Trail Running Calendar United States 2025-2026

The Blue 2 Blue Challenge is a demanding 50K trail race set in New Haven, Connecticut, known for its challenging terrain and technical trails. This event, which runs along the Regicides and Quinnipiac Trails, features over 6,350 feet of elevation gain, making it one of the toughest races in the stat..

The Angwin to Angwish Trail Run, set in the scenic Napa Valley, features a variety of challenging courses for runners of all ages. Scheduled for May 4, 2025, participants can choose from three distances: a 1 Mile Kids Run, a 10K, and a 26K. This cupless event encourages sustainability by requiring r..

The Other's Day 5K + Kids Dash is a celebratory running event taking place at the picturesque Daniel Stowe Botanical Gardens in Belmont, NC, on May 4, 2025. This event honors mothers and all the remarkable women in our lives, encouraging participation from all genders and paces. Participants can cho..

The Medved Madness Trail Races is an annual spring event held at Mendon Ponds Park, featuring two main races: a Long Course of approximately 13 miles and a Short Course of about 5 miles. Participants can also enjoy a free Kids K Trail Race. The event is known for its festive atmosphere, including a..

The Mt Si Relay & Trail Runs is a popular running event taking place on May 4, 2025, in Snoqualmie, WA. This event features various race distances, including a 50-mile ultra, 50K, marathon, and half marathon, catering to both novice and experienced runners. The course primarily follows the scenic Sn..

The Spencerville Adventist Academy 5K, 1 Mile Race, and Kids Fun Run is an annual event that promotes fitness and community engagement. Scheduled for May 4, 2025, this event features a 5K cross-country race, a 1-mile run, and a fun run for children aged 9 and under. Participants receive a compliment..

The Breakneck Point Trail Runs, organized by Red Newt Racing, is a challenging trail running event set to take place on May 4, 2025, in Beacon, NY. Participants can choose between a half marathon (13.1 miles) and a full marathon (26.4 miles), both featuring significant elevation gains and technical..

The Cocodona 250 is an extraordinary ultramarathon event taking place from May 5 to May 10, 2025, in Arizona. Spanning approximately 250 miles, this point-to-point race connects iconic trails and historic towns, including Black Canyon City, Prescott, and Flagstaff. Participants will experience diver..

The Bloodroot Ultra will take place in Pittsfield from Wednesday 7 May 2025 to Saturday 10 May 2025. You can run between 10 and 200 miles.

The Many Miles 4 Malakai 4x4x48 Challenge is a unique running event designed to raise awareness and funds for children affected by gun violence. Participants, either individually or in teams, run 4 miles every 4 hours for a total of 48 hours, culminating in 48 miles. This flexible challenge encourag..

The Turnagain Arm Trail Run is an annual trail running event held on one of Southcentral Alaska's most scenic trails. Participants can choose between an 8-mile race starting at Potter Trail Head and a 4-mile race beginning at McHugh, both culminating at the Rainbow Trail Head. The event not only pro..

The Hellbender 100 is a challenging 100-mile ultramarathon set in the scenic Black Mountains of Western North Carolina. Participants will navigate a course featuring significant elevation changes, including a climb to Mt. Mitchell, the highest peak east of the Mississippi.The event, organized by the..

Tiger Claw is an exhilarating trail running event taking place in Issaquah, WA, featuring challenging courses that test the limits of even the most seasoned runners. Participants can choose from three different climbs and a common descent, with the option to complete the 50k or the more demanding 50..

The West Virginia Trail Fest is an annual trail running event held in Pocahontas County, known for its mountainous terrain. Scheduled for May 9-10, 2025, the festival features various races including a 100K, 60K, 30K, 5K, and a kids' fun run. Participants can enjoy additional activities such as a mo..

The Tillamook Burn is a renowned trail running event held in the scenic Tillamook State Forest, Oregon, featuring a variety of challenging races. Participants can choose from a 20-mile, 50-mile, or 50K race, or take on the ultimate challenge of a 100-mile stage race over three days. The event showca..

The Prairie Goat Ultra is an exciting running and biking event held at the Acton Recreation Area in Broadview, Montana. Participants can choose from various race formats, including 3, 6, 12, and 24-hour options for both biking and ultra running, with solo and team categories available. The biking co..

The Don's Backyard BBQ 20K Trail Run Challenge, hosted by Dirty Spokes Productions, takes place at Fort Yargo State Park in Winder, Georgia. This annual event features a 20K solo run and a 10K solo run, both designed to test participants' speed and stamina through a series of rolling hills on groome..

The Family First Trail Run 5k is a community-focused running event taking place in Greenville, NC, on May 10, 2025. This event features a timed 5k race and a Family Fun Walk, making it suitable for participants of all ages. Proceeds from the event will benefit the Carolina Pregnancy Center, a non-pr..

The Germantown Trail Race, scheduled for May 10-11, 2025, offers a variety of running events at Germantown MetroPark, including a half marathon, 10K, 5K, and a 20K relay. Participants can also join the "6 Hours of Power" event. The race showcases the park's stunning landscapes, featuring old-growth..

The Watuppa Trail Races is an annual running event held in Fall River, Massachusetts, celebrating its 11th year in 2025. Participants can choose from three race distances: 10K, 30K, and 50K, catering to various skill levels and preferences. The event takes place in the scenic Watuppa Reservation, pr..