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Race Calendar

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December 2017

Date Event Distance Location Description
12/17/2017 Fleet Feet Free Holiday Classic 5K Sacramento, CA The race is FREE. It’s our gift to the running community.
12/17/2017 Presidio Cross Country 5K 5K San Francisco, CA The start and finish are on the grass lawn adjacent to Julius Kahn Playground.
12/17/2017 Santa Run Silicon Valley 5K San Jose, CA This 5K Run/Walk is fun for the whole family and we encourage you to dress up as your favorite holiday character or tradition.
12/17/2017 Ugly Holiday Sweater Run 5K Arcata, CA We will be running/walking/prancing around the Arcata Plaza with holiday cheer.
12/17/2017 ZombieRunner Quarry Lakes Run 26.2M, 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.
12/20/2017 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
12/23/2017 Crissy Field Park Run 5K San Francisco, CA We all run for own enjoyment. Please come along and join in whatever your pace!
12/24/2017 Christmas Eve Fun Run 5.3M Merced, CA The loop is about 5.3 miles, out and back on the bike path along Bear Creek.
12/24/2017 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA 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.
12/24/2017 Placerville Path Run Jingle & Mingle 13.1M, 10K, 5K Placerville, CA Courses start & finish in beautiful historic Placerville CA which will be decorated with our annual Christmas displays.
12/24/2017 Rainbow Falls Holiday 5K 5K San Francisco, CA Races start at 9:00 am, unless otherwise noted.
12/27/2017 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) through the Marina neighborhood and the Presidio.
12/30/2017 Crissy Field Park Run 5K San Francisco, CA We all run for own enjoyment. Please come along and join in whatever your pace!
12/31/2017 Kennedy Drive 8K 8K San Francisco, CA Races start at 9:00 am, unless otherwise noted.
12/31/2017 New Year's Eve 13.1M, 10K , 5K Fremont, CA TBD. Whether you are looking to squeeze in your first trail run or you're looking to log that 1,000th mile before the clock strikes midnight on 12/31/2016, this is your chance!
12/31/2017 New Year’s One Day TBD San Francisco, CA Each lap is 1.065 miles around the lagoon at Crissy Field. Welcome the new year at Crissy Field.

January 2018

Date Event Distance Location Description
01/01/2018 Brazen New Year's Day Half marathon 13.1M, 10K, 5K Castro Valley, CA The sun is rising on the first day of the new year. Where should you be? Hitting the trails of Lake Chabot, of course!
01/01/2018 Clikapudi Trail Runs 13.1M, 10K, 5K Redding, CA Clikapudi Trail Runs bring you to the great outdors of Northern California. Start your new year off on the right foot (or left) with an awesome trail race on the shores of Shasta Lake.
01/01/2018 Kiwanis 2018 Resolution Run 5K and 10K 5K, 10K Mountain View, CA Join us for a Fun New Year's morning January 1, 2018 at Mountain View Shoreline Park! We’ve got both a 5K or 10K event to choose from. The courses are on paved walking and bicycling paths within Mountain Views Shoreline park. Resolve to make a difference in the new year, and that will automatically start with your registration fee for this race. Enjoy post-race refreshments and music while you collect your hard earned awards.
01/01/2018 Los Gatos Resolution Run 5M Los Gatos, CA The five-mile run takes participants from the Los Gatos High School track out to Lexington Dam and back, and is the perfect way to start a year of personal fitness success.
01/01/2018 Resolution Run 4M, 2M Fresno, CA Kick off the new year the right way! Whatever your resolutions are…grab your running shoes and your family and friends and join us at the New Year's Day Fresno Resolution Run on Jan. 1.
01/01/2018 Resolution Run 5K 5K Santa Rosa, CA This is a great race with an over 35years history of attracting some of the fastest runners in Northern California. Due to narrow sections on the course, strollers and dogs pose significant hazards and are not permitted.
01/01/2018 Resolve2Run 10K, 5K Grass Valley. CA We encourage on line registration to avoid lines. This annual run/walk winds it's way through some of the most beautiful areas of Nevada County.
01/03/2018 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
01/06/2018 Crissy Field parkrun 5K San Francisco, CA What is Crissy Field Park Run? It is a 5K run-it's you against the clock. When is it? Every Saturday at 9:00am. Where is it? It takes place at 1199 East Beach St., SF.
01/06/2018 Death Valley Half Marathon 13.1M, 10K, 5K Death Valley, CA Hottest, driest, lowest half marathon!
01/07/2018 Hot Chocolate 15K/5K- San Francisco 15K, 5K San Francisco, CA Join the movement that's taken over the racing world. Hot Chocolate 15k/5k is headed to San Francisco on January 7, 2018! Start and finish in Golden Gate Park Music Concourse amongst San Francisco's biggest chocolate aficionados. This year, train, race, and celebrate with us all the way to the finish line. We're with you through the season. Get a free buff headband with code SWEATTRACK18!
01/10/2018 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
01/13/2018 Crissy Field parkrun 5K San Francisco, CA What is Crissy Field Park Run? It is a 5K run-it's you against the clock. When is it? Every Saturday at 9:00am. Where is it? It takes place at 1199 East Beach St., SF.
01/13/2018 Kickstart Trail Run 5K Granite Bay, CA The Kickstart Trail Run will feature a beautiful trail run along the shoreline of Folsom Lake with challenge and fun artfully combined.
01/13/2018 Pacifica Foothills Trail Run 30K, 13.1M, 10K Pacifica, CA San Pedro Valley Park is nestled amongst the Santa Cruz Mountain range and the foothills of Pacifica and offers a coastal mountain environment.
