United States
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Alabama3
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Alaska
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Arizona4
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Arkansas1
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California20
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Colorado6
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Connecticut2
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Delaware
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District of Columbia1
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Florida24
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Georgia7
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Hawaii2
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Idaho3
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Illinois9
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Indiana10
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Iowa3
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Kansas4
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Kentucky4
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Louisiana
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Maine4
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Maryland3
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Massachusetts4
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Michigan5
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Minnesota1
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Mississippi
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Missouri4
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Montana2
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Nebraska1
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Nevada4
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New Hampshire
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New Jersey6
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New Mexico
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New York11
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North Carolina13
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North Dakota
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Ohio9
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Oklahoma3
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Oregon2
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Pennsylvania6
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Puerto Rico
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Rhode Island1
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South Carolina3
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South Dakota
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Tennessee5
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Texas21
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Utah5
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Vermont6
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Virginia8
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Washington5
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West Virginia2
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Wisconsin1
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Wyoming
Obstacle Race Calendar United States 2026-2027
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Explore the best obstacle runs in the United States for 2026-2027! Our updated list features 237 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
An obstacle course race on June 13, 2026 at Riverside High School in Chattaroy, WA. The 5 mile course features 30 plus obstacles, competitive and open divisions, prizes for top competitive finishers, and proceeds support the school.
A 5K trail and obstacle run on the 400 acre Gaylord Specialty Healthcare campus in Wallingford CT, featuring 24 natural and manmade obstacles and a Festival Area. Proceeds support the Gaylord Sports Association for adaptive sports and recreation.
Get ready for a muddy good time at Valley Speedway. This untimed event features a fun course with around a dozen waist deep mud pits over a few miles. Afterward, celebrate with friends and family at the festival area.
Push your limits at TRYROX Race Series HalfRox on June 13 and 14, 2026 at C26 Hub in Overland Park, KS, a HYROX simulation alternating runs with eight workout stations. Compete solo or in doubles and chase series cash prizes.
Tackle more than a dozen obstacles over a 3 mile course at the IU East cross country course. This event supports the Reid Health Athletic Training Program. Expect mud, a finisher medal, and a lively Fan Zone.
Get muddy at the Georgia International Horse Park. Choose between Value or VIP registration, each including a medal and post race party. Spectators cheer for free.
Get ready for a muddy adventure at the 14th annual Holiday Valley Mudslide. This obstacle trail run features 15 challenges across scenic mountain courses, with no extreme hazards like fire or electric shocks. Choose from a 6 mile long course, a 4.2 m..
A 5k mud run in Oak Harbor, Ohio on June 20, 2026 with 20+ obstacles and alternate challenge and Xtreme routes. Every participant receives a medal and the event will donate 10% of proceeds to Ronald McDonald House Charities.
A few miles of muddy obstacles at Colorado National Speedway on June 20, 2026, featuring about a dozen Muddy Moments, waist-deep mud pits and a post race festival. Registration offers Value and VIP packages with different included items.
The Summer Spartan Death Race pushes limits with 72 hours of grueling obstacles in Vermont's rugged terrain. This ultimate endurance test challenges both mind and body.
A 24 hour team adventure in Vermont's mountains. Teams solve physical and mental challenges together at Riverside Farm. This event is the birthplace of the Spartan Hurricane Heat.
The Spartan H3X is a tiered endurance challenge that progresses from 4 to 24 hours. Participants start at one stage and can continue, testing their limits at Riverside Farm in Vermont. The event is non-refundable and requires participants to be 18 or..
An in-person Tough Mudder event near Hugo Minnesota on June 27, 2026 offering 5K and 15K obstacle courses, an Infinity multiple-lap option, spectator access, and finisher items including a medal, shirt, headband and a post-race drink.
The Mount Sparta Challenge is a 24-hour endurance test in Vermont's Green Mountains. Runners tackle a steep 2-mile loop, competing to complete as many laps as possible.
The War-X Trilogy is an explosive obstacle course race weekend in Southern Ohio. It combines a military-style Battle Challenge, a 3k speed race, and unique features like giant water slides. The event aims to simulate a mission in a war-torn environme..
An obstacle course Last Man Standing event in Binghamton on June 27–28, 2026 where athletes run roughly 3 mile loops each hour until one remains. Relay teams of 3 to 6 complete either 12 or 24 hours as a team.
A mud run and kids 1 Mile in King George, VA on June 27, 2026 featuring a 4 Mile course with obstacles and a team challenge, plus awards and a fundraiser for the Dahlgren Lions Club.