Trail Running Calendar California 2026-2027

FOURmidable is a trail running event in Auburn, California offering 50K, 35.5K, half marathon and 13K races. Prize money is funded by runner donations matched up to $3,000, plus a $500 bonus for a 50K course-record break.

Trail race in San Pasqual Valley with 20 mile, half marathon and 10K options; the longer courses summit Raptor Ridge twice and most of the terrain is single track. Finish line features a free wine tasting with local vineyards.

Redtail Ridge at Lake Chabot on February 21, 2026 features 5K to 50K trail races on mixed dirt trails, fire roads and some paved sections. The event is chip timed, cupless, and limited to 500 runners.

Explore scenic trails at Folsom Lake with the Lost Trail Half Marathon and 5K. The well-marked courses offer lake views and wildflowers. Awards celebrate top finishers and age group performers.

Montara Mountain Trail Run in Pacifica on Feb 21, 2026 offers distances from a 10K to a 50K plus a free kids 50 yd dash, marked courses, aid stations every 6 to 7 miles, and a cupless hydration policy.

A trail event at Audubon Center at Debs Park on February 21, 2026 offering a 4 mile run and a 2K youth hill challenge. The route runs on rolling hills with narrow trails, is pet friendly, and includes hydration stations.

This trail run in Walnut Creek's Lime Ridge area features unmapped courses. Runners follow a map to find checkpoints, choosing their own path through oak trees and quarries. Snacks await at the finish.

Run for a cause at the Running for Warriors event in Clovis. This first annual event supports veteran-focused charities and features a 5k competitive run, a fun run/walk, and a 2-mile option. The course starts at California Health Sciences..

A point to point trail event near Coloma offering a 50K ultrarun and a new half marathon, organized by Coloma River Races to benefit Breakthrough T1D, with multiple aid stations, local finisher medals and age group awards.

Sycamore Canyon on Feb 28, 2026 is a loop course trail event at Goodman Ranch Sycamore Canyon Preserve near Poway, CA. It offers 100K and 50K as solo or four person relays and a half marathon; solo 100K entrants need a prior 50K or longer f..

Trail races at Tejon Ranch near Lebec California include 100k 50k 25k and 11k on fire roads with marked courses aid stations and chip timing. The event offers camping options a finish festival with food and a beer garden for 21 plus.

Trail event in Japatul Valley offering a Kids 2K plus 5K, 10K and 15K on private ranch trails. Team awards, long sleeve tech shirts and cookie medals are part of the event experience.

A chip timed trail event at Panorama Vista Preserve with 6K and 12K courses, hand made age group awards, event shirt, post race pancake breakfast, raffles, and a finisher medal.

The Zoom Angel Island will take place in Tiburon on Sunday 1 March 2026. You can run between 5 and 15 miles.

A 5K snowshoe walk and race at Camp Richardson in South Lake Tahoe on March 1, 2026. The machine groomed course crosses forest and mountain meadows and the event benefits Metavivor, a metastatic breast cancer organization.

Way Too Cool brings a 50K and a 10 mile trail run to Cool, California on March 7, 2026, over rolling hills with creek crossings and staffed aid stations. Entries include race shirt, finisher medallion, timing, on course nutrition, and post..

Trail event near La Honda, CA offering 10K, half marathon and 50K routes across Skyline, Russian Ridge and Monte Bello preserves, with varied surfaces, multiple aid stations and specified cutoffs.

A trail half marathon and 10K in Auberry, CA on March 7, 2026 with steep hills, about 2500 feet of climbing and mostly single-track trails. Aid stations, finisher medals, event shirts and age group awards are provided.

A community race day in Sanger, CA on March 7, 2026 featuring a flat 10K through downtown plus a range of runs and walks for adults and children, with packet pick-up in Fresno and Sanger; events run rain or shine.

This event combines a scenic 5K trail run or a one-mile fun run/walk with a Polar Plunge fundraiser. The runs take place before participants brave the waters at Granite Bay Main Beach to support Special Olympics Northern California.