01/13/2018 Winchell Cove 10K/10M Trail Run 10M, 10K Friant, CA The 10k course is perfect for those possibly wanting to try out trail running for the first time. The 10 mile course offers a bit more of a challenge in the way of a longer distance and a few hills.
01/14/2018 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!
01/17/2018 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
01/20/2018 Break Free Run Oakland 10K, 5K Oakland, CA You can DO SOMETHING today to combat human trafficking. Join us for a very worthwhile cause!
01/20/2018 Coyote Hills Half Marathon 13.1M, 10K, 5K Fremont, CA Half the fun will be experiencing all the different kinds of trails, including dirt, paved and even bridges. Hikers and walkers are always welcome!
01/20/2018 Crissy Field parkrun 5K San Francisco, CA What is Crissy Field Park Run? It is a 5K run-it's you against the clock. When is it? Every Saturday at 9:00am. Where is it? It takes place at 1199 East Beach St., SF.
01/20/2018 Frost or Fog 10-Mile, 1/4 Marathon & 5K 10M, 6.55M, 3.1M Chico, CA The Frost or Fog 10-Mile, Quarter Marathon and 5K is one of Chico's favorite winter runs! Join us on these great, challenging courses that cover gravel, trail and road!
01/24/2018 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presidio.
01/27/2018 Crissy Field parkrun 5K San Francisco, CA What is Crissy Field Park Run? It is a 5K run-it's you against the clock. When is it? Every Saturday at 9:00am. Where is it? It takes place at 1199 East Beach St., SF.
01/27/2018 Pirate 5K Booty Run 5K Fresno, CA Participants receive a Pirate Booty Run shirt with map, pirate bandana and a chance at the Pirate's Treasure Chest. Dress in your best pirate garb and run for the booty.
01/27/2018 The Gumby Trail Runs 10K, 5K Granite Bay, CA This race will feature a beautiful trail course along the shores of Folsom Lake with plenty of aid stations and cheering volunteers on a well marked course.
01/28/2018 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.
01/31/2018 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.

February 2018

Date Event Distance Location Description
02/03/2018 Crissy Field parkrun 5K San Francisco, CA What is Crissy Field Park Run? It is a 5K run-it's you against the clock. When is it? Every Saturday at 9:00am. Where is it? It takes place at 1199 East Beach St., SF.
02/03/2018 Death Valley Marathon 26.2M, 13.1M, 10K Death Valley, CA Enjoy an out-and-back relatively flat course (fewer than 500 feet of climbing and descending).
02/03/2018 Fort Ord Trail Run 50K, 25K, 10K Salinas, CA TBD. The Fort Ord Trail Run will have a capacity of 400 runners across all distances.
02/03/2018 Ordnance 100K 100K Salinas, CA TBD. This course has been designed to highlight Fort Ord National Monument. You will run on just about every type of trail there is during this 62 mile tour.
02/04/2018 San Francisco Half Marathon 13.1M, 5K San Francisco, CA The Kaiser Permanente San Francisco Half Marathon is a certified 13.1 mile course and ranked as one of the most scenic in the country by Runner’s World. Save $5 with code HEATHER5OFF.
02/04/2018 Super Sunday Run 10K, 5K Sacramento, CA The Super Sunday Run is Sacramento’s ticket to a guilt-free Super Bowl Sunday!
02/07/2018 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/10/2018 Bay Breeze Half-Marathon 13.1M, 10K, 5K San Leandro, CA All race distances start and finish at the San Leandro Marina Park! All participants will enjoy a mostly-flat, easy bayside trail that rarely strays more than a few feet from water.
02/10/2018 Crissy Field parkrun 5K San Francisco, CA What is Crissy Field Park Run? It is a 5K run-it's you against the clock. When is it? Every Saturday at 9:00am. Where is it? It takes place at 1199 East Beach St., SF.
02/10/2018 Escape from Folsom Trail Runs 10M, 5K Granite Bay, CA The Escape from Folsom 10 Mile Trail Run and 5K Walk/run has beautiful courses along Folsom Lake on scenic trails covered in wildflowers.
02/14/2018 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/17/2018 Chabot Trail Run 50K, 30K, 13.1M, 10K, 5K Castro Valley, CA This is one of our typically faster races with less elevation and some paved sections. The course is designed for those who are looking to PR.
02/17/2018 Crissy Field parkrun 5K San Francisco, CA What is Crissy Field Park Run? It is a 5K run-it's you against the clock. When is it? Every Saturday at 9:00am. Where is it? It takes place at 1199 East Beach St., SF.
02/18/2018 Buzz Marathon 13.1M, 10K, 5K San Miguel, CA TBD. The race takes runners through the hills and open spaces of north San Luis Obispo County’s Camp Roberts Army National Guard Reservation.
02/18/2018 Valley Ford Relay 11M Valley Ford, CA Each team must have 4 runners.
02/21/2018 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
02/24/2018 Crissy Field parkrun 5K San Francisco, CA What is Crissy Field Park Run? It is a 5K run-it's you against the clock. When is it? Every Saturday at 9:00am. Where is it? It takes place at 1199 East Beach St., SF.
02/24/2018 End of the Trail Half Marathon 13.1M, 10K Visalia, CA This may just be the flattest course in California! Whether you walk or run, join us for a memorable experience with a great route that starts and ends in downtown Visalia.
02/24/2018 Lost Trail Half Marathon & 5K 13.1M, 5K Granite Bay, CA TBD. The Lost Trail Half Marathon is a scenic single track trail race along the shoreline of Folsom Lake with many scenic views, and also offers a 5K Trail Run as well.
02/24/2018 Salmon Falls 50K 50K Coloma, CA The Salmon Falls 50K is a point to point ultra distance trail race. The race begins at the Magnolia Ranch Trail Head near Coloma.
