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Race Calendar

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August 2025

Date Event Distance Location Description
08/02/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock.
08/02/2025 Guadalupe River Find-Your-Way 5K, 10K 10K, 5K San Jose, CA Choose between a 5K and 10K challenge where you find up to 30 checkpoints.
08/02/2025 Hell of a Half Marathon 13.1M Exeter, CA Yes the course is challenging, the weather is hot, but what else would you expect at The Hell of Half Marathon?
08/02/2025 Point Mariah Trail Marathon 26.2M Soda Springs, CA Point Mariah offers expansive views of the Granite Chief Wilderness, the Pacific Crest Trail.
08/02/2025 Summer Breeze Half Marathon 13.1M, 10K, 5K San Leandro, CA Starting in the San Leandro Marina and running along the shoreline of the San Francisco Bay, you can expect great views and, with any luck, a gentle breeze to keep you cool.
08/02/2025 Susan B Anthony Women's 5K 5K Sacramento, CA Founded in 1976, the Susan B. Anthony (SBA) 5k offers something for both competitive and casual runners alike.
08/02/2025 Truckee Half Marathon 13.1M, 5K Truckee, CA This Truckee Running event showcases the diverse beauty of sierra landscapes and gives runners a taste of our wonderful mountain town.
08/03/2025 Golden Gate Double 8K 8K, 5K, 3K San Francisco, CA It offers unparalleled views of the Golden Gate Bridge for more than 80% of the course!
08/03/2025 Salmon Creek Beach Run 5M, 2M Salmon Creek State Beach, CA Post race picnicking encouraged (but no services or supplies will be provided).
08/03/2025 Skyline 50K 50K, 13.1M Castro Valley, CA Skyline is known as a great race for first-timers.
08/05/2025 Sunset Through the Trees Fun Runs 4M, 2.5M Redding, CA TBD. Race registration only at race day site.
08/06/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
08/07/2025 Redwoods 100-Mile Challenge 100M Camp Jones Gulch, CA All-Inclusive, 4-night endurance challenge in Santa Cruz Mountains redwoods
08/09/2025 Alameda 10 Miler 10M Alameda, CA We are combining forces with Outfront Endurance and Island Running Festival to bring you a full slate of events.
08/09/2025 Bear Creek 13.1M, 10K, 5K Lafayette, CA If you are looking for a super-fast, flat, easy course to set a personal record, you are probably in the wrong place.
08/09/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock.
08/09/2025 Marlette Lake Tahoe 50K, 10M Lake Tahoe, CA The Marlette 50K is a truly adventurous romp through some of planet earths most scenic and challenging trails.
08/09/2025 Mt. Madonna Challenge 13.1M, 10K, 5K Gilroy, CA Join us for an exhilarating charity run that fuels dreams and empowers young athletes!
08/09/2025 Wicked Wine Run - Sacramento 5K Elk Grove, CA Join Wicked Wine Run at this beautifully renovated and scenic ranch in Sacramento.
08/10/2025 City Beer Runs - Laughing Monk 5K, 10K San Francisco, CA Join us at our newest brewery partner, Laughing Monk! All of our runs start at a local brew house and work their way through city streets before ending back at the host watering hole for a post run social and raffle! Save $5 with coupon code SWEAT.
08/10/2025 Humboldt Bay Marathon 26.2M, 13.1M, 5K, 1M Eureka, CA The Humboldt Bay Area combines spectacular scenery with the perfect climate for year-round running.
08/10/2025 SAR Wild Run 13.1M, 10K, 5K Shaver Lake, CA Join the hundreds of people supporting Fresno County Search and Rescue with a race in the beautiful Sierra Nevada mountain range.
08/12/2025 Sunset Through the Trees Fun Runs 4M, 2.4M Redding, CA TBD. Race registration only at race day site.
08/13/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
08/16/2025 Almaden Hills Trail Run 50K, 26.2M, 13.1M, 8M, 10K, 5K San Jose, CA Set in Almaden Quicksilver park. Run in the beautiful hills of Almaden Valley.
08/16/2025 Byxbee parkrun 5K Palo Alto, CA It is a 5km run - it's you against the clock.
