Trail Running calendar near Calistoga 2025-2026

The The John Lawson Tamalpa Challenge will take place in Santa Venetia on Sunday 12 October 2025. You can run between 4 and 4 miles.

The Lake Sonoma 100K and 55K, also known as the California Fall Classic, is a challenging ultramarathon held at Lake Sonoma, California, set amidst the scenic wine country during harvest season. The event features two distances—100 kilometers and 55 kilometers—on demanding courses that traverse mile..

Willow Hills XC is an annual 5K cross country race held at Willow Hill Reservoir Community Park near Folsom High School in Folsom, California. The course features two loops of rolling hills around a water reservoir, providing a challenging and scenic terrain for runners. The event is part of the Pac..

The Diablo Summit Stomp is a trail running event held in Walnut Creek, California, featuring distances of 30K, half marathon, 10K, and 5K. The courses traverse dirt trails starting from Castle Rock Park and extend into Mount Diablo State Park, with the 30K route reaching the summit of Mount Diablo...

The California Fall Classic at Lake Sonoma, held in Healdsburg, CA, offers two challenging ultramarathon distances: 100K and 55K. Set amidst the scenic wine country during harvest season, the courses feature relentless single-track trails with stunning views of Lake Sonoma. The 100K serves as a West..

The Haunted Hills 10K in Redwood City is a unique nighttime running event featuring a spooky, fun atmosphere perfect for adults and families. Participants run in teams of 1 to 5, equipped with headlamps or flashlights, as they navigate through wickedly decorated neighborhoods. The course includes 36..

The Napa Fall Wine Country Marathon will take place in Calistoga on Saturday 25 October 2025. You can run between 10 and 26 miles.

The Oakland Hills Trail Run, held at Redwood Regional Park in Oakland, California, offers three challenging distances: 10K, half marathon, and 35K ultramarathon. Set in a serene redwood forest with towering 150-foot coast redwoods, the course features technical dirt trails and fire roads with signif..

The Rio Del Lago 100 Mile Endurance Run will take place in Granite Bay on Saturday 1 November 2025. You can run between 31 and 100 miles.

The Oakland Tech 5km Fundraiser Race and 1 Mile Fun Run/Walk takes place at Joaquin Miller Park Meadow in Oakland, California. This event features a 5K trail run and a 1-mile fun run/walk, offering participants scenic views with towering trees and a course that is both enjoyable for casual runners a..

The NorCal Backyard Ultra, held at Beals Point in Granite Bay, CA, is a challenging endurance running event featuring a 4.2-mile loop course along scenic singletrack trails and lakefront views at Folsom Lake. The main event, Last Person Standing, requires runners to complete a loop every hour until..

The Lake Chabot Trail Run, held in Castro Valley, California, offers a variety of distances including 8K, Half Marathon, 30K, Marathon, 50K, and a free Kid's Run for children six and under. The course begins at the Lake Chabot Regional Park Marina and loops around the scenic Lake Chabot reservoir an..

The Mt. Tam Trail Run, held at Stinson Beach, California, offers challenging trail races including 10K, half marathon, 30K, and 50K distances. The course features steep climbs up Mount Tamalpais with stunning views, followed by scenic trails through the Headlands, finishing back at the beach.The eve..

The Golden Gate Trail Classic will take place in San Francisco from Saturday 22 November 2025 to Sunday 23 November 2025. You can run between 15 and 50 miles.

The Quad Dipsea is a challenging 28.4-mile trail race held in Mill Valley, California, featuring approximately 9,000 feet of vertical gain. The course starts at Old Mill Park and includes steep stairs, rugged hills, and scenic sections such as Muir Woods, Dynamite, The Hogsback, Cardiac Hill, Steep..

The Quarry Turkey Half Marathon is a family-friendly Thanksgiving weekend running event held at Quarry Lakes Regional Park in Fremont. The race offers a half marathon, 10K, and 5K distances, all featuring fast, mostly-flat courses on beautiful trails. A special free "Little Turkeys" sprint of about..

The Krampus Cross Country is a festive running event held in San Francisco, California, featuring live and virtual options. Participants can choose from three distances: a 5K, 10K, or the challenging Naughty Nine Miler. The live races start at the Ecology Trail Head at the end of Barnard Avenue, wit..

The Peacock Gap Trail Run, hosted by Inside Trail Racing, takes place at China Camp State Park in San Rafael, California. This scenic event offers three distances: 10K, half marathon, and 30K, featuring twisting single-track trails with views of Mt. Tam, San Pablo Bay, and San Francisco Bay.The cour..

The ZombieRunner Quarry Lakes event, held at Quarry Lakes Regional Recreation Area in Fremont, CA, offers a variety of race distances including 5K, 10K, Half Marathon, 30K, Marathon, and age-specific 5K and 10K races, plus a free Kid's Run for children 6 and under. The courses are flat, fast, and sc..

The Hunter S. Thompson Fear & Loathing is a unique ultra running event held annually in San Francisco, CA, since 1985. It offers two distances: a 50K and a 50-mile single-loop course starting and finishing at Twin Peaks, the city's highest viewpoint.The route covers iconic city landmarks and feature..