Trail Running Calendar United States 2026-2027

Experience a 5k obstacle mud run designed for unity and women empowerment at Kimball Farm in Haverhill. Join a supportive community for a day of teamwork and mud while supporting the National Breast Cancer Foundation.

The 37th Smith's Challenge Trail Run is a 5 mile trail race at Lancaster County Central Park on June 21, 2026. The course covers trail, road, river bed and grass with a midpoint water stop and a supported water crossing; awards follow.

Experience a focused uphill challenge at the Bird Ridge Hill Climb in Indian Alaska. Choose between the three mile Full Climb or the shorter Jack's Run for a vertical racing experience organized by the Alaska Mountain Runners.

A community-focused trail festival in Gold Hill, Colorado, with 28K, 12K, 5K and Kids 1K races, a shuttle from Boulder, and proceeds supporting wildfire preparedness for the town.

Field & Forest 5 Miler is a roughly 5 mile trail race on the Crystal Spring property in Brunswick, ME. The mostly off pavement course has single track and wood bridges, and the field is limited to 50 runners.

Three one-mile races at a single venue in Clark, NJ on 06/21/2026. Each mile is timed separately and the three times are combined for overall scoring within a two-hour completion window.

The Longest Day 5K - Gray will take place in Gray on Sunday 21 June 2026. You can run 5 kilometers.

A weekly cross country series offering thirteen 5K races on Tuesday nights from April to July. The event takes place at Central Park in Parsippany and is open to all ages and abilities. Participants can register for the full series or pay f..

Experience the forest trails of Carkeek Park in Seattle with 5k and 10k options featuring rolling hills and post-run festivities. Enjoy a community atmosphere with refreshments and awards in a beautiful wooded setting.

Join this weekly trail running series at the Catamount Outdoor Family Center featuring distances from 5k to 10k. There are special categories for children and water stations available on site for all runners.

A 5k trail run at Gypsum Canyon Wilderness on June 24, 2026 over fire roads and single track with about 350 ft of elevation gain. One aid station at mile 2.2 and a cupless race policy.

Explore the scenic trails of Monroe County during this four part mid week race series. Enjoy chip timed runs through various local parks along with post race cookouts and custom series participant awards.

An eight week trail series at Northshore Trail in Flower Mound featuring chip timed 5K and 10K races, weekly podiums and final series awards, with a course on Loop 5 and Loop 6 and scheduled rain dates.

An 8.6 mile trail run at Minnewaska State Park Preserve on June 24 with chip timing and commemorative towels for finishers. Entry is limited to 250 runners and parking carries a 10 USD per car fee.

Experience a high altitude outdoor festival in the highest incorporated town in North America featuring trail running mountain biking and duathlon. Enjoy a weekend of racing and meadow camping surrounded by 14,000 foot peaks.

A three day running and wellness camp at Stable View in Aiken, South Carolina, mixing trail runs, coaching, nutrition seminars, yoga, and a personal safety session with chef prepared meals and single or shared lodging options.

A three-race summer trail series at West Hill Dam featuring well-marked wooded single and double-track trails, limited fields, age-group prizes, and a portion of fees donated to local food pantries.

Trail ultramarathons around Sturgis, South Dakota on June 26 and 27, 2026 offer 100 mile, 50 mile, 50K and 30K options. Courses use the Centennial and Deerfield trails, include multiple aid stations, and provide bus transport to remote star..

Multiple-distance ultratrail event on the Palouse to Cascades Trail centered at Hyak Sno Park on June 26–27, 2026. Courses include 100K, 100 Mile and 200K with supported aid stations, crew access, mandatory gear, and drop bag support.

A 100 mile loop in Butte, Montana on June 26-27, 2026, starting and ending at the Belmont Mine and routing 63 miles on the Continental Divide Trail. The high altitude course includes nearly 14,000 ft of elevation change and a 40 hour cutoff..