California
California Trail Running Calendar 2026-2027
Explore the best trail runs in California for 2026-2027! Our updated list features 380 exciting trail runs across the region. Find your next trail run in California below and join the trail community at these great events!
January 2027
Trail races of 30K and 50K through the historic Calico Ghost Town and Calico Mountains on Sunday, January 24, 2027.
A 24 hour loop race in Perris, CA featuring repeated Molcajete loops, solo and four person team entries, with awards for top individuals and teams.
Mixed-surface races at Coyote Hills Regional Park in Fremont offering half marathon, 10K and 5K with aid stations, GPX files and a half-marathon hiker division.
Trail races in Calabasas on January 30, 2027 offering 100K, 50 mile, 50K, marathon and 30K distances with varied entry fees.
February 2027
Experience the coastal beauty of the Marin Headlands at the Golden Gate Trail Run. Choose from distances ranging from a 50K trail race to a fun kids dash with views of the Golden Gate Bridge and San Francisco.
Experience a winter run through the technical terrain of the Red Hills Recreation Area in the Sierra Foothills. Choose between six or twelve mile distances featuring water crossings and muddy trails in a scenic natural environment.
Escape from Folsom on February 6, 2027 at Granite Beach offers a 10 mile and a 5K on scenic trails beside Folsom Lake. Aid stations supply water and fuel and every finisher receives a custom medal.
Jed Smith Ultra Classic on February 6, 2027 is a USATF certified loop event on the American River Parkway offering 50 mile, 50 k, marathon, 30 k and half marathon distances with two aid stations and race day packet pick up.
A trail event in Big Dalton Canyon offering a 50K solo, a 4-person 50K relay, and a 10K loop, with over 9,000 feet of elevation and proceeds to the Wildland Firefighter Foundation.
A multi-distance event in Griffith Park with a flat, shaded 5K, a half marathon across major park trails including a final peak reward, an on-site expo and food trucks, and varied registration fees by race.
Two-day trail running event at Fort Ord National Monument near Salinas CA featuring 50K, 25K and 10K with cupless aid stations and electronic timing.
Two-day trail running event in Monterey featuring 50M, 50K, 25K and 10K courses through Fort Ord National Monument and Laguna Seca with multiple aid stations and awards.
A two day event at First Baptist Church in Santa Maria featuring a looped 5k and a timed 12 hour loop race, with on course aid, overnight food, and proceeds supporting the Elevate missions project.
Trail races at Daley Ranch on February 13, 2027 include a 50K (two 25K loops) and a half marathon, three fully stocked aid stations, defined cut off times, and pre race training runs.
Multiple distance trail races at Griffith Park on February 14, 2027 featuring dirt trail loops, an aid station, finisher medals, and group discounts.
A 10th annual trail race in San Pasqual Valley with three distances through vineyards and orange groves. Half and 20 mile courses summit Raptor Ridge twice and the finish features a free local wine tasting; field limited to 450.
Experience the unique Coastal Mountain Habitat and Pacific Coast views at this trail event in Pacifica. With distances from a kids dash to a 50K there are options for many different types of trail runners.
Experience a trail running event in Auburn featuring four major climbs and 6000 feet of elevation. Choose from distances ranging from 13km to 50km on a course with less than one mile of pavement.
Experience scenic lake views and wildflowers at Granite Beach during this trail event featuring a half marathon and 5K. Enjoy well stocked aid stations and earn a finisher medal on the trails of Folsom Lake.