Race Calendar
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Please check out our Featured Races as well.
December 2022
| Date | Event | Distance | Location | Description |
|---|---|---|---|---|
| 12/10/2022 | 12Ks of Christmas | 12K, 2M | Redding, CA | Both races will start at 9am from Lake Redding Park. |
| 12/10/2022 | Byxbee parkrun | 5K | Palo Alto, CA | It is a 5km run - it's you against the clock. Every Saturday at 8:00am. |
| 12/10/2022 | Fresno 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. |
| 12/10/2022 | 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. |
| 12/10/2022 | Jingle Bell Run - Sacramento | 5K | Sacramento, CA | Help keep the tradition going strong by jingling with your family and friends at the Arthritis Foundation's 2022 Jingle Bell Run. |
| 12/10/2022 | Modesto Spirit of Giving 5K | 5K | Modesto, CA | Gives back to the community. |
| 12/10/2022 | Run Walnut Creek | 13.1M, 10K, 5K | Walnut Creek, CA | The Walnut Creek Half Marathon is a fun and exciting course for all; runners & walkers alike enjoy this course for its ever-changing scenery & spirited volunteers along the route. |
| 12/10/2022 | Summit Rock Half Marathon | 13.1M, 10K, 5K | Saratoga, CA | Tucked away just outside Silicon Valley, Sanborn County Park features miles of single-track trails dappled with filtered light through lush canopy. |
| 12/11/2022 | Hanukkah 8 Krazy Kilometers | 8K, 2K | Bakersfield, CA | Runners, joggers and walkers of all ages are invited to the annual Hanukkah 8 Krazy Kilometers. |
| 12/11/2022 | Krampus Cross Country 5K/10K | 10K, 5K | San Francisco, CA | TBD. 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). |
| 12/11/2022 | Rodeo Beach Trail Run | 50K, 30K, 20K, 8K | Sausalito, CA | Enjoy vistas of the Pacific Coast as you take a scenic tour of the spectacular Marin Headlands with views of San Francisco, Tiburon, Golden Gate Bridge California coastline. |
| 12/11/2022 | 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 on Sunday, December 12, 2021 at Vernon Street Town Square. |
| 12/11/2022 | ZombieRunner Quarry Lakes Run | 26.2M, 30K, 13.1M, 10K, 5K | TBD. 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. | |
| 12/14/2022 | Fog City Run | 5K | San Francisco, CA | The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio. |
| 12/17/2022 | 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. |
| 12/17/2022 | Byxbee parkrun | 5K | Palo Alto, CA | It is a 5km run - it's you against the clock. Every Saturday at 8:00am. |
| 12/17/2022 | Captain s Winter Solstice Runaround | 12H, 6H, 4H | Modesto, CA | Runners compete in 4-, 6-, or 12-hour events to see how many miles they can complete. |
| 12/17/2022 | Christmas Palo Alto Double 15K | 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. |
| 12/17/2022 | Last 10K & Final 2 Mile | 10K, 2M | Santa Rosa, CA | Race in your Ugly Christmas sweater and be entered in a contest for a special prize! |
| 12/17/2022 | Woodside Ramble | 50K, 35K, 13.1M, 10K | Redwood City, CA | TBD. Distances of 10K, Half Marathon, 35K and 50K make for the perfect proving grounds for runners, and hikers, of all abilities. |
| 12/18/2022 | Walnut Creek Youth and 5K Series - December | 5K, 1M, 0.5M | Walnut Creek, CA | Earn points for every race you run. |
| 12/21/2022 | Fog City Run | 5K | San Francisco, CA | The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio. |
| 12/24/2022 | Byxbee parkrun | 5K | Palo Alto, CA | It is a 5km run - it's you against the clock. Every Saturday at 8:00am. |
| 12/24/2022 | 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. |
| 12/25/2022 | LMJS Fourth Sunday Race | 15K, 10K, 5K | Oakland, CA | TBD. Participation ribbons are given to all runners and place ribbons are awarded to the top runners, both male and female in ten year age groups. |
| 12/28/2022 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 12/31/2022 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
January 2023
| Date | Event | Distance | Location | Description |
|---|---|---|---|---|
| 01/04/2023 | Fog City Run | 5K | San Francisco, CA | The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio. |
| 01/07/2023 |
 |
50K | Alameda, CA | Barney Smith lost his father, Ed, a few years ago. In honor of him, and in order to raise awareness for an issue that all too often has no voice, we are inviting you to join us on a very special walk. This year, we have a 50K and a 5K option! |
