Trail Running Calendar United States 2025-2026

The Dahlgren Trail Half Marathon is a scenic running event taking place on the Dahlgren Railroad Heritage Trail in King George, Virginia. This half marathon features a flat, out-and-back course that showcases the natural beauty of the area. Participants can enjoy cash prizes, custom finisher medals,..

The Mid-Maryland Trail Festival 50k is a 31-mile ultramarathon held at Rockburn Branch Park in Elkridge, Maryland. The course consists of six loops, each approximately 5.179 miles, winding through wooded trails. Participants can run the full 50k solo or form relay teams of 2 to 6 members, exchanging..

The Bootleg Boogie is an ultra running event held in Bootleg Canyon near Boulder City, Nevada, featuring distances of 100 miles, 50 miles, and a half marathon. The race takes place on a challenging 12.5-mile loop with over 90% singletrack trails, including 2,000 feet of elevation gain per lap. Parti..

The Frosty Fat Sass is an annual trail running and hiking event held in West Orange, New Jersey, at the South Mountain Reservation's Turtleback Rock Picnic Area. Scheduled for January 31, 2026, this 9th edition offers participants options to run or hike a 5K loop or take part in 3-hour or 6-hour tim..

The Sean O'Brien event in Calabasas, California, offers multiple trail running distances including 100K, 50 miles, 50K, marathon, and 30K. The 100K race serves as a qualifier for the 2026 Western States 100. The course features scenic trail views with notable vantage points around miles 7 and 15, pr..

Forgotten Florida is a unique trail running event held in Christmas, Florida, featuring distances of 100, 50, 15, and 8 miles. The race explores rarely traveled single-track trails through scenic areas like Tosohatchee, Charles Bronson State Forest, Seminole Ranch, and Little Big Econ State Forest...

The AZT Oracle Rumble is an annual trail running event held near Oracle, Arizona, just north of Tucson by the Santa Catalina Mountains. The race features mostly single-track trails through Oracle State Park and remote sections of the Arizona National Scenic Trail. The course is continuously rolling,..

Groundhog's Lap Race is a challenging endurance running event held at Haw River State Park Iron Ore Belt Access in Greensboro, North Carolina. Participants run loops on the 3.2-mile Great Blue Heron single-track trail through the woods. The race offers multiple time-based options: 3-hour, 6-hour, an..

The Greenleaf Trail Run (GTR) is an annual trail running event held in Braggs, Oklahoma, with the 10th edition scheduled for January 31, 2026. The race takes place at the Gruber ORV Park, featuring a moderately technical 5+ mile loop trail. Participants can choose from three distances: 5 miles, 10 m..

The Coo-Wah-Chobee event, held in Venice, Florida, offers runners a choice of 50k, 25k, 5k, and a youth 5k distances. Hosted at the scenic Carlton Preserve, the course features a mix of single-track and dual-track trails, providing a varied and engaging running experience. This single-loop race is o..

The Devil's Shadow Winter Trail Races take place at Mendon Ponds Park in Honeoye Falls, NY, featuring 5-mile, 25k, and 50k distances. The race course is a roughly 5.1-mile loop around Devil's Bathtub, designed to avoid major hills and road crossings, with the start and finish at Hopkins Point Lodge...

Arches Ultra is a trail running event held in Moab, Utah, featuring distances of 50 miles, 50K, half marathon, and 9K. The race takes place along a lower-elevation course bordering Arches National Park, showcasing stunning views of Moab cliffs, the snow-capped La Sal Mountains, and dinosaur tracks i..

The Pleasant Ridge Backyard Ultra is an endurance running event held at Pleasant Ridge Camp and Retreat Center in Marietta, South Carolina. This unique race challenges participants to run 4.167-mile laps every hour on the hour, continuing until only one runner remains able to complete a full lap. Th..

The Red Top Rumble is a scenic 11.5-mile trail race held at Red Top Mountain State Park near Cartersville, Georgia. Suitable for both first-time trail runners and experienced athletes, the course features winding, moderate to easy wooded trails, several bridge crossings, and stunning views of Lake A..

The Daydreamer is a trail running event held in Patagonia, Arizona, featuring 10k, 30k, and 50k race distances. Set along pristine, lesser-known sections of the Arizona Trail, runners experience the unique Madrean Sky Islands environment with views extending to Mexico. The event combines challenging..

The Mt. Umunhum Trail Conquest - Winter is a trail running event held at Almaden Quicksilver County Park in San Jose, California. The race offers multiple distances including a 50K, marathon, 30K, half marathon, 7-mile, 5K, mile, and a kids run.The longer courses traverse the scenic Sierra Azul Open..

The Cereal Killer 15k Trail Run takes place at Red Mill County Park in La Porte, Indiana. This trail race features a 15-kilometer course marked with flags and signs, consisting of four loops. Participants are advised to follow course markings carefully rather than other runners.The event offers a fu..

The Rocky Raccoon 100, organized by USWE Endurance and Tejas Trails, is a premier trail running event held annually in early February at Huntsville State Park, Texas. Offering 100-mile and 100km distances, the race features five 20-mile loops around a scenic lake, crossing wooden bridges and winding..

Winterläufe - The Winter Race is an annual 8K running and walking event held in Frankenmuth, Michigan, hosted by the Frankenmuth Jaycees. This scenic out-and-back road race showcases the beautiful countryside and includes a notable crossing of the historic 1904 Gugel Bridge. Participants can choose..

The Sparrow in Griffin, GA, is an ultrarunning event featuring 3-hour and 6-hour races on a scenic, approximately 2-mile loop trail around a lake. The course consists of smooth single-track trails with mostly easy, rolling terrain, providing a beautiful and accessible running experience. A central a..