Trail Running Calendar United States 2026-2027

Trail event in Castro Valley featuring a 100k, 50 mile, and marathon with UTMB index status and firm time limits due to park permits.

Trail races at Clarkco State Park near Quitman, MS with 50K, 25K and 12.5K run on a 7.78 mile loop; on course aid and camping available.

Point to point 26 miler in the Slide Mountain Wilderness with nearly 7,000 feet of vertical gain and multiple aid stations; proceeds support land conservation.

A long running cross country meet at Camp Rilea near Seaside Oregon featuring multiple flagged courses, chip timing, team lodging, live drum corps, and youth divisions.

A charity 5K at Coldstream Park/Legacy Trail in Lexington on September 26, 2026 benefits NICU babies, with an in-person chip timed 5K, a kids 1/4 mile dash, and a virtual 5K option with mailed shirts.

Tough Mudder Colorado at Fort Carson on September 26 2026 features 15K and 5K courses with multiple obstacles, finisher items, volunteer options, and spectator passes.

Trail race at Deception Pass State Park with 5 Mile, Half, and Full routes that start and finish at Bowman Bay and cross the Deception Pass Bridge.

A 100 mile open road urban ultramarathon through Miami neighborhoods on September 26, 2026, limited to 50 runners and relying on crew support, checkpoints and directional cards. A 30 mile Miami 130 Challenge is available after the 100 miles..

Run, hike, or bike up the mountain in Tamarack to support suicide awareness and mental health recovery. Face a challenging elevation gain while collecting tokens of strength and enjoying views of Valley County.

A 24 hour loop endurance run in Palmer Lake, CO on a 0.82 mile course at 7,240 feet, with distance awards and guaranteed buckles for early 100 mile finishers.

Last person standing backyard ultra near SP Crater in Flagstaff, AZ with repeated one-hour loops of 4.167 miles until one runner remains.

Trail races at Cossatot River State Park near Wickes AR featuring a 12.5 mile half marathon and a 25 mile marathon on rocky single track River Corridor Trail.

A 2.5-mile ascent to the summit of Mount Yonah with about 1600 feet of gain, a ruck division, and a 2 hour 15 minute cutoff.

Timed running events at Gallatin Valley Regional Park in Bozeman offer 4 hour, 12 hour and 24 hour options on a flat 1.5 mile loop with a stocked aid station and free race photos.

Trail event at Cannonsburg Ski Hill with a 100 mile everesting course, 50 mile option, 10K and 20K races, plus a Summer Everest loop challenge.

Trail Half Marathon and 10K through Massey Meadow in the Uinta Mountains, featuring views of Dry Fork Canyon's Flume Trail, staffed aid stations, and a cash prize when a new course record is set.

A trail event at Welling Ridge Trails offering 4, 8, 16, 32 and 40 mile options, a 20 lb ruck relay, and finisher awards.

An off road 5 Miles obstacle course in Saint Charles, Iowa on September 26, 2026, hosted by Contributors Breakfast Club; the local fundraiser keeps proceeds in Iowa and lets participants help design several obstacles.

A two day running festival on the Long Beach Peninsula offering races from kids dashes to a sand marathon. The weekend includes an expo, awards across many categories, and support for local charities.

A 24-hour endurance event at Bowling Green Hot Rods Baseball Park on September 26, 2026, run on a 0.31-mile concourse loop. Solo and four-person relay formats, full overnight aid station, finishers' medals, shirts and awards including a 100..