08/16/2025 Red Wave 5K 5K , 1.5M Fresno, CA The Red Wave 5k and 1.5mi run is a fundraising event to benefit Red Wave Indoor percussion.
08/16/2025 Redwood (Summer) Trail Run 50K, 26.2M, 30K, 13.1M, 5M Oakland, CA The course travels through beautiful Redwood Regional Park. Enjoy the spectacular views along the East Ridge and West Ridge trails and wind through tall redwoods.
08/16/2025 Tamalpa Headlands 50K 50K Muir Beach, CA Tamalpa Headlands 50k is a demanding ultramarathon with approximately 6,500-feet of elevation gain.
08/19/2025 Sunset Through the Trees Fun Runs 5.5M, 2M Redding, CA TBD. Race registration only at race day site.
08/20/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
08/23/2025 Angel Island 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.
08/23/2025 Byxbee parkrun 5K Palo Alto, CA TBD. It is a 5km run - it's you against the clock.
08/23/2025 Moonlight Madness 2M Shasta Lake, CA 2-Mile run/walk across Shasta Dam via the moonlight.
08/23/2025 Race for the Arts 5K Sacramento, CA Come out for the Race and stay for the Free Arts Festival, featuring: 5K Run/Walk and Kids Fun Runs.
08/23/2025 Santa Rosa Marathon - 10K/5K 10K, 5K Santa Rosa, CA Join thousands of runners across four race distances and experience the pastoral beauty of late summer in Sonoma County.
08/23/2025 Trail Run at Sly Park 50K, 26.2M, 17M, 13.1M, 8M, 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.
08/23/2025 Walt Stack DSE Double Dipsea 13.7M Stinson Beach, CA First held in 1970, the Walt Stack DSE Double Dipsea is a not just another tough trail run. It's a sadistically designed race, intended to test your patience and perseverance.
08/23/2025 We Run Oakland: For Our Children 5K Oakland, CA Join DO & A Sista's Touch for our annual charity, 5K, to raise Human Trafficking Awareness.
08/24/2025 Good Dog - Dirty Dog 5K/10K 10K, 5K Granite Bay, CA This event is for walkers, runners, and their dogs! We are excited to offer this event for athletes and their dogs and hope everyone has a fun time.
08/24/2025 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA Fourth Sunday run.
08/24/2025 Santa Rosa Marathon 26.2M, 13.1M Santa Rosa, CA Treat yourself to scenic miles through dazzling vineyards and pastoral beauty along mostly flat courses in beautiful Sonoma County!
08/26/2025 Sunset Through the Trees Fun Runs 4.3M, 2M Redding, CA TBD. Race registration only at race day site.
08/27/2025 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
08/30/2025 Bubble Run - Sacramento 5K Sacramento, CA Participants run, walk, dance and play across 3 miles rad real estate. Foam Bogs of colored suds are encountered along the course.
08/30/2025 Byxbee Park Run 5K Palo Alto, CA A free, fun and friendly weekly 5K community event. Walk, jog or run. We all participate for our own enjoyment. Please come along and join whatever your pace.
08/31/2025 Crystal Springs Run 50K, 26.2M, 35K, 13.1M, 8K Woodside, CA Experience the towering redwoods, lush ferns and beautiful trails through Hubbart Park, King's Mountain and Bear Gulch.

September 2025

Date Event Distance Location Description
09/01/2025 Davis Labor Day Run 10K, 5K, 1M Davis, CA Make plans to kick off your Labor Day with a run or walk at our annual event. Entry includes a t-shirt, finisher medal and post-race pancakes.
09/03/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5K (ish) route through the Marina neighborhood and the Presidio.
09/06/2025 BT5K - Northern California 5K Oakland, CA Run, walk or just join in the festivities!
09/06/2025 Byxbee Park Run 5K Palo Alto, CA A free, fun and friendly weekly 5K community event. Walk, jog or run. We all participate for our own enjoyment. Please come along and join whatever your pace.
09/06/2025 China Peak Running Festival 100K, 50K, 25K, 10K Lakeshore, CA Join us in the Western Sierra Range for an ultra mountain trail run. This is a big time race course that will satisfy runners of every level.
