Trail Running Calendar United States 2025-2026

Soul Crusher is a challenging trail running event held in Crystal Lake, Illinois, offering 5-mile and 10-mile distances. The course, designed by Jeff Lenard, is known as the toughest 5-mile loop in the Midwest, with runners able to complete one or two loops depending on their endurance. The race sta..

The Wilderness Run 10k is a scenic cross-country race held at Wilderness Run Vineyard near the historic Chancellorsville and Wilderness battlefields. The event features both 5k and 10k courses with hills and trail terrain, offering a challenging and picturesque experience. Participants receive a fin..

The Rootrock Trail Run, taking place on October 18, 2025, at Briar Chapel in Chapel Hill, NC, features a challenging and scenic course for runners of all levels. Participants can choose from three distances: 5K, 10K, and Half Marathon, all set within a beautiful green community with extensive forest..

The Unbridled 50 Mile is a challenging endurance race held in Hillsdale, Kansas, featuring distances of 50 miles, 50K, and 10 miles. The course consists of a 10-mile loop primarily on technical single-track horse trails (90%), with some pavement and gravel sections, including several hills to test r..

The Delaware Trail Fest, held at Lums Pond State Park in Bear, Delaware, is a trail running event celebrating the state's scenic outdoor trails. It offers multiple race options including 12 KM and 24 KM trail runs, as well as a 12-hour Lone Wolf solo challenge and a 12-hour 4-person relay. The cours..

The Black River Trail Classic, held in Millston, Wisconsin, takes place in the scenic Black River State Forest. This event offers multiple race distances: 85K, 50K, 25K, and 10K, catering to a range of trail runners. Participants enjoy well-marked courses featuring beautiful ridge views and vibrant..

The Lake Sonoma 100K and 55K, also known as the California Fall Classic, is a challenging ultramarathon held at Lake Sonoma, California, set amidst the scenic wine country during harvest season. The event features two distances—100 kilometers and 55 kilometers—on demanding courses that traverse mile..

The Big Tex Backyard Ultra is a unique running event held at Stephen F. Austin State Park in San Felipe, Texas. This "last runner standing" format challenges participants to complete a 4.17-mile loop every hour until only one runner remains.The event includes a fully stocked aid station and offers p..

The Ȟaȟá Wakpádaŋ Loopet Loppet is a unique running and walking event held in Minneapolis, Minnesota, along Bassett Creek, known by its Dakota name Ȟaȟá Wakpádaŋ. Participants can choose to run or walk solo or in teams of four, completing as many 5-mile loops as possible within 6 or 12 hours. The ev..

The Cotton Pickin 50K is a certified ultramarathon held in Mercer, Tennessee, starting and finishing at the historic Mercer Cotton Gin. The course features a mix of rolling hills on blacktop roads during the first half, transitioning to a flat terrain of gravel and blacktop roads in the second half...

"Rule the Roost" is an annual trail running event held in Chillicothe, Ohio, as part of the RunFluent Ohio Trail Series. The event features multiple race options, including a 7K race, a 12-hour solo race, and a 12-hour two-person relay. The course is a scenic figure-eight trail, offering a mix of wi..

The Another Round 25K is an inaugural running event scheduled for October 18, 2025, at Jockey's Ridge State Park in Nags Head, North Carolina. Participants will complete five 5K loops, with the challenge of finishing one loop every hour between 7:30 a.m. and 12:30 p.m.The race caters to endurance an..

The Uwharrie Gold Rush is a challenging 50K trail race held in the Uwharrie National Forest near Mt. Gilead, North Carolina. The course features a 20.5-mile figure-8 loop of technical trails with roots and rocks under a lush forest canopy.Runners first complete the southern 11.5-mile portion before..

The Diablo Summit Stomp is a trail running event held in Walnut Creek, California, featuring distances of 30K, half marathon, 10K, and 5K. All courses run on dirt trails through Castle Rock Park and Mount Diablo State Park, with the 30K reaching the summit of Mount Diablo. The event welcomes both fi..

The MuleSkinner Endurance Races take place in Upper Black Eddy, Pennsylvania, featuring distances of 50 miles, 50K, marathon, and half marathon. The course primarily follows the scenic, non-technical towpaths along the Pennsylvania side of the river, offering beautiful views and an easy trail experi..

The Sewanee Slammer is a 20-mile trail race held in Sewanee, Tennessee, featuring a scenic loop along the Perimeter Trail at the University of the South atop the Cumberland Plateau. Runners experience beautiful overlooks, geologic formations, lakes, ponds, and upland deciduous forests. The course st..

The Blue Sky Trail Marathon and Half Marathon are scheduled for October 18-19, 2025, in Fort Collins, Colorado. The event features a scenic course through trails between Horsetooth Mountain Park and the Devil’s Backbone Open Space, offering a mix of dirt singletrack, rocky terrain, and gravel paths...

The Oktoberfest Trail Run in Farmersville, TX, is a scenic race event held along the historic Chaparral Trail, a reclaimed multi-use trail spanning over 35 miles. Participants can choose from various distances, including 5K, 10K, half marathon, full marathon, and 50K. The course features a flat, fas..

The California Gold Rush Trail Run - Fall is a scenic trail running event held entirely within the historic Marshall Gold Discovery State Historic Park in Coloma, California. Set in the picturesque foothills along the south fork of the American River, the race commemorates the site of the 1848 gold..

The Quest for the Crest is a challenging trail running event held in Burnsville, North Carolina, on October 18-19, 2025. It features three race distances: 50K, 25K, and an all-new 11K, all of which are point-to-point courses with significant elevation gains. The races include steep climbs, technical..