Trail Running Calendar United States 2025-2026

Run The Ritter is a trail running event held in Lakeville, Minnesota, featuring a scenic 5-mile loop with options for 3-mile and 10-mile distances, as well as a Canicross division for participants with dogs. The course is designed to accommodate both novice and experienced trail runners, offering a ..

The Forge Trail Run Festival is an exciting trail running event held in Lemont, Illinois, featuring a variety of race distances including a 4 Mile(ish), 10K, 20K (Half Marathon), and 30K. Participants will navigate through scenic single and double-track trails, experiencing the natural terrain of th..

The Wild Florida Trail Run is an exciting running event taking place in White Springs, Florida, featuring three race distances: 50K, 25K, and 10K. This scenic race showcases the beauty of the Florida Trail, particularly along the picturesque Suwannee River, surrounded by majestic oaks and vibrant fa..

The 4 Fore 30 Infinity Backyard Ultra is an endurance running event taking place in Macks Creek, MO, on November 15, 2025. This unique race follows the format of Big's Backyard Ultra, where participants must complete a 4.1667-mile loop within one hour, with the process repeating every hour until onl..

The Dirty Duel Trail Race is a unique running event held at Robinette’s Trails in Grand Rapids, MI, featuring two challenging courses: the Short & Brutal (3.1 miles) and the Long & Difficult (3.4 miles). Participants can choose their preferred route, with the Short & Brutal offering steep climbs and..

The Louisville Trail Race, celebrating its 12th year, features a Half Marathon, 10K, and 5K, set against the stunning backdrop of Louisville, Colorado. Known for its scenic trails and welcoming atmosphere, the race offers a mostly flat course with a challenging hill that rewards runners with breatht..

The Chateau Elan Muscadine Run is an annual vineyard and trail running event held at Chateau Elan in Braselton, Georgia. Participants can choose between two distances: 5.5 miles or 3.0 miles, both offering a scenic off-road experience through the vineyards. The event features a cap on participants t..

The Dead Horse Ultra is an exciting running event held in Moab, Utah, featuring a variety of challenging distances including a 50 Miler, 50K, 30K, and 15K. The course showcases the stunning Magnificent Seven Trails off Gemini Bridges, offering participants technical slickrock terrain and sandy washe..

The Fat Ox is an endurance running event taking place from November 21 to 23, 2025, at Estrella Mountain Regional Park in Buckeye, AZ. Participants can choose from various race formats, including 48-hour, 24-hour, 12-hour, and 6-hour runs, as well as distances of 100 miles, 100K, 50 miles, and 50K. ..

The Stuffed Turkey Endurance Races, taking place on November 22, 2025, at Jester Park in Granger, Iowa, offers a challenging experience for runners with distances of 10 miles, 50K, 50 miles, and 100 miles. This event is recognized as a UTMB index race and features a 100% trail course with rolling hi..

The Colt 45 Trail Run is an exciting running event taking place at Colt Creek State Park in Lakeland, Florida. Participants can choose from various distances, including a 60-mile, 45-mile, 45K, and a 14-mile race, all featuring scenic trails. The course consists of multiple loops, with aid stations ..

The Duncan Ridge Trail event features a challenging 50K and 30K race set in the scenic North Georgia Mountains, starting and finishing at Vogel State Park. Known for its tough terrain, the 50K route includes over 10,000 feet of elevation gain, utilizing the Coosa Backcountry Trail and the Duncan Rid..

The Circle Endurance Event is a challenging running competition held at Ringgold High School in Ringgold, GA, featuring 3, 6, 12, and 24-hour races. Participants aim to cover the maximum distance possible within their chosen time frame by continuously circling a track. This event tests both physical..

The Dinosaur Valley Endurance Run, held at Dinosaur Valley State Park in Glen Rose, Texas, offers a range of challenging distances including 100 Miler, 100K, 50K, 25K, and 5 Miler. This event, now in its 8th year, features a mix of terrain with gradual hills, soft dirt, rocks, and roots, making it a..

The Dirty Dirty 15K is an exciting trail running event scheduled for November 22, 2025, at the North Chagrin Reservation in Willoughby Hills, Ohio. This race is the final event of the Dirty Trail Series, featuring a challenging two-loop course that showcases the park's beautiful landscapes, includin..

The Midland Mountain Trail Series is an exciting running event taking place in Harbison State Forest, Columbia, SC. Scheduled for November 22, 2025, the series features two main races: the Midland Mountain Marathon and the Broad River Half Marathon. Participants can expect a challenging yet rewardin..

Fire Fest Ultra is an exciting running event taking place in Logandale, NV, featuring over 45,000 acres of stunning trails and rock formations. Participants can choose from various race distances, including 24/48-hour, 100M, 100k, 50M, 50k, marathon, half marathon, 10k, 5k, and a kids' 1-mile run. T..

The 16th Annual Camp Chestnut Ridge Trail Races will take place at the Chestnut Ridge Camp and Retreat Center in Efland, NC. Participants can choose from three events: a 4-ish mile trail run, an 8-ish mile trail run, and a 3-mile virtual race. The course features scenic trails through rolling hills ..

The Tuckahoe 25K is an exciting trail running event scheduled for November 22, 2025, in Queen Anne, MD. This race, organized by the Centreville Crushers and Algonquin Ultras Inc., offers a challenging yet accessible 25K course primarily on single-track and wider horse trails. Participants can expect..

The Hex Hollow Half is a running event taking place in Glen Rock, PA, featuring two race options: a half marathon (13.13 miles) and a shorter 6.66-mile course. The race starts and finishes at Spring Valley Park, offering participants a scenic route through meadows, forests, and challenging terrain, ..