09/06/2025 Emerald Bay Trail Run 12K Lake Tahoe, CA Join us for "one of America's most scenic trail runs"
09/06/2025 LSA's Run Home 10K, 5K Los Gatos, CA Life Services Alternatives provide exceptional community living and programs for adults with developmental disabilities.
09/06/2025 Mendocino Running Festival 12H, 6H, 13.1M, 10K Mendocino, CA A full weekend of fun awaits runners of all distances, along with plenty of activities for the entire family.
09/06/2025 Run to Remember 5K, 1M Clovis, CA This event was established in honor and remembrance of the 2,977 people lost in the horrific 9/11 terrorist attack.
09/06/2025 Stevens Creek Striders Reservoir Run 13.1M, 11K, 2.5M Cupertino, CA This run is a wonderful introduction to trail running, yet it promises to be challenging enough for the most experienced trail and ultra trail runners.
09/06/2025 Tanri Lake Race 10H Miramonte, CA Enter either as an individual or a relay team of three runners. The 10 hour individual race lets runners complete as many 5 mile laps around Lake Sequoia as possible.
09/07/2025 Annadel Loop 6.8M Annadel State Park, CA The Annadel Loop is a 6.75 mile run sponsored by the Empire Running Club. This is a challenging loop in the hills of Annadel State Park.
09/07/2025 Berkeley Mapathon and Half 26.2M, 13.1M Berkeley, CA Enjoy amazing highlights and lesser known secrets of Berkeley in an epic way - a Mapathon!
09/07/2025 Cancer Champions Run/Wallk 10K, 5K, 1M West Sacramento, CA Choose your distance and please join us!
09/07/2025 Diablo Trail Race 50K, 26.2M, 13.1M, 10M, 4M Clayton, CA Mount Diablo provides spectacular views of San Francisco Bay Area and surrounding valleys. The longer events are mountainous and very scenic.
09/07/2025 Diplos Run Club 10K 10K San Francisco, CA Sign up now, grab your gear and join hundreds of enthusiasts in a celebration of health, happiness and the sheer joy of being active.
09/07/2025 Fiesta 10K 10K, 1M Fresno, CA Come and celebrate Mexican Independence Day at this unique event! Challenge yourself and do a DOUBLE RUN!! Yes, do the MILE followed by the 10K.
09/07/2025 Mammoth Bar Trail Runs 13.1M, 10K, 5K Auburn, CA Mammoth Bar is known for its steep climbs and descents as well as its beautiful American River Canyon views. These are not your average courses.
09/10/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5K (ish) route through the Marina neighborhood and the Presidio.
09/12/2025 Mammoth BUFF - Beer Mile Run 1M Mammoth Lakes, CA In honor of what was once Oktoberfest's Beer Run, we now host our own beer run to keep the party going.
09/13/2025 Berkeley Trail Adventure 50K, 35K, 13.1M, 10K Berkeley, CA Our Berkeley Adventure Run brings runners and walkers into two East Bay gems. Fabulous for all runners and even for those embarking on their first trail running event.
09/13/2025 Byxbee Park Run 5K Palo Alto, CA A free, fun and friendly weekly 5K community event. Walk, jog or run. We all participate for our own enjoyment.
09/13/2025 Donate Life Run/Walk 10K, 5K San Ramon, CA Together, we can save and heal more lives! One by one, together, we have the power to give hope to the men, women and children waiting for a second chance at life.
09/13/2025 Hedgehog Dash 13.1M, 10K, 5K Sacramento, CA Get ready for a unique experience at the Hedge Hog Dash in the vibrant city of Sacramento!
09/13/2025 Hedgehog Dash 13.1M, 10K, 5K San Francisco, CA Get ready for a unique experience at the Hedge Hog Dash in the vibrant city of San Francisco!
09/13/2025 National Chocolate Day: Run for Chocolate - San Francisco 26.2M, 10K, 5K, 1M San Francisco, CA Get ready to indulge in a sweet celebration! This event is tailor-made for chocolate lovers of all ages and fitness levels.
