Explore the best trail runs in the United States for 2026-2027! Our updated list features 4312 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
Muddy Princess Albany is a 5 km obstacle mud run for women held at Harley Rendezvous Classic Inc. Join this non competitive event focused on unity and empowerment while supporting the fight against breast cancer.
Experience a 6 mile trail run through the Mt. Hood National Forest featuring stream crossings and steep terrain. Enjoy group camping and a post race beer garden at the McCubbins Gulch Campground.
A 5K trail run and walk on Tiger Mountain with an out and back route over unpaved roads and a short cross country section. The event is clothing optional and is sponsored by Tiger Mountain Family Nudist Park.
A 5K trail race on July 12, 2026 at Stillwater Prairie Reserve in Covington, OH, as part of the Miami County Park District Trail Run Challenge. Multiple pricing and series options are offered; no dogs are allowed.
A 9 mile trail race at Bradbury Mountain featuring two laps of hilly technical single track, a 3 hour cutoff, and a 180 runner field cap. Part of the Bradbury Mountain Trail Race Series with series prizes and apparel rewards.
A 5k mud and obstacle run at Baja Acres near Birch Run in Millington, Michigan in July 2026, with separate kids and adult waves. Participants must bring a signed waiver and adults a photo ID; spectators pay $10 cash for festival access.
A 3k obstacle course race with over 25 obstacles and a three-band penalty system, the Ultimate OCR 3K features Elite and age-group divisions, chip timing, medals and shirts for finishers, and a reported prize purse for Elite winners.
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..
Into the Wild is a 5k trail run at Saddleback Wilderness on July 15, 2026, over fire roads and single track with 300 ft of elevation gain. Entry is limited to 150 runners and there is no race day registration.
Experience a midweek evening trail run through the diverse terrain of Bowdoin Park. This 5 mile race features a mix of grass and rocky trails with awards for top finishers and a food drive for the local pantry.
Experience the STRS Horseshoe Gulch Grind in Breckenridge with short and long course options. This trail event offers categories for adults and youth starting from the Blair Witch Trailhead.
A 100 mile trail ultramarathon near Easton, WA featuring about 23,000 feet of climbing, roughly 32 miles on the Pacific Crest Trail and a passage through the 2.3 mile Snoqualmie Tunnel. Entry was by lottery and participants must meet trail..
A 100 mile mountain ultramarathon in Ouray, Colorado, featuring about 41,862 feet of elevation gain and 14 climbs. Entrants must complete volunteer service or pay a $100 opt out; top finishers face drug testing for cash prizes.
Experience a high school style cross country meet in Carterville featuring a 5k course on grass and gravel. Join as a team or run solo in this evening event with awards for top individuals and teams.
An endurance loop event at the Pinetum in Lowell Park, Dixon IL, using a 0.411 mile paved loop. Participants choose 6 hour, 12 hour, or 24 hour formats and track their own laps with tents allowed in the loop center.