Trail Running calendar near Chico 2025-2026

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

The Gold Rush Growler Trail Runs take place at Granite Beach, Folsom Lake State Recreation Area in California, featuring scenic courses along the shoreline and single-track trails. The event offers two distances: a 10-mile trail run and a 5K, both with new courses for 2025. The 10-mile course includ..

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™—offers a scenic trail running experience on the famous Western States Trail. The event features three race distances: a half marathon, 12K, and 5K, all starting at Overlook Park and winding through Aubu..

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 features a professionally measured 1.05-mile loop, mostly on dirt trails with some paved sections, offering smooth terrain and about 62 feet of elevation gain pe..

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 runners scenic and rugged trail experiences. Participants receive a unique tech..

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 Champion Mine Trail Race, held in Nevada City, California, is a scenic trail running event featuring a half marathon (13.1 miles) and a 5K Fun & Fitness Run/Walk. The course offers a dynamic mix of pavement, gravel, and single-track trails, winding through towering pines and crossing a historic..

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 trail 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 sing..

The Rubicon is a challenging and remote foot race held in the backcountry of the northwestern Sierra Nevada near Oxbow Reservoir, California. It offers three route options of increasing difficulty: The Requisite (15+ miles with about 6,700 feet of elevation gain), The Resonant (30+ miles, 12,700 fee..

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. The challenging 100-mile course features approximately 13,874 feet of elevation gain and loss, traversing diverse terra..

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 at Folsom Lake. The main event, Last Person Standing, requires runners to complete a loop every hour until..

The Darrington Single Track Trail Challenge is a trail running event held in Pilot Hill, California, near Folsom Lake. It offers multiple race distances including a 36-mile, 18-mile, 10K, and 5K, catering to various skill levels. The course features stony dirt paths that traverse relentless hills, p..

Doomsday is a challenging running event held in Cool, California, featuring a 50K ultramarathon and a Half Marathon. The race takes place on a scenic course with significant elevation changes—5,100 feet gain/loss for the 50K and 1,250 feet for the Half Marathon. Both distances start together at the..

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..