Trail Running Calendar United States 2025-2026

The Krampuslauf is a unique running event held at the Dartmouth Skiway in Lyme, NH, featuring 5K, 10K, and a challenging 9-hour endurance race. Participants will navigate scenic mountain trails, starting at the ski lodge and tackling both Holt's and Winslow sides of the mountain. Runners can earn me..

The Sawmill Trail Runs, part of the Human Potential Running Series, is an annual trail running event held at Staunton State Park in Pine, Colorado. The event features three distance options: a 50k, a 16-mile, and an 8-mile race, catering to various skill levels. Known for its scenic and challenging ..

The Guv'nor Frozen 50K is an ultra-marathon event held in the scenic Driftless Area of Wisconsin, specifically at Governor Dodge State Park. This challenging race offers three distance options: 50K, 25K, and 15K, each featuring a mix of horse trails, dirt paths, and prairie terrain. Participants fac..

The Tower Tag Challenge is a trail running event held at Sleeping Giant State Park in Connecticut, featuring a scenic course that ascends over 600 feet to the Observation Tower. Participants can choose between 4-hour and 8-hour options, completing loops on the Tower Trail, which is approximately 3.3..

Into The Wild Fremont Canyon is part of the OC Trail Runs series, featuring a 28k race set in the scenic Fremont Canyon. This event invites participants to experience the beauty of Southern California's natural landscapes while challenging themselves on diverse terrain. The race emphasizes the thril..

The Death Valley Trail Marathon is an exciting running event that features both a full marathon and a half marathon, set against the stunning backdrop of Death Valley National Park. Participants can expect a challenging course that showcases the unique desert landscape, with opportunities to experie..

The Backland is a unique last-man-standing trail race held near the Texas-Oklahoma border, featuring a challenging course primarily on trails. Participants must complete a 4.5-mile loop within one hour, with the last person remaining crowned the champion. The event offers a $1,000 cash prize, trophi..

The TARC Winter Classic, organized by the Trail Animals Running Club, takes place at the scenic Middlesex Fells Reservation in Stoneham, Massachusetts. This popular trail running event offers participants the choice of 8-mile, 32-mile, and 40-mile distances, showcasing a challenging course filled wi..

Ollie's Ultra is an endurance running event taking place at Santa Fe Park in Chanute, Kansas. Participants can choose from various race durations, including 24, 12, 9, 6, and 3 hours, all on a USATF Certified Course. Runners will complete a 2.022-mile loop, with only full loops counting towards thei..

One Epic Run is a unique 24-hour running event taking place in Spartanburg, South Carolina. Scheduled for December 6-7, 2025, this event invites participants to challenge themselves in a supportive and energetic environment. Runners can register for the event and enjoy the camaraderie of fellow athl..

Caloosa Fest Ultra is an exciting annual running event held at Caloosahatchee Regional Park in Alva, Florida. The event features a 50K ultra marathon and a 25K race, both set on a scenic 11.1-mile loop that includes diverse terrain and beautiful views. Participants can enjoy aid stations stocked wit..

The Crooked Creek Ultra Trail Race is an exciting trail running event held at Camp Crooked Creek in Shepherdsville, Kentucky. Set against the backdrop of Bourbon Country, the race features a challenging 12.7-mile loop with over 2,300 feet of elevation gain per lap, offering participants stunning vie..

Devil Dog Ultras is an exciting trail running event held in Prince William Forest Park, Virginia, featuring three challenging distances: 100 miles, 100K, and 50K. The course consists of primarily single-track trails with some technical sections, and runners can expect well-stocked aid stations throu..

The Brazos Bend 100 is a premier trail running event held annually in December at Brazos Bend State Park, located just south of Houston, Texas. This race features multiple distances, including a 100-mile ultra, 100-kilometer, marathon, and half marathon. The 100-mile race serves as a qualifier for t..

The Fall Backyard Burn Trail Run at Fountainhead Regional Park offers participants a choice between a 5-mile and a 10-mile race, set against the scenic backdrop of the Occoquan Reservoir in Fairfax Station, VA. Known for its beautiful hiking trails and challenging terrain, this event has been a favo..

Storm the Castle is a unique half marathon event taking place in Blue River, Oregon, featuring a scenic lollipop loop course on the Kings Castle and Castle Rock Trails. Participants can enjoy breathtaking views of the Sisters mountains while running 13 miles. The race encourages a costume theme, inv..

The Hunter S. Thompson Fear & Loathing event is a renowned ultra-running race held annually in San Francisco, CA, since 1985. The event features two main distances: a 50K and a 50-mile race, with no entry fee required.Participants navigate a course primarily on city streets, with some trail options ..

The Dirty South Trail Races, scheduled for December 7, 2025, in Knoxville, TN, features a variety of events including a Half Marathon, a 10K, and a Kids Trail Mile. The race starts and finishes at Meade's Quarry, traversing scenic areas like the Forks of the River Wildlife Area and Ijams Nature Cent..

The Pine Mountain Trail Run (PMTR) is a celebrated ultra marathon event held in FDR State Park, Pine Mountain, Georgia, known for its challenging rocky single-track trails. Established in 1980, this year marks its 45th anniversary, making it one of the oldest trail runs in the country. Participants ..

The Topo Trail Marathon Races, scheduled for December 7, 2025, in Bethel, Ohio, offers a variety of running events including a Quarter Marathon (6.55 miles), Half Marathon (13.1 miles), and Full Marathon (26.2 miles). The race takes place on the scenic mountain bike trails of East Fork State Park, f..