United States
- Alabama 1
- Alaska 1
- Arizona 3
- Arkansas 1
- California 21
- Colorado 5
- Connecticut 1
- Delaware
- District of Columbia
- Florida 13
- Georgia 8
- Hawaii 3
- Idaho 3
- Illinois 7
- Indiana 5
- Iowa 3
- Kansas 2
- Kentucky 4
- Louisiana
- Maine 1
- Maryland 1
- Massachusetts 4
- Michigan 7
- Minnesota 2
- Mississippi 1
- Missouri 4
- Montana 1
- Nebraska 1
- Nevada 1
- New Hampshire 2
- New Jersey 4
- New Mexico
- New York 7
- North Carolina 12
- North Dakota
- Ohio 7
- Oklahoma 3
- Oregon 4
- Pennsylvania 8
- Puerto Rico
- Rhode Island 2
- South Carolina 2
- South Dakota
- Tennessee 5
- Texas 12
- Utah 5
- Vermont 4
- Virginia 4
- Washington 3
- West Virginia 2
- Wisconsin 2
- Wyoming
Obstacle Race Calendar United States 2026-2027
Monthly updates for United States
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Explore the best obstacle runs in the United States for 2026-2027! Our updated list features 190 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
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.
Women only 5K obstacle mud run at Pop's Landing in Glencoe, KY with 18 plus obstacles, open to ages 7 and up and focused on teamwork and shared experience.
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 at North Carolina Motorsports Park on August 23, 2026, featuring 18+ obstacles and open to ages 7 and up.
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.
NorCal Spartan Event Weekend at Mahon Ranch features a Super 10K, a Sprint 5K, kids races across two days, and spectator access in Elk Grove, California.
A mud obstacle event on August 29, 2026 at Richardson Adventure Farm offering 5K, 15K, timed Infinity laps, Mudder Village, and finisher rewards.
Two-day Spartan obstacle weekend at Summit at Bechtel Reserve with Sprint, Super, Beast, kids races, plus an obstacle workshop and spectator access.
A muddy 3 mile obstacle run at Phil Moore Park on August 29, 2026, with 20 or more obstacles and a free kids play area.
Join this summer event at Magnuson Park in Seattle featuring traditional road races and an obstacle dash. Choose from distances ranging from a kids 400m to a 15k run in a beautiful Pacific Northwest setting.
Muddy Dash Mechanicsville on Aug 29, 2026 is a family-friendly 5K mud run with obstacles, mud pits, a pre-party and an after-party at Budds Creek Motocross Park.
A community mud run at Lewiston Community Park featuring multiple obstacles, a Mini-Mudder kids course, and sustained local fundraising and volunteer support.