Trail Running calendar near Folsom 2025-2026

We have found 65 Trailruns within 80 miles of Folsom. See below where and when you can find the races.

Run scenic singletrack on Mount Diablo with distances from 5K to 50K, including a longer than standard Brazen Ultra half marathon. Funds support Save Mount Diablo and postrace photos and results are provided.

Run the scenic American River Parkway from Folsom to Auburn with 50, 25 or 10 mile options. Expect aid stations, a tech shirt and finisher medallion, plus a festive post race party with food and a beer garden.

Run the scenic Wild Flowers 10K in Auburn on April 11, a loop of single track trails with rolling hills and two aid stations. All finishers get a race tee and top finishers can win prizes including an all expenses paid trip to Spain.

Challenge scenic, technical trails above Calistoga with 50K, 35K, half marathon and 10K options, several UTMB index races. Big climbs, remote single track and a custom finisher medal and race shirt for every finisher.

UTMB Index

Run lakeside single track around Folsom Lake at the Outlands Endurance Race in Pilot Hill CA on April 18, 2026. Choose 25K 50K or 50M out and back courses with stocked aid stations plus finisher swag and wood awards.

Join Badger Cove at Del Valle Regional Park on April 18 for a scenic half, 10K, 5K or remote run around Lake Del Valle. All finishers get custom medals and shirts, chip timing, and proceeds support East Bay Regional Parks camperships.

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.

UTMB Index
May 2026

Join Angwin to Angwish, a scenic trail run through Pacific Union College woods with 26K, 10K and a 1 Mile Kids Run for ages 7 to 12. Family friendly, cupless event with race day check in and proceeds benefiting PUC Athletics.

Join the Wine Half Marathon in Napa Valley on May 9, 2026, a 13.1 mile route through vineyards from Rutherford to Yountville. Founded by four French American wine professionals, the race blends warm hospitality, surprises, and scenic trails..

Join the Dirty Secret Trail Run in Cool CA on May 9, 2026 for 5.8 or 10.3 miles of single track through meadows, creek crossings and a tough climb. Limited to 600 runners, finishers receive tech shirt, medal and strawberry pancake breakfast..

Hit rugged singletrack at the Napa Wilderness Trail Runs in Skyline Wilderness Park, with 10K, 21K, 30K and 50K options. Expect steep climbs, sweeping valley views, spaced aid stations and a true backcountry trail experience.

Run Napa's Rim Rock 50, a rugged two loop trail challenge with solo and two person relay options. Camp at Skyline Wilderness Park and refill at cupless aid stations while enjoying scenic wildland views.

Join Wildcat 2026 on May 16 in El Sobrante for scenic half, 10K, 5K and remote run options that boast 360 degree views of the Bay Area. Run for fun or support the East Bay Regional Parks Campership Program.

Join the Wild Rose Half Marathon and 5K in Roseville on May 16, 2026, starting at Moksa Barrel House. Enjoy scenic paved trails or a fun 5K run or walk, plus a finishers medal, choice of tech shirt or BOCO hat, and a Moksa drink ticket.

Three supported runs cover the final 70 miles of the Western States course May 23 to 25, 2026 around Foresthill and Auburn, CA. Aid stations and bus transfers provided; bring your own water and meet experienced trail runners.

Tail Wagger brings dog friendly 5K and 1 mile fun to North Tahoe Park on May 30, 2026 and to Incline Village TBA. Expect scenic trails, an expo, separate human only starts, swag for pups and people and a local pet charity fundraiser.

June 2026

The Tahoe 200 is a 200.2 mile ultramarathon around Lake Tahoe on National Forest lands, with ridge runs, alpine lakes, rock gardens and Desolation Wilderness views. With robust aid and a 105 hour cutoff this qualifier for Hardrock 100 and W..

Explore scenic single track and fire roads at the Cool Moon Trail Races in Cool California on June 13 and 14 2026. Choose distances from a 5K to a 100K and enjoy looped courses, aid stations and live runner tracking.

Tackle 100 miles in Cool, California on alternating lap loops through scenic singletrack and fire roads. Well marked with aid stations and crew access at the start, finishers earn a handcrafted Comstock Heritage buckle and medal.

Join the scenic Olympic Valley Half Marathon, 8 Miler, or 5K on June 13, 2026 at Palisades Tahoe. Run fast flat trails along the Truckee River, enjoy aid stations, a finisher medal, and post race beer.