Trail Running Calendar United States 2026-2027

Three 10K night trail races in Wildwood MO with increasing climb per mile across a three week series, organized by Terrain Trail Runners.

A three day mountain biking and trail running festival in Duluth, Minnesota with races from youth XC and trail runs to multi stage enduro and downhill competitions. Courses include cross country singletrack and technical black diamond trail..

A two-day trail relay at Big Bear Camplands on August 7-8, 2026 featuring 117 miles of course, team entry options, camping, and on-site village activities.

A free 32 hour ultramarathon at Pointe Mouillee State Game Area near South Rockwood, Michigan, on August 7 to 8, 2026. Alternating daytime 8 mile and 4.6 mile loops with a 4 mile nighttime loop; participants carry their own aid.

Late Night With Bear Creek is listed for August 7, 2026 at 101 Doe Mountain Lane in Pennsylvania, United States. The listing provides the event name, date, and location.

Mountain trail running at Mt. La Crosse on August 7, 2026, with sprint, a 2 mile 1000' vertical run, a ruck challenge, and a kids race.

A remote mountain ultramarathon near Sumpter, Oregon offering 53-mile and 50K trail courses with mandatory prior ultramarathon experience; registration includes shuttle, meal, finisher award, and fairgrounds camping.

A family mud and obstacle event in Morganton NC with a one mile course, 16 obstacles, giant sprinklers, inflatables and a lazy river. Registration includes a shirt and medal, photos are free and parking is $10 per car.

Trail races from Fairhaven Park into Larrabee State Park offering 12K, 25K and 50K courses through forests, lakes and narrow ridgelines with significant elevation gain.

A half marathon and a 50K on the Dahlgren Railroad Heritage Trail in King George, VA on August 8, 2026. Mostly flat rails to trails courses with time limits, finisher medals, apparel options and postrace food including free MooThru ice crea..

Trail races of 5K, 10K, and half marathon on Frisco Peninsula trails with lakeshore finishes at Dillon Reservoir on August 8, 2026.

Forest trail races in Tahquamenon Falls State Park in August 2026 offering 50K, 25K and 10K courses with aid stations and a 250-runner limit.

Trail marathon and half in Herriman, Utah featuring extensive single track, significant elevation gain, remote aid stations, and locally made finisher medals.

A single-loop trail event in the La Sal Mountains offering 100 mile, 50 mile, and 50k distances. The 100 mile course averages over 8,700 ft elevation with roughly 25,000 feet of climbing and multiple staffed aid stations.

A Backyard Ultra at Alum Creek State Park where runners repeat a 4.167 mile loop each hour until only one runner remains.

Experience 100 miles of rugged Appalachian terrain and 20000 feet of elevation in this scenic loop through Pennsylvania. Runners navigate wild footpaths and rocky climbs in one of the most demanding trail races in the region.

A multi-hour run and ruck event in Spokane with looped dirt trails, self-support expectations, an aid station, youth loop option, and volunteer incentives.

Haulin Aspen is an all-trail running event on August 8, 2026 near Bend, Oregon. It features a full marathon, half marathon, a 6.5 mile course, and a new three person marathon relay on forested single track.

Experience a technical seventeen mile trail run along the Hudson River cliffs with over five thousand feet of elevation change. High endurance is required for this rugged course featuring boulder scrambles and scenic river views.

Experience trail running near the Blue Ridge Mountains with 15K and 5K races at Table Rock State Park. Navigate creek crossings and climbs toward Pinnacle Mountain to earn finisher awards and enjoy mountain views.