| 01/07/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 01/07/2023 | 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. |
| 01/07/2023 | 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! |
| 01/08/2023 | 3rd Annual Livermore-Pleasanton-City of Alameda Walk | 5K | Alameda, CA | Barney Smith lost his father, Ed, a few years ago. In honor of him, and in order to raise awareness for an issue that all too often has no voice, we are inviting you to join us on a very special walk. This year, we have a 50K and a 5K option! |
| 01/08/2023 | 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! |
| 01/11/2023 | Fog City Run | 5K | San Francisco, CA | The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio. |
| 01/14/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 01/14/2023 | 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. |
| 01/14/2023 | 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. |
| 01/15/2023 | The 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! |
| 01/18/2023 | Fog City Run | 5K | San Francisco, CA | The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio. |
| 01/21/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 01/22/2023 | 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. |
| 01/25/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 01/28/2023 | Byxbee Parkrun | 5k | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 01/28/2023 | 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. |
| 01/28/2023 | 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. |
| 01/28/2023 | 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. |
February 2023
| Date | Event | Distance | Location | Description |
|---|---|---|---|---|
| 02/01/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 02/04/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 02/04/2023 | 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. |
| 02/04/2023 | Golden Gate (Winter) | 50K, 26.2M, 30K, 13.1M, 8K | Sausalito, CA | Enjoy vistas of the Pacific Coast and of the spectacular Marin Headlands with views of Tiburon, San Francisco and the Golden Gate Bridge. |
| 02/04/2023 | 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. |
| 02/05/2023 | Kaiser Permanente San Francisco Half Marathon | 13.1M, 10K, 5K | San Francisco, CA | The Kaiser Permanente San Francisco Half Marathon® is a runners’ favorite for its scenery and value. Fast and certified course through San Francisco’s scenic Golden Gate Park. |
| 02/08/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 02/11/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 02/11/2023 | CSUB Kinesiology Club Valentine's Run | 10K, 5K | Bakersfield, CA | Experience a flat and fast course on the beautiful CSUB campus. |
| 02/11/2023 | Escape from Folsom 10 Miler and 5K | 10M, 5K | Granite Bay, CA | The Escape from Folsom 5K and 10 Miler course are on scenic trails along the shoreline of Folsom Lake. |
| 02/11/2023 | Valentine Run/Walk - Race for Justice | 4M, 2M | Sacramento, CA | Join us for the Sacramento Valentine Run, the annual Race for Justice! |
| 02/12/2023 | 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. |
| 02/12/2023 | Oakland 5000 - Super Runday 5K | 5K | Oakland, CA | Join the Oakland Run Co. Crew for a 5K run to make a preemptive strike on a day of friends, football and calories. |
| 02/15/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 02/18/2023 | Buzz Marathon | 26.2M, 13.1M, 10K, 5K | San Miguel, CA | All races are run on the grounds of Camp Roberts, just north of San Miguel, California. Out-and-back course on paved road with dirt and packed gravel shoulders. |
| 02/18/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 02/22/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 02/25/2023 | Beer City Half Marathon | 13.1M, 10K, 5K | Santa Rosa, CA | Kick off Beer City Festival with a run along Santa Rosa Creek. Half marathon, 10k, and 5k with fine regional beers and kombucha to taste at the finish. |
| 02/25/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 02/25/2023 | Lost Trail Half Marathon | 13.1M, 5K | Granite Bay, CA | The Lost Trail 5K and Half Marathon have beautiful and very well-marked courses on single track trails along the shoreline of Folsom Lake with many scenic views. |
