Trail Running Calendar United States 2026-2027

An out and back on the Badger State and Sugar River rail trails in Belleville, WI on May 23, 2026, offering 50 mile, 50K and half marathon options with aid stations, photos, pizza and beer provided.

A 12 and 24 hour endurance run on a 3.68 mile loop at Keweenaw Mountain Lodge in Copper Harbor, Michigan. Teams or solo runners alternate on course while passing wooded trails, a historic golf course and views of Brockway Mountain and Lake..

A multiwave obstacle course at Byron Motosports Park offering 10K, 5K, ruck, and kids divisions, with Special Forces and Endurance competitive formats and team entry packs available.

Honor fallen service members at this patriotic trail event in Black Canyon City featuring 5K and 10K options. Run or ruck the scenic out and back course while proudly carrying the American flag.

Participate in a USATF certified 5k or 1 mile fun run in Fort Gibson during Memorial Day weekend. Support the installation of permanent flags while running through a scenic course honoring past and current service members.

A time based endurance event on a scenic 5K loop offering six hour and twelve hour formats for solo runners, teams, and walkers, with Runners Village, optional camping, live tracking, and post race awards.

Austins Backyard Marathon on May 23, 2026 in Central Texas uses a last person standing format of repeated 4.167 mile (6.7 km) loops. Medals are given for completing at least one loop and for half marathon, marathon and ultra distances.

A nighttime loop race at Cline Buttes in Redmond Oregon offering 3, 6, and 12 hour options, a Last Person Standing format, and a one-loop 5k. The 3 mile loop includes a 0.5 mile 800 foot climb and a single aid station.

Enjoy a donation based trail run through the scenic Ouachita National Forest with 20 mile and 12 mile options. Finish your day with a community cookout and season celebration at the Lake Sylvia Day Use Area.

Trail and mountain bike races take place on singletrack trails along the San Gabriel River in downtown Georgetown. Distances range from a youth one mile to a 50K and the event uses chip timing and marked aid stations.

Trail races in Portland's Forest Park over Memorial Day weekend, featuring Portland's only 50K and a trail half marathon. Routes include the Wildwood Trail and other park trails with significant elevation gain.

West Virginia Trail Fest is a weekend of trail races in Pocahontas County centered on Snowshoe Village. Races from a kids mile to a 100K traverse state parks, historic fire towers, and local landmarks.

The Dark Skies 100K is a point to point trail race from Seneca State Forest to Snowshoe Village, following the Allegheny and Greenbrier River trails and passing Bald Knob and the Green Bank Observatory with about 11,500 ft of elevation gain..

Hurricane Creek offers a half marathon, 5 mile and 5k around Joseph City Park with an out and back, hilly course rising from about 4,200 to 5,100 feet. The event includes a kids mile, packet pickup, awards and finisher medals.

A trail run at Oak Mountain State Park on Saturday May 23, 2026 offering 6 and 12 mile courses. Registration closes May 20, shirt cutoff is May 9, and active military may run free with ID.

An 8 mile uphill race to the historic ghost town of Cerro Gordo near Keeler, California, gaining about 4,600 feet. The event includes aid stations, a mountaintop barbecue and music, shuttle vans, and nearby camping options.

Experience the final 70 miles of the Western States trail during this three day training event featuring supported runs of 19, 20, and 32 miles through iconic canyon terrain and mountain climbs.

A 5K trail run and a virtual 5K organized by the City of Palm Bay at Turkey Creek Sanctuary, with race shirts, medals for the first 300 registrants, on-site packet pickup, and age-group awards.

A 12K trail run on the City of Norton Flag Rock Area Trails in Norton, VA. The ninth annual event raises funds for the Norton Friends and Farmers Market Senior Supplement Program and has registration deadlines in May 2026.

Night trail event at McDowell Mountain Regional Park on May 23, 2026, featuring 50K, 25K, 15K, 10K and 6K on rolling desert singletrack. Courses include stocked aid stations, a cupless policy, crew access at the start and finish, and course..