Trail Running Calendar United States 2025-2026

The Glen Iris 5K & 10K Trail Run/Walk is a scenic event held within Letchworth State Park, known as the "Grand Canyon of the East," in Castile, NY. Participants will enjoy challenging woodland trails with breathtaking views of the Genesee River Gorge, wildlife, streams, and bridges. The race feature..

The Country Roads Trail Run takes place at the Summit Bechtel Reserve in Glen Jean, West Virginia, near the iconic New River Gorge. This event offers two race distances: a 10K and a half marathon, both featuring varied terrain that includes wide singletrack trails, steep climbs, and technical off-tr..

The Macedonia Trail Race, held in Macedonia Brook State Park near Kent, Connecticut, offers a unique trail running experience with lush singletrack trails, challenging climbs and descents, and stunning viewpoints including Cobble Mountain, where runners can see the Catskill Mountains on clear days...

The Breckenridge Oktoberfest 5K is a festive trail run held in historic downtown Breckenridge, Colorado, as part of the larger Oktoberfest celebration. This 5-kilometer race takes runners through scenic Town of Breckenridge Trails, showcasing beautiful fall foliage and mountain views, including chan..

Run Rabbit Run is a challenging ultra-running event held in Steamboat Springs, Colorado, featuring 50-mile and 100-mile races through the scenic Routt National Forest. The 50-mile course starts at the Steamboat Springs ski area (6,900 ft elevation), ascending to Mount Werner (10,568 ft), crossing th..

The Rut Mountain Runs is a three-day mountain running event held at Big Sky Resort in Montana, scheduled for September 12-14, 2025. It features a variety of race distances including a 50K, 28K, 21K, 11K, and the Lone Peak Vertical Kilometer, as well as a Kids 1K Runt Run. A special Trifecta challeng..

The Lake Superior Shore Run is an annual event held at Little Presque Isle Recreation Area near Marquette, Michigan. The 32nd edition features a half marathon, 5K run, 5-mile hike, and a 1-mile kids race along the scenic shores of Lake Superior. The half marathon course includes 1.5 miles along beac..

The Hobo Trail Runs, hosted by Rockford Road Runners, take place at Rock Cut State Park in Rockford, Illinois. This annual event offers multiple trail running distances including 10k, 25k, and 50k races, with options to participate in single races or the challenging Triple Crown series (85k total) o..

The Goat Rattler 100 is a challenging ultramarathon held in North Ogden, Utah, starting at McGriff Park. The course features 101 miles of rugged terrain with 22,500 feet of elevation gain, consisting of 97% single-track trails that showcase stunning views of the Wasatch Mountains. Known for its toug..

If You're Not First You're Last is a unique endurance running event held in Eagle, Idaho, featuring a challenging 4.167-mile loop course. The race tests participants' stamina and grit rather than speed, as runners must complete each loop within an hour and return to the starting corral at the top of..

Dirt Circus - Chicago is a free community running event held in Crystal Lake, Illinois, celebrating local trail running and races. Organized by UltraSignup, this one-day festival features a social group run with options of 3 or 5 miles through scenic Veteran Acres Park. The event fosters camaraderie..

The 13th annual Blood, Sweat & Tears Run in Mount Gretna, PA, promises to be an exciting event featuring three scenic courses along the Lebanon Valley Rails to Trails. This timed event ensures safety with police support and volunteers. Participants can look forward to post-run festivities, including..

The Mountain Lakes Trail Run & Walk in Princeton, NJ, is a scenic event held at the Billy Johnson Mountain Lakes Nature Preserve, benefiting the Friends of Princeton Open Space. It features a 5K+ trail run and a 3K walk, both starting from Community Park North Amphitheater. The trail run covers abou..

The South Hills Single Track Trail Run - Summer, held at Calero County Park in San Jose, CA, offers a variety of distances including 50K, trail marathon, 16-mile, half marathon, 9-mile, 10K, 5K, mile, and a kids run. The course features challenging single track trails, hills, dirt paths, oak trees,..

The NCVRC Run for Hope will take place in Morrisville on Saturday 13 September 2025.

The Horsethief Canyon Trail Run is a 10K race held in Kanopolis State Park near Marquette, Kansas. The course follows the Horsethief Canyon Trail, a multi-use path featuring hills, rocky terrain, sand, and up to five shallow water crossings. The run begins with about half a mile on road before trans..

The Iron Will 100 in Junction City, Kansas, is a challenging ultramarathon event featuring multiple distances: 100 miles, 100K, 50 miles, 50K, and a 36-hour timed option. The course is a flat, fast river trail with approximately 75% shade, designed as out-and-back loops—ten for the 100-mile race and..

The Riverbend Ultras 12 HR/50K is a community-focused ultrarunning event held at the River Pavilion on Picnic Island in Riverbend Park, Jupiter, Florida. Participants run on scenic gravel trails along the Loxahatchee River, including part of the Lake to Ocean Trail, surrounded by local wildlife such..

Run for the Hills is an annual 5K trail run and walk held at the Oswegatchie Hills Nature Preserve in Niantic, Connecticut. The event offers participants a scenic course around Clark Pond and along the preserve's perimeter, showcasing over 450 acres of coastal forest. Designed as a fundraiser, proce..

The Oak Flats Picnic Trails event, held in Tijeras, New Mexico within Cibola National Forest, offers a free, self-supported trail running experience suitable for all abilities, including dogs. Participants can choose distances from 5k to 30k by completing laps on two looped courses—a short 3.2-mile..