| 02/26/2023 | Davis Stampede Half Marathon | 13.1M, 10K, 5K | Davis, CA | The Davis Stampede is a longstanding tradition with running and walking in Northern California. |
| 02/26/2023 | 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. |
March 2023
| Date | Event | Distance | Location | Description |
|---|---|---|---|---|
| 03/01/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 03/01/2023 | Summer Sizzle 5K | 5K | Pacifica, CA | The Summer Sizzle is the perfect way to celebrate hot weather. Are you keen to test yourself in hot conditions? Make sure you don't miss this fiery event! |
| 03/04/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 03/04/2023 | San Francisco 5K/10K for Special Olympics | 10K, 5K | San Francisco, CA | The family-friendly event will begin with scenic 5K and 10K timed runs along the Bay with beautiful views of the city and the Golden Gate Bridge. |
| 03/04/2023 | 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. |
| 03/04/2023 | Silver Moon Race - Paso Robles | 24H, 100M, 10K, 2M, 12H, 6H | Paso Robles, CA | Experience running through a beautiful scenic vineyard, starting before sunset going under the vibrant full moon night, and into the sunrise. |
| 03/04/2023 | Sundial Shadow | 50K, 13.1M | Redding, CA | This trail race follows the Sacramento River along the single track trails and finishes at the iconic Sundial Bridge in Turtle Bay. |
| 03/04/2023 | Way Too Cool 50K Endurance Run | 50K | Cool, CA | This race has become the most sought after 50K in the US for veterans and novices alike. |
| 03/05/2023 | 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. |
| 03/05/2023 | Lunar New Year Run | 10K, 5K | San Francisco, CA | Our community events are a great way to get involved with your neighborhood and a healthy way to get the family together. |
| 03/05/2023 | 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. |
| 03/08/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 03/11/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 03/11/2023 | Chanoko Trail Runs | 50K, 31K, 5M | Granite Bay, CA | Participants have a choice of three distances. All finishers will receive custom Chanoko Finishers Apparel. |
| 03/11/2023 | Marin Ultra Challenge | 50M, 50K, 25K | Sausalito, CA | The Marin Ultra Challenge , our premier Marin County long distance trail race, delivers ample hills and sweeping descents. |
| 03/11/2023 | Shamrock'n 5K, 10K and Leprechaun Dash | 10K, 5K | Sacramento, CA | The Shamrock'n 5K, 10K and Leprechaun Dash will be on Saturday, March 11, 2023. The Shamrock'n Half Marathon will be on Sunday March 12, 2023. |
| 03/12/2023 | Shamrock'n Half Marathon | 13.1M | Sacramento, CA | The Shamrock'n 5K, 10K and Leprechaun Dash will be on Saturday, March 11, 2023. The Shamrock'n Half Marathon will be on Sunday, March 12, 2023. |
| 03/12/2023 | Zoom Angel Island | 15M, 10M, 5M | Tiburon, CA | Angel Island is a hilly grass and forest covered island that provides spectacular views of Marin County, San Francisco and the Golden Gate. |
| 03/15/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 03/18/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 03/18/2023 | Folsom Lake South Side Trail Run | 38M, 50K, 21M, 13.1M, 10K, 5K | Folsom, CA | All very appealing single track, great running, some technical sections. |
| 03/18/2023 | Little Loco Relay | 65M | Butte Meadows, CA | 65-ish Miles 2, 3 or 6 runners or Singe Runner Option. |
| 03/18/2023 | 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. |
| 03/18/2023 | She.is.beautiful.Santa Cruz Run | 13.1M, 10K, 5K | Santa Cruz, CA | She.is.beautiful is an inspiring, uplifting, and welcoming space for all women to come together to sweat their story in all the seasons of life. |
| 03/18/2023 | 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. |
| 03/19/2023 | Oakland Running Festival | 26.2M, 13.1M, 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. |
| 03/22/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 03/25/2023 | 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. Strollers allowed. |
| 03/25/2023 | Byxbee parkrun | 5K | Palo Alto, CA | Byxbee parkrun takes place every Saturday at 8:00am. |
| 03/25/2023 | Foam Glow - Fresno | 5K | Fresno, CA | Ready, set, glow!! Foam Glow is the world's largest foam run and dance party. Light up the night on this 5K course as you run, walk and dance under the stars. |