02/24/2018 Support Blue Fresno 10K, 2M Fresno, CA You don’t have to risk your life day in and day out to keep our community safe. All you have to do is support those who do. Stand up and Run for the Blue!
02/24/2018 Victory Half Marathon 13.1M, 10K, 5K Richmond, CA The courses are flat and fast making them great for beginners or runners looking to set a personal record.
02/25/2018 Almond Blossom Run 10K, 5K Durham, CA Both courses start and finish at the rose garden in front of Durham High School and follow flat paved roads among beautiful blooming almond orchards.
02/25/2018 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA TBD. All those interested in running, whether beginner, walker, jogger or competitive racer are welcome to join our monthly runs.
02/25/2018 Surfer's Path 10k & 5k 10K, 5K Santa Cruz, CA Participants are treated to beachfront and bluff views of the Monterey Bay along the majestic Santa Cruz County coastline.
02/28/2018 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.

March 2018

Date Event Distance Location Description
03/03/2018 Blossom Trail 10K Run 10K, 2M Sanger, CA TBD. Mark the date and join us on this flat course that takes runners through Sanger's charming downtown and through the outskirts of town where the blossoms overflow!
03/03/2018 Crissy Field Park Run 5K San Francisco, CA It is a 5k run- it's you against the clock. Every Saturday at 9:00am.
03/03/2018 NorCal John Frank Memorial Run 10M, 3M, 1M Redding, CA The 1-mile course is flat. The 3 and 10-mile races are on the Sacramento River Trail and are mostly flat surfaces.
03/03/2018 San Joaquin River Trail Half Marathon & 10K 13.1M, 10K Auberry, CA With approximately 2500' of elevation gain this course won't be your typical stroll in the park-but this course could easily become your new favorite.
03/03/2018 Sanborn Park Trail Challenge 13.1M, 9M, 4.2M Saratoga, CA Course description, 95% single track, extremely mountainous, very technical, lushly wooded, mixed evergreen forest.
03/03/2018 Way Too Cool 50K Endurance Run 50K Cool, CA This race has become the most sought after 50K in the United States for veterans and novices alike.
03/04/2018 Livermore Half Marathon 13.1M, 5K Livermore, CA To celebrate the completion of 13.1 miles, we are bringing some of the finest local wineries and breweries for tasting.
03/04/2018 Napa Valley Marathon 26.2M, 5K Napa, CA The Napa Valley Marathon boasts one of the most beautiful courses in the world and is known as the "Biggest Little Marathon in the West".
03/04/2018 Santa Cruz Half Marathon 13.1M, 10K, 5K Santa Cruz, CA TBD. Santa Cruz Half Marathon, 10k & 5k.
03/07/2018 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/10/2018 Chanoko Trail Runs 50K, 31K, 5M Granite Bay, CA Run Granite Beach's most popular running trail!
03/10/2018 Color-5K Daly City 5K Daly City, CA A charity run for everyone.
03/10/2018 Crissy Field Park Run 5K San Francisco, CA It is a 5k run- it's you against the clock. Every Saturday at 9:00am.
03/10/2018 Marin Ultra Challenge 50M, 50K, 25K Sausalito, CA Our premier Marin County long distance trail race delivers ample hills and sweeping descents. The meticulous design of each course makes it physically demanding and exceptionally beautiful.
03/10/2018 Revolution Run 10K, 5K, 1M Roseville, CA The Revolution Run offers a 10K, 5K, & 1 Mile run/walk to fit everyone's fitness level.
03/10/2018 Shamrock 'n 10K, 5K & Leprechaun Dash 10K, 5K Sacramento, CA Run/walk the 5k or 10k and then enjoy watching the little ones chase a Leprechaun for the 1/2 mile Dash.
03/11/2018 Ilsanjo Classic 10-Miler & Neo-Classic 4-Miler 10M, 4M, 1K Santa Rosa, CA This course travels along the bike paths and trails of Howarth, Spring Lake and Annadel Park.
03/11/2018 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.
03/11/2018 Shamrock'n Half Marathon 13.1M Sacramento, CA 13.1 is filled with fun! Live music, crazy costumes, onfield finish, post-race beer and food. It's a party you don't want to miss!
03/14/2018 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/17/2018 Badger Cove Half Marathon 13.1M, 10K, 5K Livermore, CA Bringing the luck of the Irish and poking its head out just in time for Saint Patrick's Day, it's the Brazen Badger! Come join us at the picturesque Del Valle Regional Park in Livermore!
03/17/2018 Crissy Field Park Run 5K San Francisco, CA It is a 5k run- it's you against the clock. Every Saturday at 9:00am.
03/17/2018 Folsom South Side Trail Run 38M, 50K, 21M, 13.1M, 10K, 5K Folsom, CA All very appealing single track, great running, some technical sections.
03/17/2018 Kings County 4-H Color Me Green 5K 5K Kingsburg, CA During each run, participants are showered with colored dye as they pass through each marker point.
03/17/2018 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. The event is limited to 300 participants.
03/17/2018 She Is Beautiful 10K, 5K Santa Cruz, CA Our Santa Cruz race course runs along the coast and finishes oceanside with a post race festival on Lighthouse Point in Santa Cruz, CA.
03/17/2018 St. Patrick's Day Run 4M, 2M Fresno, CA Whether you run or walk the Shamrock 4Miler or our Green 2Miler you'll have a great time! Green shirt, green goodies & for those 21 & older Green Beer in our Lucky Pot of Gold Beer Garden.
03/17/2018 Whale Run 10K, 5K Ft. Bragg, CA This is an out and back race. The Whale Run starts and finishes in the heart of Fort Bragg in the Skunk Train parking lot.
