Trail Running calendar near Chico 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.

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.

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..

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.

A 50K trail run in Foresthill, California that follows sections of the Western States Trail on an out and back course. The route starts at Drivers Flat, turns at Dardanelles Creek, includes six aid stations and has a cutoff of 9 hours 30 mi..

A themed trail event in Cool, California offering 50K, 25K and 10K on marked courses with mapped routes, aid stations, live timing, participant shirts and finisher medals.

A trail race on March 28, 2026 at American River Overlook Park offering 5K, 10K, Half and 35K routes on Western States trail sections, with technical single-track, major climbs, cupless aid stations, chip timing, and a 400-runner capacity.

A women focused 10K in Auburn on April 11, 2026 featuring scenic trail loops, finisher shirts, age group awards and a raffle with four winners earning a trip to a women only running camp in Spain.

A multi-distance trail event in Pilot Hill, California on April 11, 2026, organized by Troy’s California Trail Runs, with courses on stony dirt paths across hilly terrain and lake views, offering distances from 5K to 50K.

The Outlands Endurance Race takes place on scenic trails at Folsom Lake's Peninsula Campground. Choose from 25K, 50K, or 50 mile distances on runnable single and double track. All runners get custom swag and a post race meal.

A 14.5 mile trail run near Bullards Bar Reservoir in Camptonville, CA, hosted by the Tahoe Hotshots. Proceeds go to the Wildland Firefighter Foundation and the course features three stocked aid stations plus a taco truck at the finish.

Trail races around Auburn, California, across the Western States Trail with four distances from 25 km to 161 km; the 100K awards Western States Golden Tickets and the event qualifies for UTMB World Series Finals.

A multi-distance trail event in Susanville, CA featuring single-track routes through meadows and pine forest, relay options, a kids mile, staffed aid stations, and a cupless policy.

Trail race in Cool, California on May 9, 2026 featuring single track, creek crossings, and varied terrain. Two distances are offered, **10.3 miles** and **5.8 miles**, and the event is limited to 600 participants.

Wild Rose Half Marathon & 5K The Wild Rose Half Marathon & 5K takes place in Roseville, California. The event starts and finishes at the Moksa Barrel House on Foothills Boulevard. The event offers three distances: Half Marathon: Th..

Experience the final 70 miles of the iconic Western States trail over Memorial Day weekend. This three-day camp features runs of 32, 19, and 20 miles with bus transport and aid. It's a popular preview, with over 750 runners typically partic..

A 10 km trail race in Cool, California on June 6, 2026, run on the Olmsted Loop Trail in Auburn State Recreation Area. Registration closes June 3, 2026.

A multi distance trail event near Cool California using two main loops to create races from a 5K to a 100K. Courses use single track and fire roads, include aid stations, live tracking, timing chips, and finisher medals and shirts.

A 100-mile trail race in Cool, California using repeated 13.5- and 11.5-mile loops, with single track and fire roads, aid stations, live tracking, a 37-hour finish cutoff, and pacers allowed after mile 38.5.

A trail race in Susanville with three loop distances that use the Bizz Johnson Trail and the Southside singletrack. The cupless event includes aid stations, limited parking options, a 150-runner cap, and finisher medal and towel.