Trail Running calendar near Chico 2026-2027

The Bad Ass Backyard Ultra tests endurance with a relentless hourly loop format in Rio Linda. Complete a 4.16-mile loop every hour to stay in the race. As an official Backyard Ultra, it offers a path to national and world championship quali..

A multi-distance trail race at American River Overlook Park, featuring river canyon single-track, steep climbs including K2 and Dam Hill, chip timing, cupless aid stations, and courses from 5K to 35K on March 28, 2026.

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.

Explore the rolling hills of Cronan Ranch at the Magnolia Magic River Trail Run. This event offers a range of distances on dirt and rock trails, from a 5K to a 50K ultra. All participants receive a medal and access to aid stations along the..

Explore remote trails along Folsom Lake with the Outlands Endurance Races. Choose from 25K, 50K, or 50-mile distances on scenic singletrack. The event starts and finishes at Peninsula Campground in Pilot Hill.

Experience a scenic 14.5 mile trail run along the Bullards Bar Reservoir in Camptonville. This fundraiser for the Wildland Firefighter Foundation features single track trails and support from the local fire community.

Experience the historic Western States Trail at this premier ultra trail event in Auburn, California. Choose from four distances ranging from 25 km to 100 miles to earn qualifications for the UTMB World Series Finals.

The 30th annual Paiute Meadows Trail Run explores the scenic single-track trails of Susanville Ranch Park. Runners can choose from distances including a 50K, 30K, half marathon, and a free kids' race. It's a cupless event with well-stocked..

A spring trail race in Cool, California with two single-track distances of 5.8 and 10.3 miles, varied terrain and a creek crossing. The event is limited to 600 participants and includes packet pickup, a tech shirt, and a finisher medal.

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 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.

Experience a scenic 10km loop through the Auburn State Recreation Area featuring rolling hills and oak forests. This trail run offers a mix of creek crossings and canyon climbs overlooking the American River.

Experience a 10km trail run on the scenic Olmsted Loop Trail within the Auburn State Recreation Area. This event offers a classic trail race through the beautiful landscape of Cool California.

Experience the scenic trails of Northern California with distances ranging from a 5K to 100K. Run through historic trails and varied terrain using a well-marked loop system with full aid station support.

Run 100 miles on a looped course through Northern California trails. The event has a 37-hour cutoff and multiple aid stations. Finishers earn a handcrafted silver buckle.

Experience the beauty of the Susan River Canyon with trail races featuring flowy singletrack and scenic vista points. Choose between three distances and enjoy a post race celebration at the Hobo Camp Day Use Area.

This summer series offers Tuesday evening fun runs in Redding, CA. Each week features a different local park or route with two distance options. A punch card registration includes a special 20th anniversary T-shirt.

The Lost Sierra Endurance Race offers 25K, 50K, and 100K trail runs through the scenic and rugged northern Sierra Nevada near Downieville, California. The 100K is a demanding out-and-back route, while the 50K is a point-to-point course with..

Trail run in Auburn, CA on July 26, 2026 featuring two courses through single-track trails, canal sections and dirt roads in the American River Canyon. Includes race shirt, finisher medal and post-race beer for those 21 and older.

Join this unique trail run at Folsom Lake SRA where you can compete alone or with your dog. Features 10K and 5K courses with specialized awards for different dog weight classes and finisher medals for all.