03/17/2018 Zoom Quarry Lakes 13.1M, 10K, 5K Fremont, CA 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.
03/18/2018 Go Green Saint Patrick's Day Run 13.1M, 10K, 5K Los Gatos, CA The Go Green St. Patrick's Day Run is back for another great year. We will be offering a 5K, 10K and a Half Marathon distance again this year.
03/18/2018 Heavenly Half Marathon 13.1M Pine Ridge, CA You will enjoy an almost all downhill point to point course in the beautiful foothill town of Auberry.
03/21/2018 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/24/2018 Crissy Field Park Run 5K San Francisco, CA It is a 5k run- it's you against the clock. Every Saturday at 9:00am.
03/24/2018 Heart & Soles Run 10K, 6K Santa Clara, CA Love to run? Hit the pavement in support of children's health and wellness at the Lam Research Heart and Soles Run. This is a race you won't forget!
03/24/2018 Rabbit Chase Half Marathon & 10K 13.1M, 10K Mill Valley, CA Experience portions of Muir Woods, the famed Dipsea course and drop dead gorgeous views of the Pacific.
03/24/2018 Salomon San Francisco 13.1M, 10K, 5K San Francisco, CA All races start/finish at East Beach and head West along the popular Golden Gate Promenade.
03/25/2018 Fresno Donut Run 5K Fresno, CA Join us for a fun Donut Themed 5K run/walk at Woodward Park! Not only will runners be treated to the best Donuts after the race you will also earn your very own Donut Medal!
03/25/2018 Hellyer Half Marathon 13.1M, 10K, 5K San Jose, CA With a mildly rolling course hugging Cottonwood Lake and then Coyote Creek, this race was made for first-timers and those looking to break through with a new personal record!
03/25/2018 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.
03/25/2018 Run for Zimbabwe Orphans 1M Mountain View, CA This family event is held each spring at St. Joseph School in Mountain View, Ca., and benefits Makumbi Children’s Home in Zimbabwe.
03/25/2018 Tent City Marathon 26.2M, 13.1M, 10K, 5K Atascadero, CA We have put together an unforgettable race experience! There will be free race photos, finisher's beer or cupcakes, on-course entertainment, aid stations, post race live music and a racer's TLC tent.
03/25/2018 The Giving Trail 10K/5K Memorial Run 10K, 5K Raymond, CA The cross country run winds through the beautiful foothills of the Sierra's and the historic town of Raymond.
03/25/2018 Wildflower Run 10K, 5K Morgan Hill, CA 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.
03/28/2018 Fog City Run 5K San Francisco, CA A hilly 5km(ish) route through the Marina neighborhood and the Presidio.
03/31/2018 Antioch Rotary Club Bunny Hop 5K 5K Antioch, CA The race is on soft trail through Dow wetlands. There will be live enthusiastic entertainers from the local high schools. There will be an Easter Bunny available for photos!
03/31/2018 Big Bunny 5K 5K Cupertino, CA Whether you’re a competitive runner, active walker, or just looking for a fun activity to do with your friends and family, anyone can participate in the 5K.
03/31/2018 Crissy Field Parkrun 5K San Francisco, CA It is a 5k run - it's you against the clock. Every Saturday at 9:00am.
03/31/2018 Golden Gate Headlands Marathon 26.2M, 13.1M, 10K Sausalito, CA The course is a combination of single track hiking trails and fire roads. The event is limited to 400 participants.
03/31/2018 Insane Inflatable 5K Sacramento 5K Sacramento, CA Get “pumped up” for a course filled with the world’s largest and most extreme inflatable obstacles ever created. Here’s your chance to be a kid at heart, and insane by choice.

April 2018

Date Event Distance Location Description
04/01/2018 Loop de Loop & Relay 14M Santa Rosa, CA A foolishly challenging double loop up and down Annadel State Park trails. Run the loop one direction, then the other.
04/04/2018 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido.
04/07/2018 American River 50 Mile Endurance Run 50M, 26.2M, 13.1M Sacramento, CA American River has become the second largest 50 miler in the United States. The race attracts both veterans and novices alike.
04/07/2018 Ayala Cove Trail Run 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.
04/07/2018 Building Bridges Super ’70s 5K and 10K Fun Run 10K, 5K Bakersfield, CA Get into your favorite vintage or retro-style ’70s clothing and run your choice of a 5 or 10k on a mix of trail and bike path around California Living Museum.
04/07/2018 Crissy Field Parkrun 5K San Francisco, CA It is a 5km run - it's you against the clock. Every Saturday at 9:00am.
04/07/2018 King Richard Annual Trail Run 13.1M, 10K, 5K San Jose, CA Santa Teresa County Park is located at the southern end of the Santa Teresa Hills.
04/07/2018 Napa Valley 50K 50K Calistoga, CA TBD. Runners on the 50k course will be treated rocky and steep uphill sections to bring participants to expansive views of the Napa Valley.
04/07/2018 Wind Wolves Preserve Trail Run 10M, 10K Bakersfield, CA The new date will let enjoy the great trails with some cooler weather and when the hills are covered in Spring colors.
04/07/2018 Woodside Crossover 50K, 35K, 13.1M, 10K Woodside, CA Participants will enjoy the beautiful trails under the canopy of towering 2nd and 3rd generation, moss covered redwoods as they clip past the many small streams and gullies along the way.
04/08/2018 California Classic Half Marathon 13.1M, 5K Fresno, CA We will host 3,000 runners in our Half Marathon and Relay as participants run through African Adventure in Fresno Chaffee Zoo, with a grand finish along home-plate inside Chukchansi Stadium.
04/08/2018 Credit Union SACTOWN 10 Mile 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.”
