5K San Jose, CA Join us for a 5K event through Cambrian neighborhood. Whether you are a walker , a casual jogger, distance runner or just want to cheer on the participants come be a part of our community.
05/17/2025 Luc's Run 10K, 2M Tuolumne, CA The scenic race route starts in a community of cheering local residents and proceeds through peaceful pastures with a challenging uphill climb through the historic streets of Tuolumne city.
05/17/2025 Mud Factor - Sacramento 5K Sacramento, CA The Mud Factor is a seriously fun 5K Obstacle Run! Giant Cargo Climbs, Water Slides, Epic Mud Crawls and Kidz Family Waves, too!
05/17/2025 Napa Wilderness Trail Runs 40M, 50K, 30K, 13.1M, 10K Napa, CA Napa Wilderness Trail Runs at Skyline Park will offer a wide range of trail runs from Ultra distance to a 10k for new trail runners or folks just getting back to the trails.
05/17/2025 Pacifica Foothillls Trail Run 30K, 113.1M, 10K Pacifica, CA This event takes place in the San Pedro Valley Park in the surf town of Pacifica. It offers acres and acres of coastal mountain environment.
05/17/2025 Run for Amma 50K, 30K, 10K Los Gatos, CA The Run for Amma is an annual event to help raise awareness and money to aid in cutting edge research and treatments for cancer.
05/17/2025 Trail Quake Half Marathon 13.1M, 10K, 5K Saratoga, CA The woods are calling! Run through the Redwoods and Pines and say hello to banana slugs! Put you ear to the ground and you can hear distant rumbling.
05/21/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
05/24/2025 Armed Forces Half Marathon 13.1M Concord, CA Runners will get an incredible panoramic view of the installation. This part of the course up until now has been strictly off-limits to civilians.
05/24/2025 Byxbee Park Run 5K Palo Alto, CA Byxbee Parkrun is a free, fun and friendly weekly 5K community event. The run starts at 8am. Please come along and join us whatever your pace!
05/24/2025 Modesto Memorial Classic 5K, 1M Modesto, CA Both courses are scenic, shady loops and are walker friendly. Bring the kids along for the FREE kid's fun run. Pancake breakfast included with paid registration
05/24/2025 Placerville Path Memorial Day Run 13.1M, 15K, 10K, 5K Placerville, CA This race on the El Dorado Trail in Placerville is held rain or shine. The path is surrounded with beautiful oak trees, rolling hills and incredible views.
05/24/2025 Western States Memorial Weekend Training Runs 70M Over the Memorial Day weekend Western States offers three training runs to acquaint runners with the last 70 miles of the Western States course.
05/25/2025 LMJS 4th Sunday Runs 15K, 10K, 5K Oakland, CA Distances offered at these races are 5K (once around the lake), 10K (twice around the lake) and 15K (three times around the lake).
05/25/2025 Tilden Tough Ten 10M Berkeley, CA Get ready for the race of a lifetime! A fun and challenging ten mile race in the beautiful Tilden Regional Park that'll test your mettle on both road and trail, with some real lung busting hills.
05/27/2025 Yosemite Valley Views 6 Day Stage 90M Yosemite, CA There is no better way for an endurance athlete to experience what this wilderness park has to offer.
05/28/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
05/31/2025 Bakersfield Hot Fudge Sundae Run 5K 5K Bakersfield, CA Run a 5K or walk our 2K and earn your hot fudge sundae. Want a little more fun? Join or create a Sundae Team!
05/31/2025 Beer City Half 13.1M, 10K, 5K San Jose, CA Join us at Almaden Lake Park for a running and beer celebration with fine regional beers and kombucha to taste at the finish.
05/31/2025 Big River Adventure 10K, 5K Mendocino, CA Join us for a unique race experience where you can choose your adventure to run, swim, walk, or paddle your way through the scenic beauty of Mendocino County's Big River.
05/31/2025 Byxbee parkrun 5K Palo Alto, CA Every Saturday at 8:00am.
05/31/2025 Calero Trail Run 50K, 25K, 13.1M, 15K, 10K, 5K San Jose, CA Beginning at Calero County Park, this trail run has everything! Experience awesome single track, great hills, and dirt paths.
05/31/2025 Monterey Spartan Super 10K 10K Salinas, CA There’s nothing mediocre about this middle distance race. The Spartan Super offers the ideal blend between distance and speed.
05/31/2025 Rainbow Run 5K 5K Visalia, CA Celebrate Pride Month with the Rainbow Run presented by The Source LGBT+ Center! Join forces with family, friends and colleagues to amplify the fun and impact of the Rainbow Run.
05/31/2025 San Jose Half Marathon 13.1M, 8K San Jose, CA Enjoy a flat and fast half marathon course or an 8K, with both courses including the Mariachi Mile!
05/31/2025 Sonoma Coast Trail Run 50K, 26.2M, 30K, 13.1M Duncan Mills, CA Presented by SkyBreaker Racing, Sonoma Coast Trail Runs take place on the beautiful trails and fire roads of Sonoma Coast State Park on Northern California's beautiful coastline.
05/31/2025 Wildcat Half Marathon 13.1M, 10K, 5K El Sobrante, CA Plan your weekend and pack your camera! Hills and more hills! Views of San Francisco, the Golden Gate Bridge, Alcatraz, Mount Tamalpais, the Bay and the ocean await you!