Trail Running Calendar United States 2025-2026

The Cool Moon 100 Mile Endurance Run is a challenging ultramarathon held in Cool, California. The race features a 100-mile course composed of four loops of two distinct trails: a 13.5-mile North loop with approximately 2,200 feet of elevation gain, and an 11.5-mile South loop with about 1,150 feet o..

The "Running Wild" Trail and Fun Run is held at the Rochelle Wildlife Conservation Club in Chana, Illinois. This family-friendly event features a challenging approximately 3-mile trail race on a double-loop course with hill climbs, rocky terrain, and possible mud, making it unsuitable for strollers...

Outrun Hunger in Conroe, Texas, is a community-focused event benefiting the Montgomery County Food Bank. Held at The Lake House at Grand Central Park, it features a Timed 5K Trail Run/Walk and a 1K Color Dash, offering options for runners and families alike. The course includes scenic trail routes,..

The Red Fox Trail Run 10K, held in Cincinnati, Ohio at French Shelter Park, offers runners a scenic off-road trail experience through wooded areas, meadows, and alongside a fossil-rich creek. The 10K course consists of two loops of the 5K route, featuring significant elevation gain of 331 feet, maki..

The Run To Win At Ridgerunner is a 5K trail race held at Ridgerunner Farm and Chapel, located at 400 Creek Rd, Floral, Arkansas. Hosted by the John 3:16 Women’s Ministry, this event offers runners a scenic trail experience. After the race, participants can enjoy blackberry cobbler and pick fresh ber..

The Abe Lincoln Trail Trek is a scenic running event held at Carpenter Park in Sherman, Illinois. Scheduled for June 14, 2025, it offers both 5K and 10K race options. Participants enjoy a well-marked course featuring diverse terrain, including winding trails through lush woodlands, peaceful river bo..

The Nipmuck South Trail Race is a 15.7-mile out-and-back trail run held at Mansfield Hollow State Park in Mansfield, Connecticut. The scenic course follows the Fenton River and features varied terrain including small bridge crossings, a climb to a 50-foot cliff, fields, and woods. Runners navigate t..

The Dirt Days Trail Series - French Park Creek Crossings is a trail running event taking place in Cincinnati, Ohio, on June 15, 2025. This race features a scenic 3.6-mile course that showcases the beauty of French Park, including meadows, tall grass, and multiple creek crossings. Participants can ch..

Dirt Circus - San Francisco is a free community running event held in San Francisco, California, celebrating local trail running culture. Organized by UltraSignup, this one-day festival features a social group run with options of 3.2 or 4.5 miles, welcoming all paces and encouraging participants to..

The TSR Trail Half Marathon will take place in Adams on Sunday 15 June 2025. You can run between 10 and 21 kilometers.

Smith's Challenge Trail Run, directed by the Lancaster Road Runners Club, is a historic trail running event held at Lancaster County Central Park in Pennsylvania. Celebrating its 36th anniversary in 2025, the race offers two distances: a 5-mile and a 10-mile trail run, with the 10-mile race consisti..

The Nature Calls Trail Race, held at Lula Lake Land Trust near Chattanooga, TN, offers a low-key, no-frills trail running and hiking experience with 5K and 15K distances. The 5K course is very easy, while the 15K features challenging terrain including the High Adventure trail with a rope section and..

The Run For the Ages 10K Trail Chase is a scenic trail running event held in Nolde Forest, Cumru Township, near Reading, Pennsylvania. This unique race features an age-graded start, giving runners of all ages and genders a fair chance at the overall title by staggering start times based on age and g..

The Colorado Mountain Half+ Series 2025 is a scenic running series featuring five iconic events across multiple Colorado locations, totaling 67.9 miles. Participants can run half marathons and a unique 25K through stunning mountain landscapes including Estes Park, Georgetown to Idaho Springs, Mt. Sn..

The Catamount Weekly Trail Running Race is a community-focused event held rain or shine at Catamount Outdoor Family Center. It features multiple distances, including a 5K, 10K, half lap, and a special "Cubbies" race for children aged 5 and under. The race emphasizes safety with clear thunder policie..

The Yosemite: Tuolumne Meadows running event offers a multi-day alpine trail running experience in the High Sierra, featuring distances from 40 to 98 miles over four days. Set amid glacier-carved domes, peaks, and pristine lakes, the course traverses rugged terrain with significant elevation gain, i..

The Kodiak Mountain Series is a challenging 3-day stage race held in Kodiak, Alaska, featuring steep single-track trails with stunning mountain and ocean views. Participants race across three courses: Heitman Mountain (5.91 miles, 2,238 ft gain), Sharatin Mountain (7.76 miles, 2,777 ft gain), and Py..

The Juneteenth Menare Foundation 12k and 6k is a trail running event held at Button Farm in Germantown, Maryland, celebrating Juneteenth. The race features a challenging, hilly, and scenic course that loops through the Schaeffer Farm Trails, with the 6k consisting of one lap and the 12k two laps. Wa..

The Broken Arrow Skyrace, held at Palisades Tahoe near Lake Tahoe, California, is a premier four-day skyrunning event featuring nine challenging distances ranging from a kids' race to a 46K ultra. Set in high-alpine terrain mostly above the tree line, the courses include steep climbs, off-trail scra..

The Bighorn Trail Run is a challenging ultra-running event held in the rugged Bighorn Mountains near Dayton, Wyoming. Offering four race distances—100, 52, 32, and 18 miles—over two days, it features a remote, technical out-and-back course through the Bighorn National Forest. The 100-mile race inclu..