04/08/2018 Rabbit Run 10K, 5K Sacramento, CA The Natomas Rabbit Run is an annual 5K/10K race hosted by The River Community Services, a non-profit organization devoted to benefitting the children and families of Natomas.
04/08/2018 Rock 'n' Roll San Francisco 13.1M San Francisco, CA Tour San Francisco by foot, taking in everything the city has to offer on the entertainment lined course.
04/08/2018 Run Rocklin 13.1M, 12K, 5K Rocklin, CA The event has been designed for the casual walker to the competitive athlete, providing safe courses, activities for the family and top race management.
04/08/2018 Run With The Heroes 5K Madera, CA The 5k is chip-timed. The route will circle the hospital twice and is stroller/wheelchair friendly.
04/08/2018 Russian River Mud Run 10K, 5K Forestville, CA The 8th annual Russian River Mud Run has a challenge for every level!
04/08/2018 Trail Less Traveled Trail Runs 5K Oroville, CA Hidden in the foothills around Lake Oroville, the Kelly Ridge and Dan Beebe trails offer miles of twisting terrain to challenge runners of all levels and test seasoned trails fans.
04/11/2018 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido.
04/14/2018 Crissy Field Parkrun 5K San Francisco, CA It is a 5km run - it's you against the clock. Every Saturday at 9:00am.
04/14/2018 Diablo Trails Challenge 50K, 13.1M, 10K, 5K Walnut Creek, CA Diablo Trails Challenge has a run for everyone from those hitting the trail for the first time to the experienced ultra-runners.
04/14/2018 Insane Inflatable 5K San Jose 5K San Jose, CA Get ready to experience the most fun, wild and insane obstacle run in the world. Get “pumped up” for a course filled with the world’s largest and most extreme inflatable obstacles ever created.
04/14/2018 IPA 10K 10K, 1M Sebastopol, CA At the finish, runners and their guests are treated to the beer mile invitational and beer & music festival at the Barlow.
04/14/2018 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!
04/14/2018 Placerville Path Run 13.1M, 10K, 5K Placerville, CA Courses start & finish in beautiful historic Placerville CA.
04/15/2018 Dionysus Dash 5K Livermore, CA This event is for the novice and avid runners, wine tasters and Greek walkers.
04/15/2018 Divas Half Marathon 13.1M, 5K Burlingame, CA Get glam at one of our races while enjoying a great run in some of the country's best vacation destinations. Save 15% with code SWEATTRACKER18.
04/15/2018 Grizzly Peak Trail Run 50K, 26.2M, 30K, 13.1M, 10K Berkeley, CA Start at Lake Anza and travel through popular Tilden Regional Park in the Berkeley hills. There is a 9-hour time limit for all distances.
04/15/2018 Pleasanton Run for Education 15K, 10K, 5K Pleasanton, CA See the best Pleasanton has to offer on this flat, fast course.
04/15/2018 Sacramento Zoo Zoom 10K, 5K Sacramento, CA The 5K run/walk & 10K run will lead participants through beautiful Land Park and finish near the back entrance to the Zoo.
04/18/2018 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido.
04/19/2018 SAC State 5K 5K Sacramento, CA The Sac State 5K Fun Run is an event for every physical level and ability!
04/20/2018 Color Fun Fest - Sacramento 5K Sacramento, CA Wear your whitest running clothes and get ready to be showered with over 10,000 pounds of color as you navigate the 1.8 mile course.
04/21/2018 Crissy Field Parkrun 5K San Francisco, CA It is a 5km run - it's you against the clock. Every Saturday at 9:00am.
04/21/2018 Fight for Air Climb TBD San Francisco, CA Participants raise funds to support the mission of the American Lung Association while training to climb the stairs of a skyscraper, stadium, or other landmark building.
04/21/2018 Folsom Lake Trail Run 50K, 35K, 13.1M, 10K Folsom, CA This is one of our “flatter” courses, but there is still plenty of excitement and every race is as challenging as you make it.
04/21/2018 Ruth Anderson Ultras 100K, 50M, 50K San Francisco, CA The surface is 4.475 miles of paved bike path with dirt shoulders (per loop). There are two aid stations per loop.
04/21/2018 Ruth McKenzie Preserve 13.1M, 10K, 5K Friant, CA Half Marathon participants will be treated to beautiful views and rolling hills.
04/21/2018 Wicked Wine Run - Fresno 5K, 1K Sanger, CA Race through the vineyards and trails of the beautiful Kings River Winery.
04/22/2018 Airport Runway Run 10K, 5K, 2K San Carlos, CA The start of the race route is the San Carlos Airport runway!
04/22/2018 Benicia Education Foundation's Run for Education 10K, 5K, 1M Benicia, CA TBD. The BEF Run for Education is a fantastic, family-friendly event for first-time runners to expert athletes.
04/22/2018 LMJS Fourth Sunday Race 15K, 10K, 5K Oakland, CA Every month except February, March, and June.
04/22/2018 Napa Valley Silverado Half Marathon 13.1M, 10K, 5K Calistoga, CA There is no better place to experience the Napa Valley. This exciting road race is flat and fast with only two minor hills. The event is limited to 1000 participants.
04/22/2018 Presidio 10 10M, 10K, 5K San Francisco, CA Runners can run either a 10 mile, 10 kilometer, or a 5 kilometer scenic course starting and finishing at Crissy field.
04/22/2018 Race For The Stars 5K Sacramento, CA Get ready for some serious fun with the Race for the Stars. This is your opportunity to support our children and raise money for direct-to-teacher grants funded for high quality educational projects.
04/22/2018 Run Because You Can 10K, 5K Sacramento, CA Start in the quad on the Sacramento City College Campus.
