Trail Running calendar near Chico 2025-2026

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 three challenging trail running distances: 25K, 50K, and 100K. Set against the scenic Sierra Buttes, the 100K is an out-and-back course featuring rugged single-track trails, significant elevation gain (10,780 ft), and five aid s..

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 trail running event held in Auburn, California, within the Auburn State Recreation Area. Scheduled for September 7, 2025, the event features three race distances: a half marathon, 10K, and 5K. The courses traverse the single-track and dou..

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, 13.1 miles, and 5 miles. The courses feature mostly runnable single-track trails with moderate elevation gains—3,875 ft for the 50K, 2,082 ft for the half marathon, an..

The Auburn Half Marathon, held in Auburn, California—known as the Endurance Capital of the World™—offers trail running on the scenic Western States Trail. The event features a half marathon, 12K, and 5K races, all starting from Auburn Overlook Park and winding through the Auburn State Recreation Are..

The 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 st..

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 is a scenic trail running event held in Susanville, California, featuring distances of 50K, marathon, half marathon, 10K, and an Express Half Marathon with a relay option. The USATF-certified marathon course is a fast, mostly downhill route along the historic Bizz Johnson Trail thro..

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 that participants must complete every hour on the hour. The main event, Last Person Standing, starts Friday evening and continues until only one runner remains, while..

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 variety of runners. The course features stony dirt paths that tra..

The Doomsday 50K & Half Marathon takes place in Cool, California, offering runners a challenging and scenic race experience. The 50K features 5,100 feet of elevation gain and loss, while the Half Marathon includes 1,250 feet. Both races start together at the Cool Staging Area.The event welcomes hike..

The Auburn Resolution Run is a trail running event held at Overlook Park in Auburn, California. Scheduled for January 1, 2026, it offers multiple race distances including 5K, 10K, 10 miles, and a virtual run option for any distance. This event provides a refreshing and adventurous way to start the N..