Trail Running calendar near Chico 2025-2026

Bizz Johnson's Southside Scramble is a trail running event held in Susanville, California, showcasing the scenic Susan River Canyon. The race offers three distances: 22K (Dirty Devil's), 14K (Tunnel's Blast), and 7K (Hobo's Special), all starting and finishing at the Hobo Camp Day Use Area. The cour..

Blood, Sweat & Beers is a trail running event held in Auburn, California, nestled in the scenic American River Canyon. The race offers two challenging distances: a Long Course of 10.5 miles with 2,471 feet of elevation gain and loss, and a Short Course of 5.9 miles with 863 feet of elevation change...

The Lost Sierra Endurance Race, held in Downieville, California, offers challenging trail running events through the scenic Sierra Buttes. Scheduled for July 26, 2025, the race features three distances: 25K, 50K, and 100K. The 100K is an out-and-back course starting in downtown Downieville, passing..

The Folsom 100 is an exhilarating 100-mile ultramarathon that takes place around Folsom Lake, California. Scheduled for August 1, 2025, this challenging race features a point-to-point course with a single out-and-back section. Participants have 34 hours to complete the loop, which includes stunning..

The Mammoth Bar Trail Runs, hosted by Skybreaker Racing, is a new trail running event held in the Mammoth Bar OHV Area within Auburn State Recreation Area, Auburn, California. Scheduled for September 7, 2025, the event features three race distances: a half marathon, 10K, and 5K. The courses are know..

The Gold Rush Growler Trail Runs, held at Granite Beach in Folsom Lake State Recreation Area, feature scenic 10-mile and 5K trail races along shoreline and single-track trails. The 10-mile course includes paved park roads, secret trails, and varied terrain with aid stations offering water, electroly..

The Sunset & Cider Trail Races, held in Auburn, California's scenic American River Canyon, offer three trail running distances: 50K, 13 miles, and 5 miles. The courses feature mostly runnable single-track trails with some short neighborhood road sections and varying elevation gains—3,875 ft for the..

The Auburn Half Marathon, held in Auburn, California—known as the Endurance Capital of the World™—is a trail running event featuring a half marathon, 12K, and 5K distances. The race starts at Overlook Park and courses through the scenic Auburn State Recreation Area, including more than half the rout..

Yuba Gold Trail Runs take place near Nevada City, California, in the scenic gold country region. The event offers multiple distances including a 50K, 35K, and half marathon, all featuring beautiful views of the South Fork Yuba River and the historic Malakoff Diggins hydraulic mining site. The start..

The Mile Madness Endurance Run is a multi-day ultrarunning event held at Sunset Whitney Recreation Area in Rocklin, California. The course is a professionally measured 1.05-mile loop featuring 85% dirt trail and 15% paved path, with about 62 feet of elevation gain per lap. Runners can choose from va..

Granite Head 2025 is a trail running event held in Granite Bay, California, featuring two challenging courses: a 6.6-mile short course and an 11.2-mile long course. Both races start and finish at Granite Beach, offering scenic trail running experiences. Participants receive a unique tech shirt and e..

The Bizz Johnson event is a scenic running experience held on the Bizz Johnson Trail in California, featuring a variety of race distances including a Boston Qualifier marathon, 50K, half marathon, 10K, and an Express half marathon. The course is primarily downhill, allowing participants to set perso..

The Euchre Bar Massacre is a challenging fatass-style trail run held near Foresthill, California, starting and finishing at Shirttail Creek Campground. It offers two distances: a 25-mile course with approximately 10,000 feet of climbing and a 50-mile course with about 20,000 feet of elevation gain...

The Jackalope Lope is a trail running event held at Whiskeytown National Recreation Area near Redding, California, known for its challenging terrain and significant elevation gain. Participants can choose from three distances: an 8.5-mile run, a 20.5-mile race, or a new 50-kilometer course. The even..

The Heart of Cool Trail Run, held in Cool, California, offers a family-friendly trail running event featuring 5k, 10k, and half marathon distances. Set amidst the scenic Sierra Foothills, the course shares trails with renowned races like the Western States 100 and Way Too Cool 50k. Proceeds support..

The Fleet Feet Fall Classic Trail race takes place in Upper Bidwell Park, Chico, California, featuring two events: a challenging half marathon and a 4-mile endurance challenge. The half marathon includes a steep 1600 ft climb in the first half, followed by a downhill finish through scenic single-tra..

The Rio Del Lago 100 Mile Endurance Run is a premier ultramarathon held annually in the scenic Sierra Nevada Foothills near Folsom, California, about 40 minutes east of Sacramento. Starting at Beal's Point in the Folsom Lake State Recreation Area, the challenging 100-mile course features diverse ter..

The NorCal Backyard Ultra, held at Beals Point in Granite Bay, CA, is a challenging endurance running event featuring a 4.2-mile loop course along scenic singletrack trails and lakefront views. Participants must complete each loop within an hour, starting a new lap on the hour, continuing until only..

The Darrington Single Track Trail Challenge is a trail running event held near Pilot Hill, California, along the scenic shores of Folsom Lake. The race offers multiple distances including a 36-mile, 18-mile, 10K, and 5K, catering to a range of runners. Participants traverse stony dirt paths that win..

The Doomsday 50K & Half Marathon takes place in Cool, California, offering runners two challenging distances: a 50K with 5,100 feet of elevation gain/loss and a Half Marathon with 1,250 feet gain/loss. Both races start together at the Cool Staging Area. The courses are scenic and hiker-friendly, wit..