09/13/2025 National Chocolate Day: Run for Chocolate -Sacramento 26.2M, 10K, 5K, 1M Sacramento, CA Get ready to indulge in a sweet celebration! This event is tailor-made for chocolate lovers of all ages and fitness levels.
09/13/2025 Pincushion Hill Climb 1M Friant, Ca 1 Mile! Straight Up! This will be a chip timed hill climb starting at the San Joaquin River Trailhead and finishing at the top of Pincushion Mountain.
09/13/2025 Running Fence Run - A Celebration of Freedom and Democracy 10K Cotati, CA This is more than just a race, it's a celebration of : the enduring spirit of democracy, artistic expression, physical achievement and unity and rememberance.
09/13/2025 South Hills Single Track Trail Run - Fall 50K, 26.2M, 16M, 13.1M, 9M, 10K, 5K, 1M San Jose, CA Our mission is to provide the most scenic, challenging and fun runs in California. Come run the Miner's Ghost Town and we promise you won't be disappointed!
09/13/2025 Stevens Creek Striders Saturday Run 5M to 13M Cupertino, CA We meet every Saturday at 8:30 am at the Reservoir Parking Lot for a run, often followed by brunch.
09/13/2025 XTERRA Lake Tahoe 5K/10K 10K, 5K Tahoe, CA Hit the dirt in this classic trail run, loop a beautiful trail system featuring tall pines, aspen groves and creek crossings.
09/13/2025 ZERO Prostate Cancer Run/Walk - Napa 5K, 1M Napa, CA We are #ZERO Strong Together! Register and start fundraising today to support prostate cancer patients and families!
09/14/2025 Buffalo Stampede 10M, 4M Sacramento, CA The Buffalo Stampede 10-Mile Run/Walk, the race that kicked off Sacramento’s road-racing tradition, is over forty years old!
09/14/2025 Honey Badger Half Marathon 13.1M, 10K, 5K Santa Venetia, CA The Badger's race takes place in China Lake State Park in Santa Venetia. Sign up now to receive your AWESOME race "woodallion" AND Lifestyle tee.
09/14/2025 One Mile 4 One Child Charity Run 10K, 5K, 1M San Jose, CA Experience the thrill of San Jose Valley Charity Running event.
09/14/2025 Race to Slow the Pace 5K Lodi, CA The run will foster a connection to the land and the importance of slowing the pace of development to protect valuable farmland.
09/17/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5km(ish) route through the Marina neighborhood and the Presidio.
09/18/2025 Mammoth Trail Fest 50K, 26K Mammoth Lakes, CA Donuts, dirt, and epic trail running across the top of California.
09/20/2025 Byxbee Park Run 5K Palo Alto, CA A free, fun and friendly weekly 5K community event. Walk, jog or run. We all participate for our own enjoyment.
09/20/2025 Gold Rush Growler Trail Run 10M, 5K Granite Bay, CA This run starts at Granite Beach on Folsom Lake. The Gold Rush Growler features scenic single track courses along the shoreline.
09/20/2025 Kiwanis River Run 5K, 2M Fresno, CA This is a chance to make a difference as proceeds support the Valley Children's Hospital Pediatric Trauma-Injury Prevention Program.
09/20/2025 Lederhosen 5K 5K Olympic Village, CA Come out to Squaw Valley and start your Oktofest off with the Lederhosen. A super fun 5K in North Lake Tahoe to celebrate Oktofest.
09/20/2025 Mt. Umunhum Marathon 50K, 26.2M, 25K San Jose, CA Introducing the ultimate trail running experience, an adventure that transcends boundaries. Embark on a breathtaking journey through rough, untamed beauty!
09/20/2025 Newark Mile 4K Newark, CA The Newark Mile 4K is held each year in conjunction with Newark Days to celebrate the incorporation of the city.
09/20/2025 Rebel XC Challenge 6K Sacramento, CA The Rebel XC Challenge, sponsored by the River City Rebels, a Sacrmento-based club, will take place at Hoffman Park in Carmichael.
09/20/2025 Rocky Ridge Trail Half Marathon 13.1M, 10K, 5K San Ramon, CA This is the race your momma warned you about! The half marathon cannot be described as "flat and fast" or "good for beginners" or with any other nice phrase.
