Trail Running calendar near Chico 2026-2027

Wild Rose Half Marathon & 5K in Roseville on May 16, 2026 offers a half marathon on the Pleasant Grove Bike Path and a 5K through William Hughes Park. Paved courses include multiple aid stations and post-race swag including a technical shir..

Experience the final 70 miles of the Western States trail during this three day training event featuring supported runs of 19, 20, and 32 miles through iconic canyon terrain and mountain climbs.

A 10km trail run on the Olmsted Loop at Auburn State Recreation Area in Cool, California on June 6, 2026. The race takes place the same day as the Coolest Ride and Tie and Equathon events.

The Cool Summer Night Run will take place in Cool on Saturday 6 June 2026. You can run 10 kilometers.

Scenic trail runs on the north shore of Lake Natoma in Fair Oaks with 5K, 10K and a kids run under 10. Hosted by the Fair Oaks Recreation & Park District, proceeds benefit the Rachel Anne Gray Memorial Scholarship.

Multiple trail distances take place on two scenic loops near Cool, California on June 13-14, 2026, with live tracking and chip timing. Routes combine single track and fire roads and range from a 5K up to 100K.

A 100 mile looped trail ultramarathon near Cool, California covering alternating 13.5 mile and 11.5 mile loops, with live tracking, timed cutoffs, aid stations, and finisher buckle, shirt, and medal.

A cupless trail race in the Susan River Canyon featuring a loop from Hobo Camp that uses the Bizz Johnson Trail outbound and flowy South Side singletrack on the return. Three distances are offered and all finishers receive a towel and medal..

A two-part Auburn event: a 100 person relay with each runner covering one mile on a mostly uphill trail, and a public 20 day challenge to complete 100 miles at any pace. Relay spots require a sub 10 minute mile; challengers earn a finisher..

Iron X is an extreme ironing half marathon in Auburn, CA where participants run the course and stop to iron a button up shirt at eight specified locations while carrying their own ironing gear and recording video proof.

A seven‑week series of Tuesday night fun runs in Redding from July 14 to August 25, 2026, with two distance options each week and a single punch card that covers all seven events.

Trail races around Downieville featuring 100K, 50K, and 25K courses on mostly singletrack with stocked aid stations, required gear for the 100K, limited local lodging, and distance specific awards.

Trail run in Auburn California on July 26, 2026 featuring 10.5 miles and 5.9 miles courses through single-track, dirt roads and a canal system with steep sections named Cardiac and Last Gasp.

A trail event at Granite Beach on August 23, 2026 offering 5K and 10K courses for runners and their dogs, with finisher medals and dog bandanas; aid stations provide drinks and gels and dogs have their own water.

Trail races at Mammoth Bar OHV Area in Auburn State Recreation Area on September 6, 2026. Options include a 13.1 mile half marathon and a 6.2 mile 10K, each with notable elevation gain and staffed aid stations.

A family-oriented mud run in Redding on September 12, 2026 featuring a course just under 5 km with obstacles, creek crossings, vendors, food, and children's activities. The event supports the Active 20-30 Club of Redding.

A looped endurance event in Auburn, California from September 18–21, 2026 offering timed runs from 6 to 72 hours, a 100 mile race, glow run, and relay options on a one mile loop with full aid support.

Trail runs at Granite Beach on Folsom Lake with new 10 mile and 5K courses, aid stations, age group awards, a finisher beer glass and a postrace meal.

Trail races along the Western States Trail near Auburn, California on September 27, 2026. Distances include a half marathon, 12K and 5K with electronic chip timing and finisher medals and t shirts.

A self guided 50K point to point course from South Yuba Campground to Bear Valley near Nevada City, CA, run any time from October 1 to 31, 2026. Runners complete the course in one continuous effort and submit an activity link within one wee..