Trail Running calendar near Folsom 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..

2026 Napa Valley Trail Marathon, Half Marathon & 10K takes place at Bothe-Napa Valley State Park in Saint Helena, California. The event offers three trail distances: marathon, half marathon, and 10K. Runners tackle lush single-track with hills, streams, and rocky sections; the course is marked with..

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..

Located in Calistoga, California, the Napa Valley Endurance Run comprises four trail distances: 50K, 35K, half marathon, and 10K. The loop starts and finishes on the Calistoga Fairgrounds' Great Lawn and climbs into Robert Louis Stevenson State Park, culminating at Mount St. Helena.The 50K is renown..

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..

Wildcat 2026, held at 3800 Clark Road in El Sobrante, California, offers a Half Marathon, 10K, and 5K. The page highlights spectacular 360-degree views of the Bay Area from the course. Specific route details aren’t described, but the event is run by Brazen Racing and takes place within East Bay Regi..

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..