09/20/2025 Stevens Creek Striders Saturday Run 5M to 13M Cupertino, CA We meet every Saturday at 8:30 am at the Reservoir Parking Lot for a run, often followed by brunch.
09/20/2025 Stride for Hope 10K, 5K Fresno, CA Together, we can save and heal more lives! One by one, together, we have the power to give hope to the men, women and children waiting for a second chance at life.
09/21/2025 Asha-Jyothi 5K 5K Fremont, CA Our organization is dedicated to serve the educational and healthcare needs of underprivileged children. This event is more than a run, it's all -singing and all-dancing at the end.
09/21/2025 Eureka Schools Foundation Fund Run 5K Granite Bay, CA Ready to run, have fun, and make a difference? It’s time to lace up your sneakers and hit the pavement for an amazing cause!
09/21/2025 Island Running Festival 13.1M, 10K, 5K, 1M Alameda, CA We bring a distance for every runner in a single day of racing. All races start and finish at Faction Brewery.
09/24/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5K (ish) route through the Marina neighborhood and the Presidio.
09/26/2025 THE MAMMOTH 208M Mammoth Lakes, CA This epic foot race takes you through the Eastern Sierra. Your route will take you along pristine alpine lakes, abandoned mines, golden fall foliage and dense pine forests.
09/27/2025 A Walk/Run to Remember 5K Carson City, NV Join the fight to end Alzheimer's. All participants and teams are invited to show your PURPLE!
09/27/2025 Belmont Water Dog Run 10K, 5K, 1M Belmont, CA This run has grown into an anticipated annual community event. Every year students from our local high school volunteer to help organize this event.
09/27/2025 Big Sur Trail Marathon 26.2M, 13.1M, 5M Big Sur, CA Along the route you'll see some of the most amazing views that the California coastline has to offer.
09/27/2025 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!
09/27/2025 Cloverdale Hoptoberfest 4M Cloverdale, CA Get ready for an unforgetable day where fitness,, community and craft beer collide!
09/27/2025 Dick Collins Firetrails 100K, 50M, 26.2M Castro Valley, CA These races are run on the famous trails of the East Bay in the San Francisco Bay Area. Join us for some beautiful courses.
09/27/2025 Great Trail Race 21K, 18K Tahoe City, CA The Great Trail Race is an epic point to point route between Truckee and Tahoe City, CA that you can either Ride or Run.
09/27/2025 HERS Breast Cancer Foundation Run/Walk 10K, 5K Fremont, CA Join us at Quarry Lakes Reginal Park as we run/walk to support Bay Area breast cancer survivors.
09/27/2025 National Coffee Day: Run for Coffee - Sacramento 26.2M, 10K, 5K, 1M Sacramento, CA Get ready for a caffeine-filled adventure! This exciting event invites coffee lovers of all ages and paces to participate.
09/27/2025 National Singles Day: Singles and Friends Running Club - Sacramento 26.2M, 10K, 5K, 1M Sacramento, CA Get ready to lace up your sneakers and join the excitement. This unique running experience is designed for individuals looking to meet new friends.
09/27/2025 Pacifica Summit Run 13.1M, 10K Pacifica, CA Do you want to know what the view looks like from the tallest mountain on the upper San Francisco Peninsula? Then look more further than the Pacifica Trail Run!
09/27/2025 Ridge Rambler Half Marathon 13.1M Bridgeport, CA This is a POINT TO POINT COURSE!! The start line is not near the finish line but we will offer a shuttle from the finish back to the start.
09/27/2025 Spartan Trail - San Jose Trail Challenge 50K, 13.1M, 10K Saratoga, CA Spartan has done a big jump into the trail running scene through Spartan Trail, creating and partnering with world class events for an outstanding experience.
09/27/2025 Stevens Creek Striders Saturday Run 5M to 13M Cupertino, CA We meet every Saturday at 8:30 am at the Reservoir Parking Lot for a run, often followed by brunch.
09/27/2025 Sunset & Cider Trail Races 50K, 13.1M, 5M Auburn, CA Join us for an unparalleled adventure at the Sunset & Cider Trail Races, where your favorite race awaits in the heart of American Canyon in Auburn.