04/25/2018 Fog City Run 5K San Francisco, CA The course is a hilly 5km (ish) route through the Marina Neighborhood and the Presido.
04/28/2018 American River Parkway Half Marathon 13.1M, 5K Sacramento, CA The only half marathon in the world with two courses – one just for runners and one just for walkers.
04/28/2018 Bad Ass Beer Run 5K, 1K Camino, CA A 5K fun run like no other & a 1K that includes an obstacle course along the way, and most important a finish line that gets you closer to a taste of beer served to finishers in a logoed souvenir beer glass.
04/28/2018 By the Bay 3K 3K Pacific Grove, CA Pacific Grove’s By-the-Bay 3K is a fun run on an out-and-back course next to the Monterey Bay that is held on the Saturday of Marathon race weekend.
04/28/2018 Crissy Field Parkrun 5K San Francisco, CA It is a 5km run - it's you against the clock. Every Saturday at 9:00am.
04/28/2018 Kern River Trail Run 10M, 10K, 5K Bakersfield, CA 10 Mile, 10k, and 5k TRAIL RUN in the hills around Hart Park.
04/28/2018 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!
04/28/2018 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.
04/28/2018 Sierra Azul Trail Challenge 50M, 26.2M, 18M, 13.1M, 10K, 5K Los Gatos, CA TBD. 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.
04/28/2018 Western Pacific Marathon 26.2M, 13.1M, 5K Fremont, CA Trails are primarily fire trail and gravel with short paved sections. Hills are nearly non-existent, so bring on the speed!
04/29/2018 Big Sur International Marathon 26.2M, 21M, 11M, 12K, 5K, 3K Carmel, CA This is a challenging course with rolling hills, a steady two mile climb between miles 10 and 12 and often strong headwinds in certain locations.
04/29/2018 Marin County Half Marathon 13.1M, 10K, 5K San Rafael, CA The Sustainable Sports Foundation addresses the need to promote local athletic events that encourage a healthy lifestyle and supports the values of sustainability and giving back to the community.
04/29/2018 Run 4 Roseville 5K Roseville, CA This is a fun filled family event. What better way to get your child started on the path to running!

May 2018

Date Event Distance Location Description
05/02/2018 Fog City Run 5K San Francisco, CA The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio.
05/05/2018 Cinco K Run Fiesta 10K, 5K Fairfield, CA The Cinco K Run Fiesta is a Cinco de Mayo themed celebration featuring a festive family atmosphere with a run, walk, food, dancing and entertainment
05/05/2018 Crissy Field Park Run 5K San Francisco, CA It is a 5km run - it's you against the clock.
05/05/2018 Folsom Lake Falcon Crest Trail Run 13.1M, 8M, 10K, 5K El Dorado Hills, CA This race is run in the beautiful,awesome foothills on El Dorado Hills. The area has incredible oak trees, green grass and is loaded with single track trails paralleling Folsom Lake.
05/05/2018 Golden Gate Duathlon and 5 Mile Run Walk 5M El Sobrante, CA This year we will feature a Short and Long Duathlon - Individual or RELAY Plus a Separate 5 Mile Run/Walk
05/05/2018 Golden Gate Relay 190M San Francisco, CA Gather your friends or enemies (teams of 12). Decorate your vans. Dress in your best (costumes optional). "It's the most fun 24 feet can have in the best place on earth."
05/05/2018 Kerman Almond Festival Scholarship Fun Run 5K Kerman, CA The Kerman Almond Festival Scholarship Fun Run/Walk is a family event with a Kids run for 12 and under and a 5K Walk or Run for participants 13 and older.
05/05/2018 Lincoln Pace Race 10K, 5K, Kids Run Lincoln, CA Promoting ageless commitment to exercise is the theme of our event in the beautiful community of Sun City Lincoln Hills.
05/05/2018 Mermaid Run East Bay 18M, 13.1M, 10K, 5K Fremont, CA The course is virtually flat making it ideal to kick up your heels and enjoy the fresh air and positive vibes.
05/05/2018 Miwok 100K 100K Stinson Beach, CA The course is very hilly with spectacular views of SF and the Golden Gate Bridge, Mt. Tamalpais and the Point Reyes National Seashore.
05/05/2018 Ripon's Run to the Ribbon 13.1M, 10K, 5K Ripon, CA Run the historic tree-lined street in the heart of Ripon or enjoy the scenic agricultural country side depending on your course choice.
05/05/2018 Wild Wild West Marathon 50M, 50K, 26M, 10M Lone Pine, CA This trail race has something for every runner and is walker friendly. If you want clean air, safe surroundings and beautiful scenery, join us!
05/05/2018 Wildflower Experience 10K, 5K Bradley, CA Now offering a 5k Run, 10k Run, Trail Run, Stand up Paddle and there will be more to come.
05/06/2018 Avenue of the Giants Marathon 26.2M, 13.1M, 10K Weott, CA Run with us in the majestic redwoods. This course is one of the most scenic courses in the country.
05/06/2018 Aztec Run 5K Oakland, CA This event benefits the educational programs of Spanish Speaking Citizenship Foundation. The course is around beautiful Lake Merritt.
05/06/2018 Big Bear Run 5K Atherton, CA This professionally-timed, fun-filled event gathers families, neighbors, friends, students, athletes and businesses together in one of the community's most beloved events.
05/06/2018 Celebration of Life 5K 5K Chico, CA The Celebration of Life 5K is an event benefitting and raising awareness for Hospice and Palliative Care in Butte County. Come out and celebrate life with us at this run.
05/06/2018 Fresno Urban Run 5K Fresno, CA Starting inside Chukchansi Park, the challenge will be climbing every step of the stadium, running up and down a six story circular garage, one mile run, up and down Urban Hill and finally climbing to the top of a ten story building.
