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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 164 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
September 2026
Obstacle races near Dallas, Georgia on September 19, 2026 with options around 3 miles or 5 to 7 miles and multiple obstacles.
A two day Spartan obstacle race weekend at Killington Ski Resort featuring Sprint, Beast, Ultra and kids races on steep, off trail mountain terrain.
A two-day Spartan obstacle race in Monroe, Washington featuring Sprint, Super, Beast, kids races, a 4 hour heat, and spectator options.
Midwest OCR in Marseilles IL offers 5K and 10K obstacle runs, a competitive 10K, ruck divisions, a kid course, team packages and finisher medals.
A multi-event day in Reading, PA on 19 September 2026 with running distances, an obstacle challenge, trifecta options, adaptive divisions, and volunteer support.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Mud Factor Seriously Fun 5K mud and obstacle run at Honda Hills in Thornville, OH on September 19, 2026; all ages, waiver and photo ID required.
Timed two mile obstacle course at Richland Community College on September 19, 2026 raising funds for the Student Veterans Resource Center.
A Hawaiian themed 5K obstacle race at Allegheny RiverTrail Park in Aspinwall that raises funds for The Stanley M. Marks Blood Cancer Research Fund and Lending Hearts. Teams carry a pineapple through the course and a luau follows with live music, food..
Family obstacle event in Warren RI with a one mile course, two large mud pits, food, music and a party area; proceeds benefit Thrive Outside.
Tecumseh Warrior Challenge is an outdoor obstacle event at the Eastern Shawnee Wellness Center in Wyandotte, Oklahoma on September 19, 2026. It features a 3.1 mile obstacle race and a 1 mile fun run with water stations and finish-line refreshments.
A timed 5K Adventure Challenge with obstacles and a Kid Family Fun Run at Westside Pavilion, Tuolumne, with headbands for all and a 5K finisher medal.
Trail races of 10K, 5K and 1 Mile on the Robert Hutson Course in Moultrie GA with a race T shirt, breakfast, and proceeds to YMCA programs.
The Howler Obstacle Run at Arkansas State University on September 19, 2026 is a 10k course with about 16 obstacles, open to individuals and teams of five.
A non-competitive women only 5K obstacle mud run at Carter & Stevens Farm in Barre, MA on September 20, 2026, featuring 18 plus obstacles and a teamwork focus.
An on campus 5K in Oxford MI with a timed run, a 5K obstacle course, a virtual option, and a free kids glow run.
Two day Spartan event at Badlands Off Road in Attica IN with Sprint, Super, Beast and kids races across sand dunes, forests, rocks and creek crossings.
Obstacle course weekend at Lake Elsinore Raceway featuring Sprint 5K, Super 10K, kids races, and Hurricane Heat formats on September 26 to 27, 2026.
Tough Mudder Colorado at Fort Carson on September 26, 2026: 15K and 5K routes with 12 to 20+ obstacles, finisher medal, shirt, headband, and Mudder Village spectator pass.
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.