Trail Running Calendar United States 2025-2026

The Mammoth Cave 50K/25K is a trail running event held in Mammoth Cave National Park, Park City, Kentucky. Scheduled for October 25, 2025, it features two distances: a 50K and a 25K. The race takes place on the scenic Bike & Hike Trail, a crushed gravel out-and-back route named after a historic rail..

Among the Trees is an ultramarathon event held in Dousman, Wisconsin, featuring 100k and 50k race distances. Set within the scenic Southern Kettle Moraine Forest along the historic Ice Age Trail, the course offers runners a challenging and picturesque experience amid vibrant fall colors. Both races..

The Quail Trail 5K is a certified 5,000-meter cross country race held at the historic Pebble Hill Plantation in Thomasville, Georgia. The course features a challenging, hilly terrain with diverse running surfaces including pea gravel, grass, dirt, red clay, and asphalt. This event supports the Pebbl..

Located at Schenck Forest near NC State along Reedy Creek Rd in Raleigh, the Schenck Forest Trail Race is a 6.2-mile run on single-track trails through creeks and rolling hills adjacent to Umstead Park. Racers wind through the Carl Alwin Schenck Memorial Forest, a 245-acre teaching and research fore..

Central 28 Monster Mash-N-Dash 5K Run and Walk takes place in Debary, Florida, beginning and ending at the Central 28 Taproom. The fourth annual event features a 3.1-mile out-and-back course along a paved trail. It embraces a Halloween-themed atmosphere, inviting runners and walkers to dress in cost..

No Name Trail Races is a SoCalTrail event held in Cheeseboro National Park near Agoura, California. The lineup features a 50K ultramarathon, a Half-Marathon, a 5K, and a Kids 2K, offering something for a range of abilities. The atmosphere is described as low-key and welcoming, a local favorite with..

Howl-o-ween 5k – Schaumburg takes place in Rolling Meadows, IL at Busse Woods. This pet-friendly 5k run/walk follows a scenic, paved, flat out-and-back Busse Woods Trail and is timed by J3 Timing with live results. The event supports animal charities, featuring Fetching Tails Foundation as a partner..

Canyonlands Ultra is a Moab, Utah trail ultramarathon as part of Mad Moose Events' Run Moab Series. It offers six distances: 100K, 50 Mile, 50K, Marathon, Half Marathon, and 15K. Runners traverse Moab’s trails with sandy washes, technical double-track, and sweeping views of the La Sals, towering san..

The Grills Trail Run, hosted by the Westerly Track & Athletic Club, takes place at Grills Preserve in Westerly, Rhode Island. Scheduled for October 25, 2025, it features two race distances: a 10-mile and a 10K. Both courses start and finish at Grills Preserve, showcasing scenic trails with about 80%..

Run the Chessie is a USATF-sanctioned trail running festival in Lexington, Virginia, with events on the Chessie Nature Trail along the Maury River. The lineup includes a marathon, half marathon, 10K, 5K, and a 26.2 Relay. The trail is a smooth gravel-grass surface with gentle grades, running entirel..

Mendon Trail Run, organized by the Rochester Orienteering Club, is a long-running fundraiser at Mendon Ponds Park in Pittsford, New York. Since 1994, it offers 10K, 20K, 30K and 50K distances on the park’s east side. The 10K loop unfolds on trails and grassy fields with rolling hills and about 1000..

McNotagain Fall Trail Runs takes place at McNaughton Park in Pekin, Illinois, offering distance options: 3.5 miles, 10 miles, 30 miles, and 50 miles. In a flat Central Illinois setting, the course features the same full 10-mile loop run in reverse, providing a fresh perspective while preserving fami..

The Greenway Trick 'R Trot is a Halloween-themed trail race held at the Pruitt Trailhead in Dunnellon, Florida. Scheduled for October 25, 2025, the event offers multiple race options including 5K and 10K runs and rucks, as well as combined 5K+10K challenge races. Participants race through scenic tra..

Door County Fall 50 is a solo and relay ultra held in Door County, Wisconsin, running a point-to-point 50-mile course from Gills Rock to Sturgeon Bay. Set against fall colors and scenic village views, the route features rolling hills and water-adjacent segments that can yield a personal best. Solo r..

Casper's Trail Races on Oct 25, 2025, take place in San Juan Capistrano, California, offering trail distances: 10K, 13.2 miles, 30K, marathon, and 50K. The event, hosted by KHraces, aims for a well-supported, well-marked experience with swag, highlighting Orange County’s fall trail atmosphere. While..

Georgetown, TX: The Jameson 5K at Southwestern University is the 25th annual trail race on the campus cross‑country course, with in‑person 5K events (including a Southwestern University Student 5K and a 55+ Senior 5K), plus a Mosey and a Virtual 5K. The fundraiser honors Jaysn Flynn Jameson and supp..

North Point Fright Night 5K & Haunted Trail is a Halloween-themed community event at North Point High School in Waldorf, Maryland, on October 25, 2025. The day features a 5K on the school’s official cross-country course (certified for competition) with three race waves: Elite, Middle School & Younge..

Andy’s Backyard Ultra is a last-person-standing ultramarathon held at Teventrails in Earlysville, Virginia, about 14 miles northwest of Charlottesville. The event uses the Backyard Ultra format: competitors must complete a 4.17-mile lap within one hour, and laps continue hourly until only one runner..

Monster Dash 5K at The Bates Motel, presented by Nolan Painting Inc., is a family-friendly autumn running event in Glen Mills, Pennsylvania. The 5K is a multi-surface cross-country course that winds through Arasapha Farms and The Bates Motel Haunted Hayride, offering a Halloween-tinged atmosphere. A..

Haunted Trail Run 5k/10k, a Halloween-themed race, is held Saturday, October 25, 2025 at French Shelter Park in Cincinnati, OH. The course offers a 5K route and a 10K route (two loops of 5K). The event blends spooky atmosphere with running, encourages costumes and features a Best Costume Award.All f..