Trail Running calendar near El Dorado Hills 2025-2026

The Escape from Folsom is a trail running event held at Granite Beach, Folsom Lake State Recreation Area. It offers two race distances: a 10-mile run and a 5K (3.1 miles), both featuring scenic trails adorned with wildflowers. The course includes multiple aid stations providing water, electrolyte be..

FOURmidable is a challenging trail running event held in Auburn, California, set in the scenic Sierra Nevada foothills. The race offers multiple distances including a 50K, 35.5K, half marathon, and 13K, catering to a range of endurance levels. Participants experience rugged terrain and picturesque n..

The Lost Trail Half Marathon and 5K take place at Granite Beach, Folsom Lake State Recreation Area, offering runners scenic lake views and vibrant wildflowers along well-marked courses. The half marathon covers 13.1 miles, while the 5K is 3.1 miles. The event features five aid stations strategically..

The Salmon Falls 50K Endurance Run is a challenging trail race set in the scenic foothills of Sacramento, California. This ultra-distance event starts at the Magnolia Ranch Trail Head near Coloma and features a stunning course that traverses the Cronan Ranch area, ultimately finishing at Folsom Lake..

Way Too Cool 50K, the iconic 36th annual ultramarathon held in Cool, California, offers a 50K trail race and an expanding 10-mile endurance option. Runners navigate rolling Northern California hills, creek crossings, and breathtaking scenery, making it a beloved tradition in the ultrarunning communi..

The Ruck a Chuck 50K is a trail running event held in Foresthill, California, set in the scenic Sierra Nevada foothills. This 50-kilometer race features an out-and-back course starting at Drivers Flat and turning around at Dardanelles Creek. A key highlight is its route along sections of the histori..

Rattlesnake Dick is a trail ultramarathon presented by North Fork Clothing, held in Cool, California at the Cool Staging Area (7200 Saint Florian Court). The event offers three distances: 50K, 25K, and 10K, all with generous 10-hour cut-offs and back-of-the-pack friendly courses. Runners ascend and..

Bad Ass Backyard Ultra (B.A.B.U.) takes place at Dry Creek Parkway in Rio Linda, Sacramento, California. The event uses the traditional backyard ultra format: a 4.16-mile loop with a new loop starting each hour; anyone not in the start corral at the hour is eliminated, and the winner completes the m..

Knickerbocker Canyon Trail Run, staged by Inside Trail Racing, unfolds in the Auburn/Cool area of California along the historic Western States Trail. Runners choose from four distances: 5K, 10K, Half Marathon, and 35K. The routes go out to No Hands Bridge, tackle the K2 training hill, and return via..

Diablo Trails Challenge is a trail-running event held at 1700 Castle Rock Road, Walnut Creek, CA, in support of Save Mount Diablo. The race offers multiple distances to suit all levels: 50K, half marathon, 10K, and 5K, plus a Remote Runner option. The course traverses Mount Diablo’s open-space trail..

American River Endurance Runs is a three-race ultra series from Folsom to Auburn, California, along the scenic American River Parkway. The flagship AR50 has become the second-largest 50-mile race in the United States, attracting veterans and newcomers, with companion 25- and 10-mile events finishing..

The Outlands Endurance Race, held at Peninsula Campground in Pilot Hill, California, offers challenging trail running distances of 25K, 50K, and 50 miles. Set along the rugged, scenic edges of Folsom Lake, the courses feature a mix of runnable single track and double-wide trails with significant ele..

Badger Cove Half Marathon/10K/5K 2026 is held at Del Valle Regional Park in Delvalle, Livermore, California. The emerald hills of Lake Del Valle form the backdrop for three races: a half marathon, 10K, and a 5K, with a virtually hill-free 5K option when conditions permit. The event, hosted by Brazen..

The Canyons Endurance Runs will take place in Auburn from Friday 24 April 2026 to Saturday 25 April 2026. You can run between 25 and 161 kilometers.

Rim Rock 50 Mile Trail Challenge is the inaugural ultramarathon in Napa Valley, staged at Skyline Wilderness Park and weaving through the Napa Open Space Preserve and the new Suscol Headwaters Trail System. The event offers a 50-mile solo option or a two-person relay, with two roughly 26-mile loops..

Napa Wilderness Trail Runs, held at Skyline Wilderness Park (2201 Imola Ave, Napa, CA), offers a spectrum of trail races from a 10K up to a 50K. The event emphasizes accessibility for all levels, with a 50K and 30K designed with guidance from ultra runner Angela Abbey. The courses feature Rim Rock T..

Tahoe 200 is a 200.2-mile ultramarathon around Lake Tahoe, starting at Heavenly Stagecoach Lodge in California. The route climbs 36,857+ feet and stays on National Forest lands along the Tahoe Rim Trail, with a fully marked course and detours to aspen meadows and ridges overlooking the lake. The atm..

Tahoe 100k is a rugged ultramarathon set in the Sierra Nevada around Stateline, Nevada. The 62.9-mile course features about 11,766 feet of climbing and roughly 23,532 feet of total elevation change, with altitudes reaching nearly 9,800 feet. Runners traverse mostly singletrack trails through high-el..

Broken Arrow Skyrace is a California skyrunning event held at Squaw Valley, now Palisades Tahoe, near Lake Tahoe. The race series offers multiple distances, including 11K, 18K, 23K and a 46K ultra, plus ascent formats and specialty challenges such as Iron Face, Iron Crown, and Triple Crown. Marketed..

The Western States Endurance Run is the world’s oldest 100-mile trail race, starting in Olympic Valley, California, and finishing 100.2 miles later in Auburn, California. Established in 1974, the course traverses traditional lands of Indigenous Peoples and features over 18,000 feet of climbing and n..