Trail Running calendar near Saratoga 2025-2026

Run a scenic and rugged 50.7 mile trail ultramarathon around Fort Ord and Laguna Seca near Monterey, CA, with about 7,080 feet of climbing over two big loops. Expect aid stations, live timing and a custom finisher hat and medal.

Run scenic coastal trails at Fort Ord and Laguna Seca with 10K, 25K and 50K options featuring rolling dunes, dirt tracks and late climbs. Well stocked aid stations, live tracking and finisher medals for a quintessential California trail day..

Event overview The Mt. Umunhum Trail Conquest - Winter is a trail running event held at Almaden Quicksilver County Park, Hacienda Entrance, 21785 Almaden Rd, San Jose, CA 95120. The event offers multiple distances: 50K Marathon 30K 1/2 Mar..

Event details Bay Breeze is scheduled for February 14, 2026, at San Leandro Marina Park (14001 Monarch Bay Dr, San Leandro, CA). The event offers these distances: Half marathon 10K 5K All races start and finish at San Leandro Marina Park...

Enjoy challenging coastal mountain trails at the Montara Mountain Trail Run in Pacifica, with distances from 10K to 50K plus a Kid's Run. Scenic single track, stocked aid stations, and great trail views make it a must for trail lovers.

Take on scenic technical trails at Lake Chabot Regional Park in Castro Valley with distances from 5K to 50K. Aid stations, chip timing and a cupless format make this a true trail challenge for all levels.

Zoom Angel Island is a trail running event on Angel Island, accessible via chartered ferries from Tiburon, California, offering spectacular views of Marin County and San Francisco. Distances include 5 miles, 10 miles, 15 miles, plus a Kids..

Tackle iconic Marin Headlands and Mt Tamalpais on rugged coastal trails in the Marin Ultra Challenge, with 50 Mile and 50K options. Limited to 450 runners, the race offers live tracking, full aid stations, and finisher medals.

Redwood (Spring) Trail Run is held at the Chabot Space & Science Center in Oakland, California, featuring multiple distances from 5 miles up to 50K, plus a Half Marathon, Marathon, 30K, a 5K, and several youth events. The course winds throu..

Enjoy a scenic trail run along the historic Western Pacific route at Quarry Lakes in Fremont on March 28, 2026, with half marathon, 10K, 5K or remote entries. Brazen Racing welcomes runners, walkers and hikers on a mostly flat dirt and grav..

Event details The 41st annual Golden Gate Headlands race takes place on Saturday, April 4, 2026, at the Marin Headlands Visitor Center and Fort Barry area in Mill Valley, California. The event offers multiple distances: Marathon Half Marat..

Run scenic trails around Mount Diablo with distances from 5K to 50K, including a Brazen Ultra Half Series half marathon. Brazen Racing hosts this April event that benefits Save Mount Diablo and celebrates the region's protected open space.

Event overview The 35th annual Romancing the Island event takes place on April 11, 2026 at Angel Island State Park, Belvedere Tiburon, CA. The race offers two distances: Half Marathon - completes the island loop twice 10K - single loop aro..

Event overview Badger Cove Half Marathon/10K/5K 2026 takes place on April 18, 2026, at Del Valle Regional Park in Livermore, California. The event includes on-site race options at Lake Del Valle and a remote runner option. Hikers and walker..

Event The 2026 Mt. Tam Wild Boar Half Marathon & 10K takes place on April 25, 2026, at Mt. Tamalpais State Park in Mill Valley, California. The event is limited to 300 participants. Distances offered: Half Marathon 10K Course and logi..

Run the Miwok 100K from Stinson Beach through scenic Marin single track trails and big climbs. Run solo or as a four person relay; this UTMB index race and Western States qualifier champions sustainability.

2026 Stinson Beach/Muir Woods Marathon, Half Marathon & 7 Mile The event takes place on May 9, 2026, at Stinson Beach Parking Lot in Stinson Beach, California. It is the 36th annual edition and the field is limited to 300 participants...

Trailquake 2026 Trailquake 2026 takes place on May 10, 2026, at 16055 Sanborn Rd, Saratoga, CA. The event offers the following distances: Half marathon 10K 5K The event also includes remote runner and international remote runner options...

Napa Wilderness Trail Runs on May 16, 2026 at Skyline Wilderness Park offers 10K, 21K, 30K and 50K on scenic, rugged trails with steep climbs and sweeping valley views. Bring your own cup for touchless aid stations.

Tackle the Rim Rock 50 Mile Trail Challenge in Napa for a rugged, scenic test across oak forests and exposed ridgelines. Choose solo or two person relay and take on two big loops through Skyline Wilderness Park.