Explore the best trail runs in the United States for 2026-2027! Our updated list features 4053 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
A community fundraiser at Goose Island Campground in Stoddard, WI offering timed 6 and 24 hour running and walking. Participants set their own goals, from a single loop to more than 100 miles in 24 hours.
Multi-day timed ultras at Shortsville Reindeer Farm on a one mile grass and trail loop. Multiple timed options, an on-course aid barn, and belt buckles for finishers who complete 100 loops; proceeds support ROCovery Fitness.
A Last One Standing event in Bradley, California on September 18, 2026 where runners repeat a 4.18 mile loop each hour and must finish each loop within the hour to continue. The final runner to complete a loop is declared the winner.
The 2026 Air Force Marathon celebrates its 30th anniversary at Wright Patterson Air Force Base in Dayton, Ohio. Events range from a Boston qualifying marathon to a 1K kids run and include virtual options plus a weekend expo and festival.
Mile Madness is a looped trail endurance event in Auburn, California, held September 18-21, 2026. Timed events run from 3 to 72 hours with a 0.75 mile loop and options including a 100 mile race plus on-site aid and amenities.
A two day ultrafest in Moorhead on September 18 and 19, 2026 offering 3, 6, 12 and 24 hour run and ruck events on a roughly 5 mile lap with aid stations, finisher items, and awards including buckles for 100 mile and 100k finishes.
A costume friendly 5K run on gravel trails at Blake Farm that passes haunted attractions and zombie paintball scenes. Entry includes a donut, cider, t-shirt, small pumpkin, and admission to Spookyland.
An evening 5K series at Arizona Falls with three monthly races that support Child Crisis Arizona. Live events are chip timed with age group awards and raffle prizes, plus a virtual option with collectible medals.
Savage Race Georgia Fall 2026 in Dallas, Georgia offers two obstacle race options of three plus miles or five to seven miles with tiered pricing and event parking for twenty dollars at the gate.
Vermont Spartan Event Weekend at Killington Ski Resort offers mountain obstacle races over varied terrain, including a 5 km Sprint, 21 km Beast, 50 km Ultra, kids races and spectator options.
A Spartan obstacle race weekend in Monroe, Washington on Sep 19 and 20 2026 featuring Sprint, Super, Beast and kids races on wooded trails near Puget Sound and the Cascade Mountains, plus an obstacle workshop and a four hour Hurricane Heat.
Road Atlanta Trail Run is an event at Road Atlanta organized by Dirty Spokes Productions. The organizer runs off road cycling adventures and offers custom bike builds.
A 13 mile trail race in Ouray, Colorado on September 19, 2026, that supports the Ouray School and begins and ends at Fellin Park. The event features packet pickup, three water stations, aid stations on course, and awards for top finishers.