United States
- Alabama 4
- Alaska 1
- Arizona 4
- Arkansas 1
- California 19
- Colorado 2
- Connecticut 1
- Delaware
- District of Columbia
- Florida 17
- Georgia 9
- Hawaii 1
- Idaho 1
- Illinois 7
- Indiana 7
- Iowa 1
- Kansas 1
- Kentucky 4
- Louisiana
- Maine 2
- Maryland 1
- Massachusetts 2
- Michigan 6
- Minnesota 2
- Mississippi
- Missouri 3
- Montana 1
- Nebraska 1
- Nevada
- New Hampshire
- New Jersey 3
- New Mexico
- New York 4
- North Carolina 9
- North Dakota
- Ohio 3
- Oklahoma 3
- Oregon 4
- Pennsylvania 4
- Puerto Rico
- Rhode Island 1
- South Carolina 2
- South Dakota
- Tennessee 4
- Texas 11
- Utah 5
- Vermont 4
- Virginia 1
- Washington 5
- West Virginia 2
- Wisconsin 1
- 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 162 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
May 2027
Owner and dog teams tackle a 4+ mile course with 30+ obstacles at OneWorld Pet Resort in Anniston on May 15–16, 2027, with team and individual divisions and multiple awards.
Mud Factor's Seriously Fun 5K mud and obstacle run returns to Mahon Ranch in Elk Grove on May 16, 2027, with adult and KIDZ family waves and required waivers for participants.
A wet and sandy 5K obstacle course at Pere Marquette Beach featuring 25 obstacles; entries include competitive and fun run options. Registration carries a fee and each entry includes a moisture-wicking shirt, with all proceeds supporting Muskegon Res..
An obstacle course event at Byron Motosports Park on May 22, 2027 offering 10K and 5K waves, Special Forces, Ruck division and a kids course, produced by a nonprofit honoring service members.
Tough Mudder Philly on May 29, 2027 at Bear Creek Mountain Resort offers 15K and 5K courses, Infinity laps, finisher items, and an on site Mudder Village with entertainment.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Two days of Spartan obstacle races at Fort Carson on high elevation terrain, offering Sprint, Super, Beast, Ultra and kids race formats.
Obstacle course weekend at Toro Park near Salinas, CA with Sprint 5 km (20 obstacles), Super 10 km (25 obstacles), kids races and spectator access.
An annual obstacle race in Belton, Texas, about 3 miles along Nolan Creek with roughly 15 to 20 built obstacles and activities for ages 5 to 105.
A family-friendly obstacle mud run 5K at Lost Lakes Adventure Park in Oklahoma City on May 29, 2027, featuring mud pits, slides, and Value and VIP registration options.
A five mile urban obstacle event in downtown Wheeling with more than 20 obstacles and heats of 175 participants. Minimum age is 16 and each entrant receives a shirt, medal, and drink ticket.
June 2027
A multi-distance Spartan obstacle weekend at Perfect North Slopes in Lawrenceburg, IN featuring wooded courses, mud pits, hill climbs, and races from a kids course to a 50K Ultra.
Mud focused obstacle course in Pinnacle, NC with multiple 5K individual and team waves plus a 1200 m kids Pollywog race; fees vary by event.
Mud Factor St. Louis is a 5K obstacle run at Brookdale Farms on June 5, 2027, featuring adult and KIDZ family waves and a required signed waiver.
A family-friendly 5K mud run at Georgia International Horse Park on June 5, 2027 with obstacles, mud pits, a pre-party, and Value and VIP registration options.
Non profit ninja warrior style obstacle course at Gloucester County Fairgrounds in Mullica Hill NJ with tiered obstacles, team scoring and onsite first aid.
An urban obstacle race in El Paso on June 6, 2027 with a 3 Mile course, multiple start waves, recovery areas, vendors, and a finisher medal.
Tough Mudder Michigan on June 12, 2027 at Koenig Sand and Gravel in Oxford offers 5K, 15K, and Infinity laps across quarry-like terrain with 12+ to 20+ obstacles.
A family friendly mud run at Valley Speedway in Kansas City with obstacles, mud pits, slides and a lively pre party on June 12, 2027.
A 5K trail and obstacle run on the 400-acre Gaylord Specialty Healthcare campus in Wallingford, CT supporting adaptive sports and hospital fundraising.
5K mud run at Bellevue Berry & Pumpkin Ranch in Papillion NE on June 13, 2027; waivers required and spectators $10 cash.