Trail Running Calendar United States 2025-2026

The Mental Health Ultra Marathon, held in Newnan, Georgia, offers 50K, half marathon, and 10K distances on a scenic 6-mile loop course featuring rolling hills and 450 feet of elevation gain per loop. The course is single track and suitable for all experience levels. Runners complete one loop for the..

Turkey Trails - Oklahoma City is an annual running event that features a variety of races, including a 1 Mile, 5k, 10k, Kids Dash, and a Virtual Race option. Scheduled for November 15, 2025, this family-friendly event takes place at Stars & Stripes Park and aims to promote fun, fitness, and communit..

The Tierra Redonda Mountain Trail Run and Camp is a trail running event held in Bradley, California. It offers a variety of race distances including 48-hour and 24-hour endurance runs, as well as shorter 20km, 10km, and 5km races. The event is part of the AllWeDoIsRun series, known for creating trai..

The Fast Eddie 50K and 5K is a running event held at Lapham Peak in Delafield, Wisconsin, on November 15, 2025. The race celebrates endurance and community, honoring Ed Condon and supporting the Little Warrior Foundation, which aids children battling cancer. The 50K features five loops on the scenic..

The Forge Trail Run Festival, scheduled for November 15, 2025, in Lemont, IL, features a variety of trail running events including 10K, 20K (Half Marathon), 30K, and 60K races. Participants will navigate single and double-track trails through scenic woods and gravel paths around the historic Lemont..

The Falcon Crest Winter Trail Challenge is a trail running event held in the scenic foothills of El Dorado Hills, California, near Folsom Lake. The race offers multiple distances including 5K, 10K, 15K, half marathon, 30K, and a trail marathon. The course features mostly single-track dirt and rocky..

The Fast Bananas Trail Race at Serenbe is a scenic running event held in the wellness community of Serenbe, near Atlanta, Georgia. Scheduled for November 15, 2025, the race offers 5K and 10K trail runs along with a 1-mile fun run for kids aged 5-12. The course features beautiful nature trails surrou..

The Louisville Trail Race, held annually in Louisville, Colorado, features a Half Marathon, 10K, and 5K on scenic front range trails. Celebrating its 12th year, the event offers mostly flat courses with challenging hills that provide stunning views of the Flat Irons and front range mountains. The ha..

The Tierra Redonda Mountain Trail Run and Camp is a trail running event held in Bradley, California. It offers multiple race distances including 48-hour, 24-hour, 20km, 10km, and 5km options, catering to a wide range of endurance levels. The event is part of the AllWeDoIsRun series, known for creati..

The Fall Backyard Burn at Hemlock Overlook is a trail running event held in Clifton, Virginia, featuring 5-mile and 10-mile race options. Set in the scenic 425-acre Hemlock Overlook Regional Park along the historic Bull Run, the course offers a mix of hiking trails, old dirt roads, and open fields w..

The Baystate Dirty Dog Trail Run-Ruck-Walk 5k is a unique outdoor event held in Berkley, MA, designed to honor military personnel, first responders, and their K-9 companions. Participants can choose to run, ruck with weighted packs, or walk the rugged 5k trail, all while reflecting on the sacrifices..

The Tarrywile Half Marathon, held at Tarrywile Park in Danbury, Connecticut, is a challenging trail race known for its significant elevation gain of nearly 3,000 feet and technical Northeast single-track terrain. The course offers stunning views of Danbury and the park's tranquil lakes. Runners can..

The Li'l Rhody Runaround Trail Run is a popular running event taking place at Burlingame State Park in Charlestown, Rhode Island. Scheduled for November 16, 2025, the event features two race options: an 8-mile course and a 4-mile course, both set against the scenic backdrop of Watchaug Pond. This ra..

The Fat Ox Endurance Runs is a multi-distance ultrarunning event held at Estrella Mountain Regional Park in Goodyear, Arizona. Featuring a USATF-certified 0.988-mile loop course, the event offers distances including 48-hour, 24-hour (hosting the USATF 24-Hour Championship), 12-hour, 6-hour, 100-mile..

The 16 Hour Lock-In is an ultrarunning event held at Carolina Beach State Park near Wilmington, North Carolina. Participants have 16 hours to complete as many 4.5-mile loops as they wish on a relatively flat, groomed trail featuring two hills and varied terrain including dirt, sand, pine straw, and..

The Fall Creek 100 is an ultramarathon event held in Spencer, Tennessee, featuring race distances of 50k, 100k, and 100 miles, with backup options including a marathon and 50 miles. The course showcases the scenic Fall Creek Falls State Park, one of Tennessee's largest parks, with highlights such as..

The Dinosaur Valley Endurance Run, held at Dinosaur Valley State Park in Glen Rose, Texas, offers a challenging trail running experience with five race distances: 100 miles, 100K, 50K, 25K, and 5 miles. The course features a mix of terrain including soft dirt, rocks, roots, and gradual hills, making..

The Colorado Cold Rush Ultra is a winter trail running event held in Colorado Springs, featuring distances of 50K, half marathon, and 10K. The race offers a scenic and challenging course that includes historic High Drive and the tunnels from the Colorado gold rush era. The 50K starts at Bear Creek R..

The Circle Endurance Event is a challenging ultra-distance race held at Ringgold High School in Ringgold, Georgia. Participants can choose from 3, 6, 12, or 24-hour durations, running continuous laps on a track to cover as much distance as possible within their chosen time. The event emphasizes stra..

The Duncan Ridge Trail 50K/30K is a challenging trail race held in the North Georgia Mountains, starting and finishing at Vogel State Park’s Lake Trahlyta near Blairsville, GA. Known as one of the toughest 50Ks in the Southeast, the course features over 10,000 feet of elevation gain along the rugged..