United States
- Alabama 1
- Alaska
- Arizona 3
- Arkansas 1
- California 21
- Colorado 5
- Connecticut 1
- Delaware
- District of Columbia
- Florida 13
- Georgia 8
- Hawaii 3
- Idaho 2
- Illinois 8
- Indiana 6
- Iowa 3
- Kansas 2
- Kentucky 4
- Louisiana
- Maine 1
- Maryland 1
- Massachusetts 4
- Michigan 6
- Minnesota 2
- Mississippi 1
- Missouri 4
- Montana 1
- Nebraska 1
- Nevada 1
- New Hampshire 2
- New Jersey 5
- New Mexico
- New York 7
- North Carolina 12
- North Dakota
- Ohio 7
- Oklahoma 3
- Oregon 3
- Pennsylvania 9
- Puerto Rico
- Rhode Island 2
- South Carolina 2
- South Dakota
- Tennessee 5
- Texas 12
- Utah 5
- Vermont 3
- Virginia 4
- Washington 3
- West Virginia 2
- Wisconsin 2
- 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 191 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
August 2026
Test your endurance at the Wildwood Navy Seal Challenge with ocean swimming and beach running. Navigate sand and water obstacles in individual or team categories on the New Jersey shore.
A women only 5K obstacle mud run in Rossville, IN on August 9, 2026 featuring 18 plus obstacles and a focus on teamwork and group participation.
A youth and family 2K obstacle course at Maxwell Park with about 15 obstacles. Waves serve ages 5 and up; participants get a shirt, medal and a timed result, with trophies for top three in each competitive age group.
Obstacle course events in Zelienople on August 23, 2026, featuring a 1.2 to 1.5 mile loop race, age-group challenges, awards, and a multi-day kids camp.
Aug 15 to 16, 2026 at Dillingham Ranch, Oahu : multi-distance Spartan obstacle weekend with Sprint, Super, Beast, Ultra, kids races and an obstacle workshop.
Awarded OCR Buddy People's Choice, Highlander Assault in Pingree Grove IL offers 3K, 5K and 15K obstacle heats plus night and haunted 5K events.
An obstacle and mud focused 5K at Village Creek Motocross Park in Dallas Fort Worth with a pre race festival, post race festival, and multiple registration packages.
Muddy Dash Philadelphia on August 15, 2026 is a family-friendly 5K mud run at Gloucester County 4-H Fairgrounds with obstacles, mud pits, and a music-filled after party.
Hill of a Race 2026 in Bloomington, IL combines a lap based Endurance Challenge with multiple 3 mile obstacle course waves, including competitive men, women, masters and several recreational waves.
A 3.1-mile obstacle course through Thomas Jefferson’s Poplar Forest with elite, team, corporate and non-competitive waves. Entry fees support Poplar Forest educational programming and packet pickup is available the day before at the service entrance.
Summit Grays and Torreys Peaks in this 8.8 mile Colorado endurance event. Participants must carry a 20lb dry load while tackling 4,101 feet of elevation gain.
Two days of mud and obstacles in Moorpark on a 5K course with 15 major obstacles, rinse stations, and a Basecamp area with food trucks, vendors and music.
A women-only 5K obstacle mud run in Glencoe, Kentucky with 18+ obstacles, open to participants aged seven and up and focused on fun and teamwork.
A 5k (3.1 miles) mud run in Oak Harbor with 20+ obstacles offering "challenge" and "Xtreme" lines, participant medals and T-shirts, and a 10% proceeds donation to Ronald McDonald House Charities.
A 5k in Owosso that mixes running with timed fitness stations. Two divisions offer set standards or self selected scaling, heats of a few athletes, event tanks and awards across competitive, masters and youth categories.
A women-only 5K obstacle mud run in Raleigh on August 23, 2026, held at North Carolina Motorsports Park with 18+ obstacles; open to women aged 7 and up who can run, jog, or walk the course.
A community tribute on August 23 featuring a 5K with digital timing, a 1 mile fun walk, a family mud run with obstacles, and a virtual 5K; proceeds support the P.H.I.L. Foundation.
Two-day Spartan obstacle event at Mahon Ranch near Elk Grove on Aug 29 to 30, 2026 featuring Sprint, Super, kids races and spectator access.
A mud obstacle event on August 29, 2026 at Richardson Adventure Farm offering 5K, 15K, timed Infinity laps, Mudder Village, and finisher rewards.
Weekend obstacle course races at Summit at Bechtel Reserve with Sprint 5 km, Super 10 km, Beast 21 km and kids races across rugged terrain and water features.