09/27/2025 Superhero Run 5K Lodi, CA Save the date! Every kid needs a hero but kids in foster care need SUPERHEROES! Run your own race at your own pace.
09/27/2025 Urban Cow Half Marathon 5K Sacramento, CA Join the herd at the Urban Cow weekend, Sacramento's top running event. Start your weekend with a scenic 5K run/walk through beautiful William Land Park.
09/28/2025 Hot Pink Fun Run 10K, 5K, 1M Roseville, CA Join us in the "Fight Against Breast Cancer"! Gather your friends and family and enjoy a fun race, followed by pancakes, bubbles and brews…
09/28/2025 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA The distances offered at this race are one, two and three times around Lake Merritt.
09/28/2025 Phil Widener Empire Open 3.4M Santa Rosa, CA The course is 3.4 miles of rugged dirt trails, a bit of asphalt bike path, a few short hills and some wicked competition. Please plan to arrive early or carpool.
09/28/2025 Urban Cow Half Marathon 13.1M Sacramento, CA Follow Saturday's run with the Half marathon on Sunday. The half showcases Sacramento's most iconic neighborhoods and landmarks, including Capital Mall, Old Sacramento, and more!
09/28/2025 ZERO Prostate Cancer Run/Walk - Sacramento 5K, 1M Sacramento, CA Let's #ZERO out Prostate Cancer Together! Register and start fundraising today to support prostate cancer patients and families!

October 2025

Date Event Distance Location Description
10/01/2025 Fog City Run 5K San Francisco, CA The course is a hilly 5K (ish) route through the Marina neighborhood and the Presidio.
10/04/2025 Auburn Half Marathon 13.1M, 12K, 5K Auburn, CA A half marathon, 12K and 5K will take runners from the Auburn Overlook park, into Auburn State Recreation Area.
10/04/2025 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!
10/04/2025 Frida Fun Run 5K, 2K Fresno, CA This race is also part of The Central Valley Runner of the Year Series.
10/04/2025 HDSA Team Hope 5K Fun Run 5K San Francisco, CA Join us for the San Francisco Team Hope 5K Walk & Fun Run along Crissy Field.
10/04/2025 Nor Cal Think Pink 5K 5K Redding, CA Help us RUN into October with one of our most popular events!
10/04/2025 Reservoir Dogs Trail Run 35K, 13.1M, 10K, 5K Orinda, CA The Start and Finish for all races will be in the San Pablo Reservoir Recreation Area.
10/04/2025 Rock 'n' Roll San Jose Half 5K San Jose, CA Welcome to Speed City, USA! Nicknamed after the legendary San Jose State track teams of the 60s, San Jose is all about speed.
10/04/2025 Star City San Bruno Mountain Half Marathon 13.1M Brisbane, CA Our race was dreamed up by runners who love the trails of San Bruno Mountain.
10/04/2025 Think Pink 5K 5K Yuba City, CA We still want to honor our survivors and celebrate those who have battled breast cancer along with other female forms of cancer.
10/04/2025 Wild Wild West Marathon 50M, 50K, 26.2M, 10M Lone Pine, CA Run in the shadow of the High Sierra and through the Alabama Hills.
10/05/2025 Judgment Day Half Marathon 13.1M Bakersfield, CA This is a very scenic course.
10/05/2025 Lions Turtle Bay Run 13.1M, 10K, 2M Redding, CA We have runners from various parts of the country come to compete in the sport of running.
10/05/2025 Peace Officer Memorial Run 13.1M, 5K, 1M Modesto, CA This race was developed to honor the police officers from Stanislaus County who were killed in the line of duty.
10/05/2025 Pumpkin Run 5K Clovis, CA Run or walk along our scarecrow and pumpkin decorated course and earn your pumpkin and start a new family tradition!
10/05/2025 Run by the Sea 13.1M, 12K, 4K Santa Cruz, CA This unique Half Marathon meanders along the gorgeous coastal bluffs of California's Central Coast in Santa Cruz and consists mostly of flat, packed dirt trails.
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!

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