Trail Running calendar near Chico 2025-2026

Skybreaker Racing’s Mammoth Bar Trail Runs take place in the Mammoth Bar OHV Area within the Auburn State Recreation Area, near Auburn, California. The event offers three distances: Half Marathon, 10K, and 5K, designed for a high-vertical, rugged trail experience. Participants can expect steep climb..

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 diverse terrain with paved park roads, secret trails, and notable landmarks like Oak Point, Dot..

Sunset & Cider Trail Races take place in Auburn, California, at Ponderosa Cider Co. The event offers 50K, 13.1-mile, and 5-mile trail distances. The 50K includes two out-and-back segments on the American River with runnable single-track and about 3,900 feet of climbing, aided by four stations.The 13..

The Auburn Half Marathon, held in Auburn, California, is a Brazen Racing trail event offering a half marathon, 12K, and 5K. Scheduled for October 4, 2025, the courses start at Overlook Park and run into the Auburn State Recreation Area, with more than half the route on the Western States Trail. Runn..

Yuba Gold Trail Runs takes place near Nevada City, California, in gold country. The event offers 50K, 35K, and Half Marathon distances along a historic route with views of the South Fork Yuba River and the Malakoff Diggins site. It’s an Independent P2P (DIY/self-guided) adventure rather than a tradi..

Mile Madness Endurance Run takes place at Sunset Whitney Recreation Area in Rocklin, California. The race uses a 1.05-mile loop (85% dirt, 15% paved) with about 62 feet of elevation per lap and a central Start/Finish hub. Runners choose from 6-, 12-, 24-, 48-, or 72-hour events, plus a 100-mile chal..

Granite Head 2025, billed as Granite Bay’s Best Trail Run and part of Trails & Ales, is a two-distance trail race presented by Altra in Granite Bay, California. Runners can tackle a gnarly 6.6-mile short course or an epic 11.2-mile long course. Both start and finish at Granite Beach, with the course..

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..

Euchre Bar Massacre is an ultramarathon near Foresthill, California, offering 25- and 50-mile fatass-style routes along the North Fork of the American River. The rugged course ladders about 10,000 feet of climbing for the 25-mile option and roughly 20,000 feet for the 50-mile, with substantial bushw..

Champion Mine Trail Race is held in Nevada City, California, featuring two events: a half marathon (13.1 miles) and a 5K Fun & Fitness Run/Walk. The inaugural race from the Bear Yuba Land Trust and Sierra TrailBlazers uses a dynamic mix of pavement, gravel, and single-track trails, with rewarding cl..

The Jackalope Lope is a trail running event held in 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..

Heart of Cool Trail Run is held in Cool, California (860 Cave Valley Rd, Cool, CA 95614) on Sunday, October 19, 2025. The event offers three trail distances: 5k Trail Run/Walk, 10k Run/Walk, and Trail Half Marathon. The course winds through premier Sierra Foothills trails around Cool, sharing the sa..

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 very difficult, remote on- and off-trail foot race set in the backcountry of the northwestern Sierra Nevada, near Oxbow Reservoir, California. It offers three route options: The Requisite (15+ miles, about 6,700 ft of gain, 3 hill climbs and 2 water crossings); The Resonant (30+ mil..

The Rio Del Lago 100 Mile Endurance Run is a premier ultramarathon held annually in the scenic Sierra Foothills of California, near Folsom Lake, about 40 minutes east of Sacramento. The challenging 100-mile course features approximately 13,874 feet of elevation gain and loss, traversing oak woodland..

NorCal Backyard Ultra returns to Beals Point at Folsom Lake, near Granite Bay, CA, for its third edition. Two formats: Last Person Standing (4.2-mile loop, hourly until one remains) and Mini Last Person Standing (24 hours). The scenic course runs on rolling singletrack with lakefront views.No on-cou..

Darrington Single Track Trail Challenge is a multi-distance trail-run event held in Pilot Hill, California, near Sacramento. Participants can choose from four distances: 36 Miler, 18 Miler, 10K, and 5K. The race traces a single-track route along the shores of Folsom Lake, featuring stony dirt paths..

The Wild Turkey is a Thanksgiving morning trail race held in Granite Bay, California (9704 Auburn Folsom Rd, 95746). The event offers two distances — a 5k and a 10k — plus a free 1k kids run, all on scenic trails around Folsom Lake near Beals Point. The atmosphere is family-friendly and community-mi..

Doomsday is a two-distance endurance event in Cool, California, offering a 50K and a Half Marathon on a beautifully scenic, backcountry-style course. The 50K features about 5,100 feet of elevation change with a 9.5-hour cutoff, while the Half Marathon covers roughly 1,250 feet of gain/loss and a 5-h..

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..