Explore the best trail runs in the United States for 2026-2027! Our updated list features 4034 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
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 Air Force Marathon is a multi distance race weekend each September at Wright Patterson Air Force Base near Dayton Ohio, with in person and virtual options, an expo, a pasta dinner, and a finish line 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 mountain trail race in Ouray, Colorado on September 19, 2026 that starts and finishes at Fellin Park. The event raises funds for the Ouray School and features aid stations and awards for top finishers.
A trail race day in Sisters, Oregon on September 19, 2026, featuring a scenic 50K to the edge of the Three Sisters Wilderness and a point to point half marathon with a net downhill. Proceeds support the Sisters Trail Alliance.
A Backyard Ultra in West Point, Iowa on September 19, 2026 featuring repeated 4.167 mile loops through Pollmiller Lake Park. Each loop must be completed within an hour and the last runner able to do one more loop is the winner.