| 03/25/2023 | Golden Gate Headlands Marathon | 26.2M, 13.1M, 10K | Sausalito, CA | Run along a backdrop that combines gorgeous natural vistas with views of San Francisco's urban skyline in the distance, as well as a hilly and challenging course. |
| 03/25/2023 | 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. We have a capacity of 400 runners across all distances. |
| 03/25/2023 | 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 (10K+Break+5K). |
| 03/25/2023 | Mighty Dog Trail Runs | 10K, 5K | Granite Bay, CA | This event offers two distances: 5K and 10K - both for walkers, runners and their dodgs! |
| 03/25/2023 | 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. |
| 03/26/2023 | Bakersfield Marathon | 26.2M, 13.1M, 10K, 5K | Bakersfield, CA | In addition to giving local runners an opportunity to run a Boston qualifying marathon in their own back yard, we are excited to welcome runners from across the US and around the world. |
| 03/26/2023 | 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. Help save our sanity by signing up ahead of the race! |
| 03/26/2023 | Modesto Marathon | 26.2M, 13.1M, 5K | Modesto, CA | The flat, fast course will be open 7 hours, allowing adequate time for first-time marathoners. |
| 03/26/2023 | Napa Valley Women's Half Marathon | 13.1M, 5K | Napa, CA | Wine. Dine. Run! The ultimate women's week-end! From walkers to runners, everyone can find their place! |
| 03/26/2023 | Wildflower Run | 10K, 5K, 2M | Morgan Hill, CA | TBD. These flat, fast courses on scenic local back roads are ideal for runners wanting to improve their personal best times. Proceeds fund scholarships for women and girls. |
| 03/29/2023 | Fog City Run | 5K | San Francisco, CA | The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido. |
April 2023
| Date | Event | Distance | Location | Description |
|---|---|---|---|---|
| 04/01/2023 | American River 50 Mile Endurance Run | 50M, 25M | Folsom, CA | American River has become the second largest 50 miler in the United States. The race attracts both veterans and novices alike. |
| 04/01/2023 | Byxbee parkrun | 5K | Palo Alto, CA | It is a 5km run - it's you against the clock. Every Saturday at 8:00am. |
| 04/01/2023 | 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. |
| 04/01/2023 | Prima Run | 5K | Reedley, CA | The run is for serious & casual runners of all ages. |
| 04/01/2023 | Redwood | 50K, 26.2M, 30K, 13.1M, 5M | Oakland, CA | The course travels through beautiful Redwood Regional Park. |
| 04/02/2023 | Credit Union SACTOWN Run | 10M, 5K, 1M | Sacramento, CA | The flat, fast course starts and finishes at the spectacular California State Capitol and leads runners through the “best of Sacramento.” |
| 04/02/2023 | Foster 5K | 5K | Sunnyvale, CA | For foster kids in Silicon Valley. |
| 04/02/2023 | Ruth McKenzie Preserve Half Marathon | 13.1M, 10K, 5K | Friant, CA | Half Marathon participants will be treated to beautiful views and rolling hills. |
| 04/05/2023 | Fog City Run | 5K | San Francisco, CA | The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido. |
| 04/07/2023 | Lake Sonoma 50 - Trail Sisters | 13.1M | Healdsburg, CA | Join us in Healdsburg, California, April 7th and 8th 2023 for the Classic Lake Sonoma 50 Mile, Marathon, and NEW Trail Sisters Half Marathon! |
| 04/08/2023 | Antioch Rotary Club Bunny Hop 5K | 5K | Antioch, CA | This year we invite participants to run like the Hare or pace yourself steady to victory like the tortoise. |
| 04/08/2023 | Byxbee parkrun | 5K | Palo Alto, CA | It is a 5km run - it's you against the clock. Every Saturday at 8:00am. |
| 04/08/2023 | Foam Glow - Sacramento | 5K | Sacramento, CA | Foam Glow 5K™ is a fun filled experience exposing runners to Glowing Foam and a ton of Blacklight’s all over the course. |
| 04/08/2023 | Lake Sonoma 50 | 50M, 26.2M | Healdsburg, CA | Join us in Healdsburg, California, April 7th and 8th 2023 for the Classic Lake Sonoma 50 Mile, Marathon, and NEW Trail Sisters Half Marathon! |
| 04/08/2023 | 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. |
| 04/09/2023 | 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. |
| 04/12/2023 | Fog City Run | 5K | San Francisco, CA | The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido. |
| 04/15/2023 | Byxbee parkrun | 5K | Palo Alto, CA | It is a 5km run - it's you against the clock. Every Saturday at 8:00am. |