05/06/2018 Horseshoe Lake Trail Run 50K, 26.2M, 13.1M, 5M Palo Alto, CA The majority of the course is along the Bay Area Ridge Trail with spectacular views of the Pacific Ocean and Santa Cruz Mountains.
05/06/2018 Jackrabbit Derby 3M Santa Rosa, CA This is a cross country trail race on dirt trails and paved bike paths. The start and finish is near the boat ramp below the Jackrabbit Picnic Area, Spring Lake Regional Park.
05/06/2018 Run to Play 10K, 5K Castro Valley, CA Run to Play is a family-friendly, dog friendly event. Participants can race to the finish for a medal or stroll along the route with some friends and coffee in hand.
05/06/2018 Stride for Awareness 5K San Mateo, CA 5K Run/Walk and Resource Faire for Student Wellness.
05/09/2018 Fog City Run 5K San Francisco, CA The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio.
05/12/2018 Cinderella Trail Run 50K, 26.2M, 30K, 13.1M, 5M Oakland, CA The course travels through beautiful Joaquin Miller Park to Redwood Regional Park. Enjoy the spectacular views of the Oakland Hills and Bay Area along the way.
05/12/2018 Color Me Rad- Santa Rosa 5K Santa Rosa, CA Color Me Rad is a 5K that fires off in a blaze of color bombs, color cannons, color mortars and multi-toned courses.
05/12/2018 Crissy Field Park Run 5K San Francisco, CA We all run for our own enjoyment. Please come along and join in whatever your pace!
05/12/2018 Girls on the Run 5K 5K Sacramento, CA GOTR uses running to inspire and motivate girls, encourage lifelong health and fitness and build confidence through accomplishment.
05/12/2018 Komen Sacramento Race For The Cure 10K, 5K, 1M Sacrmento, CA The Susan G. Komen Promise: To save lives and end breast cancer forever by empowering people, ensuring quality care for all and energizing science to find the cure.
05/12/2018 Lone Coyote 8M Sausalito, CA An intensely hard, intensely beautiful eight mile race on the fire roads and trails of the Golden Gate National Recreation Area. This is an incredible course.
05/12/2018 Mother's Day Run 13.1M, 5M, 5K El Sobrante, CA We will honor mothers and all they do for us and all they mean to us. WE LOVE YOU MOM!
05/12/2018 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.
05/12/2018 Paiute Meadows Trail Run 50K, 13.1M, 4.5M Susanville, CA Exclusively on single-track trails, runners experience breathtaking views, fully-stocked Aid Stations, excellent race swag, and a first-class finish line party!
05/12/2018 Quicksilver 100K and 50K 100K, 50K San Jose, CA The 2018 Quicksilver 100k race is a Western States 100 Mile Endurance Run qualifier!
05/12/2018 Shasta Mud Run 10K, 5K Redding, CA Come out to run, crawl, climb, splash and just have fun! Get ready to get just what you asked for…even MORE MUDDY!!!!
05/12/2018 Trail Run at Sly Park 50K, 20M, 13.1M, 10M, 5K Pollack Pines, CA TBD. Great running, some technical sections, roots, rocks, very challenging course, no big climbs or long down hills.
05/12/2018 Waves & Whales 5K Trail Run 5K Point Arena, CA Take full advantage of the location of the course where it will make its way to the coast and follow the bluffs and winding back into the pine and cypress forest.
05/12/2018 Wildcat Half Marathon 13.1M, 10K, 5K El Sobrante, CA Views of San Francisco, the Golden Gate Bridge, Alcatraz, Mount Tamalpais, the Bay and even the ocean await you. A run you won't soon forget!
05/12/2018 Willow Glen 5K 5K San Jose, CA TBD. Local spectators cheer racers on as they breeze through a certified flat and fast course on the quaint streets of Willow Glen.
05/12/2018 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.
05/13/2018 Mother's Day Run 10K, 5K Watsonville, CA Stay tuned for details regarding the Annual Mother’s Day Run/Walk for Shelter to be held on Mother's Day.
05/13/2018 Mother’s Day Coed 5K 5K Granite Bay, CA There will be a Coed 5K so that sons, husbands and boyfriends can race with you. Listening devices of any kind are not allowed.
05/14/2018 Support the Spouses and Run For Fun 5K Travis AFB, CA TBD. We are starting and ending at the Balfour Beatty Community Center. You will want to join us and reap the benefits of running with your spouse!
05/16/2018 Fog City Run 5K SanFrancisco, CA The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio.
05/16/2018 Tilden Tough Ten 10M Berkeley, CA Are you tough enough? The East Bay Triple Crown Trail Championships is a series of unique and challenging trail races every spring in the beautiful hills of the East Bay.
05/19/2018 Ancient Redwood Running Festival 10M, 5M Philo, CA The race course consists of a 5-mile loop following nearly every trail in the park. Choose the 5 or 10 mile fun runs, or test yourself with our timed event format for 6 or 12 hours.
05/19/2018 Armed Forces Day Run 10K, 5K San Jose, CA The race takes place furing the Armed Forces Day festival so expect a post race festival in the park with live bands, a ton of vendors, and activities for the entire family!
05/19/2018 Blacklight San Jose 5K San Jose, CA This run is none other than the brightest, most fun 5K out there. We welcome any and all participants looking for a glowing good time.
05/19/2018 Chocolate Festival Fun Run 5K, 1M Oakdale CA Join us for a fun filled day or week-end of chocolate festivities. You will find a variety of chocolate to satisfy every palate.
05/19/2018 Crissy Field Park Run 5K San Francisco, CA We all run for our own enjoyment. Please come along and join in whatever your pace!
