Trail Running Calendar United States 2026-2027

Denali 100K is a point to point ultramarathon on the Denali Highway in Alaska on June 21 2026. The field is limited to 50 runners who must use mandatory support crews and finish within an 18 hour time limit.

A supported point-to-point ultramarathon along about 131 miles of the Denali Highway from Paxson to Cantwell, with roughly 8,800 feet of climbing, mandatory support crews, a 48-hour cutoff, and specific multi-race qualifying requirements.

Experience a point to point mountain marathon on the Foy's to Blacktail Trail system in Montana. This limited entry event supports local trail maintenance and features a scenic course through wildlife habitat.

Experience a 3.6 mile trail run at French Park featuring meadows and multiple creek crossings. This fourth leg of the Dirt Days Trail Series offers age graded awards and random door prizes in a picturesque Cincinnati park.

Run or walk through the scenic Wildwood Metropark in Toledo. The event features a mixed-surface 5K and a paved 1-mile walk, with all proceeds supporting local parks. It's a family-friendly outing for a good cause.

Enjoy the longest day of the year with an 80s themed beach run at sunset in Myrtle Beach. Participants are encouraged to wear costumes for raffle prizes while enjoying snacks and music on the sand.

Run a scenic yet rugged half marathon trail race at Lynn Woods Reservation in Massachusetts. This 13.1-mile event features three challenging loops showcasing the historic Stone Tower. The focus is on sustainability and a centralized start/f..

Run through the wooded trails of Turkey Run Park to support local wildlife rehabilitation. Choose a timed 5-mile race with awards or a 3-mile fun run. All participants get a medal and hoodie, with snacks and door prizes at the finish.

Experience the peaks of Colorado through a series of four half marathons and a 25 km trail race. Run through iconic locations like Estes Park and Nederland while supporting local youth programs.

A low-key trail event at Lula Lake Land Trust near Chattanooga offering an easy 5K and a more technical 15K with rope sections and a descent to Lula Falls. Hikers welcome; proceeds benefit the land trust.

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.