Trail Running Calendar United States 2025-2026

The Langlauf 10K Cross Country Ski Race is a celebrated event taking place at the Mount Spokane Nordic Ski Center, known as the premier cross-country ski area in the Inland Northwest. Scheduled for January 25, 2026, this race marks its 45th year, attracting participants of all skill levels with wave..

The Mid-Maryland Trail Festival 50k is an exciting running event taking place in Elkridge, MD, featuring a challenging 31-mile course comprised of six loops through scenic wooded trails. Participants can choose to run the entire 50k solo or form relay teams of up to six members to share the distance..

The Coo-Wah-Chobee 50k, 25k, and 5k is an exciting running event taking place at Carlton Preserve in Venice, Florida. This annual race features a scenic single loop course with a mix of single track and dual track trails, making it a unique experience for participants. The event promises signature s..

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,..

Trails by Moonlight: Snow Moon is an exciting night trail running event taking place in Lago Vista, TX, under the enchanting glow of February's full moon. Participants can choose from three unique challenges: the 12-Hour Last Person Standing, the 8-Hour Snow Moon Stampede, and the Twilight Express,..

The Arches Ultra is a thrilling running event set in Moab, Utah, featuring a variety of distances including a 50 Miler, 50K, Half Marathon, and 9K. Scheduled for January 31, 2026, the race showcases stunning views of Moab's cliffs, Arches National Park, and the La Sal Mountains. Participants will na..

The Sean O'Brien 100K is a premier trail running event taking place in Calabasas, California, featuring multiple race distances including 100K, 50 miles, 50K, a marathon (26.2 miles), and 30K. This event is recognized as a qualifier for the prestigious Western States 100. Participants can expect sce..

The Devil's Shadow Winter Trail Races is a winter running event held at Mendon Ponds Park, featuring 50k, 25k, and 5-mile race options. This event is part of the Common Ground Winter Trail Series, aimed at fostering community among trail runners during the winter months. Participants will navigate a..

The Pleasant Ridge Backyard Ultra is an endurance running event taking place at the Pleasant Ridge Camp and Retreat Center in Marietta, South Carolina. This unique race format challenges participants to complete as many 4.167-mile laps as possible within an hour, continuing until only one runner rem..

The Groundhog's Lap Race is an exciting endurance event taking place at Haw River State Park in Greensboro, NC. Participants can choose to run for 3, 6, or 12 hours on a scenic 3.25-mile singletrack trail loop. This unique race format allows runners to challenge themselves while enjoying the beautif..

The Castlewood Cup is an annual trail running event that will take place for its 18th edition on February 7, 2026, at Castlewood State Park. Participants will tackle a challenging 15km course featuring a variety of terrains, including uphills, downhills, and switchbacks, making it a true test of tra..

The Rocky Raccoon 100, organized by USWE Endurance Trail Run, is an annual trail race held in February at Huntsville State Park, Texas. Participants can choose between a 100-mile or 100-kilometer distance, both featuring scenic loops through beautiful pine forests. Known for its supportive atmospher..

The Frozen Assets 5K Run/Walk is a unique event hosted by Clean Lakes Alliance, taking place on a frozen lake in Madison, Wisconsin. Participants can choose to run or walk across the ice of Lake Mendota, enjoying stunning views of downtown Madison and the University of Wisconsin-Madison campus. The..

The Wagging Tails on the Trails 5k Trail Race is an exciting event scheduled for February 7, 2026, at Pepper Park Riverside in Fort Pierce, Florida. This dog-friendly race features a 5k trail run/walk, a "Going Old School" option, and a Kids Puppy Dash for children aged 10 and under. Participants ca..

The Mt. Umunhum Trail Conquest - Winter is an exciting running event taking place at Almaden Quicksilver County Park in San Jose, CA. Participants can choose from various distances, including a 50K, Marathon, 30K, Half Marathon, 7 Miler, 5K, and a Kids Run.The course features scenic trails that lead..

The Algonquin 50K is a trail running event taking place in Pocomoke City, MD, on February 7, 2026. This race offers a flat, fast course ideal for both first-time ultra runners and those seeking a competitive time. The route is primarily on trails, featuring a mix of single track and wider horse trai..

The ICY-8 Spotsylvania Courthouse is an exciting trail running event taking place at Lake Anna State Park in Spotsylvania, VA. Scheduled for February 7, 2026, this event features an 8-hour adventure trail run and a new Half Marathon+ option. Participants can choose from various loop distances, inclu..

Forgotten Florida is an exciting running event scheduled for February 7-8, 2026, in Christmas, Florida. This unique race offers participants the chance to explore scenic trails in areas like Tosohatchee, Charles Bronson State Forest, and Seminole Ranch, showcasing the beauty of old Florida. Runners..

The TARCtic Frozen Yeti is an exciting trail running event organized by the Trail Animals Running Club, taking place at Hale Reservation in Westwood, Massachusetts. Scheduled for February 7-8, 2026, participants can choose between a 30-hour race or a 15-mile distance. The course features three loops..

The Uwharrie Mountain Run is an annual trail running event held in the Uwharrie National Forest of central North Carolina, featuring challenging single-track courses of 8, 20, and 40 miles. Celebrating its 35th year, the event attracts both recreational and elite runners, offering a unique experienc..