| 04/15/2023 | 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. |
| 04/15/2023 | 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. |
| 04/15/2023 | Honey Run Covered Bridge | 5K | Chico, CA | Help rebuild the Honey Run Covered Bridge by participating in our 1st Annual 5K / 10K run/walk. |
| 04/15/2023 | IPA10K, Brewfest & Beer Mile | 10K, 3K, 1M | Sebastopol, CA | The IPA10K is a one-of-a-kind celebration of running, craft beer, and much more! |
| 04/15/2023 | 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! |
| 04/15/2023 | Rodeo Beach Rumble | 50K, 30K, 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! |
| 04/15/2023 | 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! |
| 04/16/2023 | 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. |
| 04/16/2023 | Presidio 10 | 10M, 10K, 5K | San Francisco, CA | The Levi’s Presidio 10 brought to you by the Guardsmen is back and better than ever! |
| 04/16/2023 | Run Rocklin | 13.1M, 12K, 5K | Rocklin, CA | All proceeds from Run Rocklin are donated to Matt's Foundation. |
| 04/19/2023 | Fog City Run | 5K | San Francisco, CA | The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido. |
| 04/22/2023 | Byxbee parkrun | 5K | Palo Alto, CA | It is a 5km run - it's you against the clock. Every Saturday at 8:00am. |
| 04/22/2023 | John Adams Academy Revolution Run | 10K, 5K, 1M | Roseville, CA | The Revolution Run is a 10K, 5K & 1 Mile walk/run that begins on the Roseville campus at One Sierra Gate Plaza and proceeds onto the City of Roseville's Miners Ravine Trail. |
| 04/22/2023 | Leona Divide | 100K, 50M, 50K, 30K | Green Valley, CA | We are all set for April 23 and look forward to seeing you out on the beautiful Leona Divide course! The 100k is a Western States Qualifier. |
| 04/22/2023 | Romancing the 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. |
| 04/22/2023 | Rugged Maniac Obstacle Race - San Francisco | 5K | Pleasanton, CA | Rugged Maniac boasts 25+ obstacles consisting of unlimited mud, giant inflatables, rope climbs, and our fan-favorite, sky-scraping waterslide, Accelerator 3.0. |
| 04/23/2023 | Horseshoe Lake Trail Run | 50K, 26.2M, 13.1M, 5K | 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. |
| 04/23/2023 | LMJS Fourth Sunday Race | 15K, 10K, 5K | Oakland, CA | Every month except February, March, and June. |
| 04/23/2023 | Om Run | 13.1M, 10K, 5K | Los Gatos, CA | Om Run has evolved into a unique running event, in that, the focus is on community building and so attractions are mixed with a 5K, 10K and a 1/2 marathon race. |
| 04/26/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 04/29/2023 | 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 14 years! |
| 04/29/2023 | 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. |
| 04/30/2023 | 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. |
| 04/30/2023 | Mud Factor - Fresno | 5K | Sanger, CA | 5k obstacle run. |
| 04/30/2023 | My Heart Counts 5K/10K | 10K, 5K | Stanford, CA | You will be running or walking through the beautiful Stanford Campus. |
May 2023
| Date | Event | Distance | Location | Description |
|---|---|---|---|---|
| 05/03/2023 | Fog City Run | 5K | San Francisco, CA | The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio. |
| 05/06/2023 | 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! |
| 05/06/2023 | Dirty Secret Trail Run | 10.3M, 5.8M | Cool, CA | TBD. It is recommended that each runner carry a water bottle and drink regularly. Bring a sense of humor, a good attitude and a safety mind set. |
| 05/06/2023 | Folsom 100 | 100 Miles | Folsom, CA | Come join us for the first ever Folsom 100Mile Ultramarathon circumnavigating Folsom Lake! |
| 05/06/2023 | Folsom Lake Trail Runs | 50K, 35K, 13.1M, 10K | Folsom, CA | This is one of our "flatter" courses, but there is still plenty of excitement. Every race is as challenging as you make it! |
| 05/06/2023 | 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. |
| 05/06/2023 | 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. |
| 05/06/2023 | 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. |
| 05/06/2023 | Wild, Wild West Marathon | 50M, 50K, 26.2M, 10M | Lone Pine, CA | This is the oldest trail marathon in the United States. It has been held for 45 years! |
| 05/06/2023 | 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. |
| 05/07/2023 | 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. |
