Trail Running Calendar United States 2025-2026

The Firelane Trail Trial is an exciting new time trial event set in Forest Park, Portland, designed for hill climbers and speed enthusiasts. Participants will tackle a challenging 4.45-mile roundtrip course with a total elevation gain and loss of 1,266 feet. The unique format features wave starts, a..

The Sehgahunda Trail Marathon, Marathon Relay, and Vale of Three Falls is a running event taking place at Letchworth State Park in Portageville, NY, from May 17 to May 18, 2025. Participants can choose from various events, including a 26.3-mile trail marathon, 2-person and 4-person relay teams, and..

The MCW NJ Appalachian Trail Runventure is a unique running event scheduled for May 17, 2025, in Scotch Plains, NJ. Participants can choose between a marathon or a 40-mile run, both designed to provide a fully supported experience along the New Jersey Appalachian Trail. This event is also a fundrais..

The Cedarock Trail Run is an exciting spring event held at Cedarock Park in Burlington, NC, featuring a variety of race options including a 5K, 10K, Half Marathon, and a Half Marathon Relay. Participants can enjoy four unique loop courses that combine paved trails and forested paths, making it suita..

The Black Fly Trail Run is an annual outdoor event held in Westmore, Vermont, featuring multiple race distances including a half marathon, 10-miler, and 5K. Participants can enjoy challenging courses with varied terrain, private trails, and scenic views of farms and mountains. The event promotes an..

The Corral Canyon Trail Scramble is a trail running event held in the Cleveland National Forest near Campo, California. Taking place on May 17, 2025, it offers multiple race distances, including 5 miles, 9 miles, 14 miles, and a 50K ultramarathon. The courses feature rocky terrain, sandy sections, a..

The Free Spirit 50k is a scenic ultramarathon held in Leyden, Massachusetts, featuring a challenging dirt road course with 4,200 feet of elevation change. Runners experience beautiful New England landscapes, including forests, fields, and a historic 1870s covered bridge. The event starts and finishe..

The Vermejo Charcoal Burner is an exciting annual event scheduled for May 17, 2025, at Vermejo Park Ranch in Raton, New Mexico. This unique race features a variety of challenges, including a 99-mile long gravel ride, a 66-mile medium ride, a 41-mile short ride (with eBikes permitted), and a half mar..

The Sunderbruch B&B Trail Races, held in Davenport, Iowa, offer 5K and 10K trail running events on scenic single-track trails at Sunderbruch Park. Organized by Quad Cities Trail & Ultra Runners and Sun Trail Running, the race emphasizes fun, community, and trail enjoyment over exact distances. The 5..

The Rhino Trail Run 10K is an exciting off-road running event taking place in Cincinnati, Ohio, on May 17, 2025. Participants can enjoy a scenic course through French Park, featuring beautiful meadows, wooded trails, and a creek known for fossils. The race offers a total elevation gain of 331 feet,..

The Desperado Gravel Run & Ruck is an exciting outdoor event scheduled for May 17, 2025, at the scenic Desperado Resort in Boerne, TX. Participants can choose from various distances, including 20k, 10k, and 5k gravel runs, as well as 20k and 10k ruck challenges. The course features a mix of gravel r..

The Proctor Valley Monster Endurance Run is a challenging 60-kilometer race set in the rugged terrain of Southern California. Participants will face a grueling course featuring 11,000 feet of elevation gain and 10,000 feet of descent, designed to test their endurance and mental fortitude. The event..

The Tie Dye 50k is an annual ultramarathon event taking place on May 17, 2025, in Yellow Springs, Ohio, at the scenic John Bryan State Park. The race features a three-loop course, each approximately 10.3 miles long, showcasing the park's beautiful limestone gorge and natural landscapes. Participants..

The Dirty Turtle 25/50K is a challenging trail running event scheduled for May 17, 2025, at Green Mountain Horse Camp in Bremerton, WA. The course features 75% singletrack trails and 25% dirt/gravel roads, with 50K runners facing 7,000-8,000 feet of elevation gain on rugged terrain. Both distances o..

The Patriot Power 5K is a charitable running event held on May 17, 2025, in Reading, Pennsylvania, with a virtual participation option. Organized to honor and support military veterans, the race benefits Team RWB, an organization dedicated to enriching veterans' lives through social and physical act..

Trailquake is a trail running event held at Sanborn Park in Saratoga, California, featuring 5K, 10K, and half marathon distances. Participants run through scenic redwood and pine forests along the San Andreas Trail, experiencing breathtaking single-track trails and challenging ascents to peaks with..

Samson's Revenge is a trail running event held at the YMCA of the Rockies in Estes Park, Colorado, honoring Samson, the famous elk of the Rockies. The race offers three distances: 10K, 27K, and 55K, featuring fast single-track trails with significant elevation gain, including a challenging ascent of..

Run for Amma is an annual charity running event held at Skyline Ridge Open Space Preserve in Los Gatos, California. The race offers three distance options: 50K, 30K, and 10K, featuring challenging elevation gains of 5,266 feet, 3,629 feet, and 980 feet respectively. The event fosters a supportive an..

Death by 5k Waterloo is a challenging 24-hour running event held at George Wyth State Park in Waterloo, Iowa. Participants must complete ten 5k runs or walks, each starting 2.5 hours apart, on a paved out-and-back course along the Cedar Valley Lakes Trail. The event offers a supportive atmosphere wi..

The Minnesota 5K SCADaddle for Research is an annual fundraising event held at Battle Creek Regional Park in Maplewood, MN. This 5K trail run/walk features winding paths through natural landscapes, offering participants a scenic experience. The event fosters a community atmosphere with kid-friendly..