Trail Running Calendar United States 2025-2026

The Mountain Mama Farms Classic, held in Summerville, Georgia, is a cross-country running event set on private farmland in Northwest Georgia. The course features a fast, 3.5-mile loop with minimal elevation change, making it ideal for runners aiming to cover maximum distance in either 4 or 8 hours...

The Mammoth Cave 50K/25K is a trail running event scheduled for October 25, 2025, in Mammoth Cave National Park, Kentucky. This race features two distances: a 50K and a 25K, both set on a scenic, wooded trail with challenging terrain. The event is designed for both novice and experienced trail runne..

The Oakland Hills Trail Run, held at Redwood Regional Park in Oakland, CA, offers challenging trail races in three distances: 10K, half marathon, and 35K ultramarathon. Set in a serene redwood forest with towering 150-foot coast redwoods, the course features technical dirt trails and fire roads with..

The Grills Trail Run, organized by the Westerly Track & Athletic Club, is part of the WTAC Fall Race Series and will take place at Grills Preserve in Westerly, Rhode Island. Participants can choose between a 10-mile and a 10K race, both showcasing the scenic trails and natural beauty of the area, in..

The Cougar Mountain Trail Run, held at King County’s Cougar Mountain Regional Wildland Park in Newcastle, Washington, offers a scenic trail running experience just 15 minutes from Seattle. The event features multiple race distances: 5k, 7.6 miles, 19.5 miles, and 50 kilometers, with elevation gains..

The Bridge Burner Ultra is a scenic trail running event held in Canon City, Colorado, known as "The Climate Capital of Colorado." The race features multiple distances including a 35-mile loop, 50K, 35K, and 10K. The course starts along the Arkansas River, passing through historic granite tunnels on..

The Ozark Trail 100 Mile Endurance Run is a challenging ultra-running event held in Steelville, Missouri, traversing 101 miles of the pristine Ozark Trail through Mark Twain National Forest. Celebrating its 17th year, the race features nearly continuous single-track trails with about 12,000 feet of..

The Tussey Mountainback 50 Mile Ultra is a scenic ultramarathon held in Boalsburg, Pennsylvania, within Rothrock State Forest. The event features a challenging 50-mile loop course that is 82% dirt and 18% paved, with varied terrain including uphill, level, and downhill sections, shaded areas, and sc..

The Greensprings 24 is a 24-hour endurance race held in Williamsburg, VA, benefiting The Arc of Greater Williamsburg, a nonprofit supporting adults with developmental disabilities. The race features a USATF-certified 2.215-mile loop course on mainly flat, scenic, crushed gravel trails with minimal e..

Among the Trees is a scenic running event scheduled for October 25, 2025, in Dousman, Wisconsin. Participants can choose between two challenging distances: 100k and 50k, both set against the beautiful backdrop of the Southern Kettle Moraine Forest along the historic Ice Age Trail. The race begins at..

The Encinitas Beach Run is a unique running event held at Moonlight Beach in Encinitas, California. Participants run on the sand at low tide along a scenic coastal course between Moonlight Beach and Grandview. The event offers 5k and 10k distances with turnaround options, plus a kids' 1k race for ch..

The Yippee-Ki-Yay 50K, Half Marathon, and 10K races take place annually in Council Bluffs, Iowa, on the scenic Wabash Trace Nature Trail. This event features a 50K ultra marathon, half marathon, and 10K race, all run on a crushed limestone Rails-to-Trails course with beautiful Heartland countryside..

The Bare Buns Desert Run is a unique 5K trail race held at Shangri La Ranch in New River, Arizona. Participants are encouraged to run nude, although clothing is not mandatory, and the race offers a fun, liberating experience through desert trails, including hiking trails, dry washes, and ranch areas..

Legends of the Valley is a trail-running event held at Valley View Nature Preserve in Milford, Ohio. Scheduled for October 25, 2025, it celebrates nature, history, and personal achievement. The event features three distinct races: the Arrowhead Trail 5K cross-country race, the Mastodon 2-Hour Endura..

The Naatsisaan Trail Races, scheduled for October 25, 2025, at Navajo Mountain, Utah, features a variety of running events including the Naatsisaan Ultra, a 10-miler, and a 5K. Participants will navigate scenic and challenging courses that showcase the stunning landscapes of Dine’ Bikeyah. The event..

The Last Man Standing - Lumberton will take place in Lumberton on Saturday 25 October 2025.

The Haunted Hills 10K in Redwood City is a unique nighttime running event featuring a spooky, festive atmosphere. Participants run through wickedly decorated neighborhoods, navigating approximately 36 checkpoints along the 10K course. Runners, in teams of one to five, engage in a fun challenge by an..

The Last Cowboy Backyard is Nebraska’s first Backyard Ultra event, held in O’Neill, NE, starting at the community center. The race features a 4.17-mile out-and-back course along the flat, non-technical Cowboy Trail, ideal for achieving high mileage and personal records. Participants run one lap ever..

The Range of Light Trail Races, held in Bishop, California, offer four distances: 5k, 10k, 33k, and 50k, showcasing the scenic Eastern Sierra trails and dirt roads. The event benefits Inyo County Search and Rescue and features courses with varied terrain, including steep single tracks and fast dirt..

The Great Turtle Trail Run is a scenic running event held annually on Mackinac Island, Michigan, typically during the last open weekend of the season in late October. The event features a challenging half marathon (13.1 miles) and a 5.7-mile run and walk, both courses showcasing the island’s beautif..