| 05/07/2023 | 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. |
| 05/07/2023 | 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. |
| 05/07/2023 | 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. The mostly flat course is perfect for those who want to set a new PR as well as those wanting to get out for a run/walk with families |
| 05/07/2023 | Grapes of Wrath Triathlon 10K/5K | 10K, 5K | Delano, CA | The Grapes of Wrath Triathlon is a fast and fun race in the central valley located east of Delano, CA. |
| 05/10/2023 | Fog City Run | 5K | SanFrancisco, CA | The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio. |
| 05/13/2023 | 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! |
| 05/13/2023 | 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! Find your happy pace, keep moving forward and cross the finish line! |
| 05/13/2023 | 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. |
| 05/13/2023 | Mermaid Run East Bay | 18M, 13.1M, 10K, 5K | Fremont, CA | Kick off spring with the annual Mermaid Classic that features a run for everyone. Enjoy the fresh air and positive vibes. |
| 05/13/2023 | 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. |
| 05/13/2023 | Paiute Meadows Trail Run | 50K, 13.6M, 4.5M, 1M | Susanville, CA | Join us at Susanville Ranch Park as we showcase the region's premiere trail system. |
| 05/13/2023 | Quicksilver 100K and 50K | 100K, 50K | San Jose, CA | The Quicksilver 100k race is a Western States 100 Mile Endurance Run qualifier! |
| 05/13/2023 | Shasta Mud Run | 10K, 5K | Anderson, CA | Challenge yourself and others on either the 5K or 10K trails through multiple obstacles. Designed for the serious athlete or those just wanting some adventurous family entertainment. |
| 05/13/2023 | Sly Park Lake Trail Run | 50K, 26.2M, 18M, 13.1M, 8.5M, 10K, 5K | Pollack Pines, CA | 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. |
| 05/14/2023 | Ohlone 50K Trail Run | 50K | Fremont, CA | TBD. The Ohlone 50K is a point-to-point race traversing the entire Ohlone Wilderness Trail. |
| 05/17/2023 | Fog City Run | 5K | San Francisco, CA | The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio. |
| 05/20/2023 | Bishop High Sierra Ultras | 100K, 50M, 55K, 20M, 6K | Bishop, CA | These are high altitude races, with lots of climbing, in the scenic foothillls of the Eastern Sierra Nevada. |
| 05/20/2023 | 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! |
| 05/20/2023 | Campus Life 5K | 5K | Fresno, CA | This 5k + Kids Fun Run is for the whole family to enjoy! |
| 05/20/2023 | Greenhorn Ranch Trail Run | 50K, 25K, 10K, 5K | Quincy, CA | Single direction loop course. 100% dirt forest roads and single track trail. 4200 vertical gain in each 25km loop. |
| 05/20/2023 | 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. |
| 05/20/2023 | Livingston Splash of Color Run | 5K | Livingston, CA | TBD. The 5k Fun Walk/Run will take begin in Memorial Park at 1339 Main Street and end up at Alvernaz Field after winding through several parks on the North side of town. |
| 05/20/2023 | 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. |
| 05/20/2023 | San Francisco 50/50 Endurance Runs | 50M, 50K | Rodeo Beach, California | Enjoy vistas of the Pacific Coast as you take a scenic tour of the spectacular Marin Headlands with views of Tiburon, Pirates Cove, San Francisco and the Golden Gate Bridge. |
| 05/21/2023 | Surfer's Path Half Marathon | 13.1M | Santa Cruz, CA | Run in California's coastal playground. You will be treated to scenic courses, featuring breathtaking views of the Monterey Bay coastline and a series of world-renowned surf breaks. |
| 05/21/2023 | Windsor Wine Run | 13.1M, 10K, 5K | Windsor, CA | Windsor Run and Wine is the most memorable race and post race festival in California! |
| 05/24/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
| 05/27/2023 | 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. |
| 05/27/2023 | 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! |
| 05/27/2023 | 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. |
| 05/28/2023 | 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). |
| 05/31/2023 | Fog City Run | 5K | San Francisco, CA | A hilly 5km(ish) route through the Marina neighborhood and the Presidio. |
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