05/19/2018 Dala Horse Trot 10K, 2M Kingsburg, CA This race has the tradition of being one of the largest 10K races in the Valley. Plan on hanging out afterwards for the Kingsburg Swedish Festival.
05/19/2018 Dog Tag Dash 5K Kern, CA The Dog Tag Dash and Fun Run sponsored by the Bakersfield Track Club benefits the Patriots of Kern, a local 501C3 which provides assistance to veterans.
05/19/2018 Girls on the Run 5K 5K Los Gatos, CA The 5K is open to EVERYONE in the community: men, women, girls and boys, runners and walkers. This event is a non-competitive, non-timed event.
05/19/2018 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.
05/19/2018 San Francisco 50/50 Endurance Runs 50M, 50K, 26M, 10M Sausalito, CA 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.
05/19/2018 Terrain Race San Jose 10K, 5K San Jose, CA Crawl over obstacles and through mud pits at Santa Clara County Fairgrounds. Conquer over 20 obstacles with friends for the race of your life!
05/19/2018 Woodside King's Mountain Half Marathon 13.1M, 5M Woodside, CA The scenic course may humble you with its 1,880' climbing and descending. At the same time, the remarkable surroundings will energize you as you navigate the lush hiking trails of the Santa Cruz Mountains.
05/20/2018 'Lil Mud Runner Kids & Family Mud Run 2018 1M Tracy, CA Run, duck, climb, slide and crawl through the muddiest one-mile obstacle course you've ever seen at the 7th Annual ‘Lil Mud Runner Kids & Family Mud Run on Sunday, May 20.
05/20/2018 Avenue of the Vines 13.1M, 5K Acampo, CA Our flat, fast and friendly courses run past the beautiful scenery of grapevines and mustard seed in full bloom.
05/20/2018 Bay to Breakers 12K San Francisco, CA Bay to Breakers has run continuously for over 100 years as a staple to the City by the Bay. With a starting point near the San Francisco Bay, a few blocks from The Embarcadero, the iconic 12K race runs west through the city and finishes at the Great Highway where breakers crash onto the Pacific Coast’s Ocean Beach. A quintessential San Francisco experience since 1912, the race is interwoven into the fabric of the city and is a true reflection and celebration of life between the breakers and the Bay.
05/20/2018 Davis Pride Run for Equality 10K, 5K Davis, CA The Run for Equality is a family friendly timed 5K and 10K run/walk for all ages and fitness levels.
05/20/2018 Ohlone 50K Trail Run 50K Fremont, CA The Ohlone 50K is a point-to-point race traversing the entire Ohlone Wilderness Trail, a tough 31 mile distance run on trails and fire roads.
05/20/2018 Run /Walk for Equality 10K, 5K Davis, CA The sun will be shining, the air will be fresh and people will be OUT. Join us for a brisk run-wallk for the entire family through picturesque Davis' renowned greenbelts. Erasing Hate One Step At A Time!
05/20/2018 Run Around the Rice 10K, 5K Chico, CA This is an educational run to let people in on the cycle of prepping, planting and harvesting rice. The fields should be planted or in the process of when the run is happening.
05/20/2018 Surfers Path Marathon & Capitola Half Marathon 26.2M, 13.1M Santa Cruz, CA Miles melt away as you pass famous surf breaks along the Surfers Path. The races are limited…register today!
05/23/2018 Fog City Run 5K San Francisco, CA The Fog City Run is a hilly 5km (ish) route through the marina neighborhood and the Presidio.
05/26/2018 Armed Forces Half Marathon 13.1 Concord, CA This is a fairly flat and fast out and back half marathon with two-thirds of the half marathon being run in the Naval Weapons Station. This course takes runners from the downtown Concord area up Willow Pass and into the Naval Weapons Station, formerly used as a munitions depot for several of the wars our nation fought in. Commonly referred to as Bunker City. Runners will begin their return portion of the half marathon with a small incline. It is here where runners will get an incredible panoramic view of the installation. This part of the course up until now, this has been strictly off-limits to civilians. S
05/26/2018 Crissy Field Park Run 5K San Francisco, CA We all run for our own enjoyment. Please come along and join in whatever your pace!
05/26/2018 Modesto Memorial Classic 5K, 1M Modesto, CA The 1M and 5K run/walks include a pancake breakfast at Tuolumne River Park for all paid runners.
05/26/2018 Nitro Trail 13.1M, 10K, 5K Pinole, CA With panoramic views of the bay, wildflowers, over 100 species of bird and eucalyptus woodlands, Point Pinole Regional Shoreline Park is truly the hidden gem of the East Bay.
05/26/2018 Rugged Maniac 5K Pleasanton, CA Sign up for the race and you’ll run our 3-mile course where you’ll climb towers of shipping containers, rocket down a 50’ water slide, bounce on trampolines, jump over fire, and more!
05/27/2018 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).
05/27/2018 Mare Island Bridge to Bridge 10K, 5K Vallejo, CA This will be a full morning of racing. It includes a 5K and 10K run across to the other side of the straight on historic Mare Island.
05/28/2018 Marin Memorial Day Races 10K, 5K Kentfield, CA Put your training to the test and run one of the fastest courses in the San Francisco Bay Area with a dramatic stadium finish. We guarantee an exciting and highly competiitive field.
05/28/2018 Run Read Thrive 5K Costa Mesa, CA Join us for this amazing fun run for Ethan.
05/28/2018 Run to Remember 5K Ahwahnee, CA The 1 mile run/walk and 5k run start and end at the Ahwahnee Hills Regional Park. The race meanders along the park’s dirt trails providing beautiful views of the mountains and adjacent meadows.
05/30/2018 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