Trail Running calendar near Chico 2026-2027

A 10 km trail run on the Olmsted Loop Trail in Cool, California on June 6, 2026. The route follows rolling hills beside the American River Canyon and includes a staffed aid station near mile 3.

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.

A multi-distance trail event in Cool, California on June 13 and 14, 2026 featuring 13.5 and 11.5 mile loops, live runner tracking, single track and fire road terrain, and finisher awards for every distance.

A 100-mile trail event on two alternating loops in Cool, California, totaling about 13,600 feet of elevation gain. The race features marked single track and fire roads, aid stations, chip timing with live tracking, and handcrafted finisher..

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 community 100 mile project in Auburn with two options: a 100 runner relay where each runner covers 1 mile, or a 100 mile in 20 days individual challenge with a finisher buckle.

An unconventional half marathon in Auburn that blends running with extreme ironing, requiring participants to iron a button up shirt at multiple public locations while remaining self supported and documenting each stop on video.

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.

A trail race in Auburn, California on July 26, 2026 offering 10.5 mile and 5.9 mile courses on single track, canal, dirt and some paved surfaces. Post race food and beer are provided to finishers aged 21 or older.

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 multi-day ultrarunning event in Auburn, California (Sept 18-21, 2026) offering timed solo races and team relays on a looped course, staffed aid stations, milestone buckles, on-site amenities, and family cheer zones.

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 point-to-point 50K from South Yuba Campground to Bear Valley in Nevada City, CA held during October 2026. Runners complete the course in one continuous effort and self-report results to receive a finisher award and ranking.

Trail runs near Bear Valley and Lake Spaulding with a 50K and a 24 mile option. The 50K includes a summit loop with about 5,700 ft of gain, rocky sections on Signal Peak OHV Road, cupless aid stations, and finisher medals.

A fall trail event in Auburn featuring three distances along the American River Canyon, aid stations on the longer courses, live music, and complimentary cider pours at Ponderosa Cider Co on October 10, 2026.