United States
- Alabama 2
- Alaska 1
- Arizona 3
- Arkansas 2
- California 22
- Colorado 4
- Connecticut 1
- Delaware
- District of Columbia
- Florida 13
- Georgia 9
- Hawaii 3
- Idaho 3
- Illinois 7
- Indiana 6
- Iowa 3
- Kansas 2
- Kentucky 5
- Louisiana
- Maine 2
- Maryland 1
- Massachusetts 4
- Michigan 6
- Minnesota 2
- Mississippi 1
- Missouri 4
- Montana 1
- Nebraska 1
- Nevada 1
- New Hampshire 2
- New Jersey 3
- New Mexico
- New York 7
- North Carolina 11
- North Dakota
- Ohio 7
- Oklahoma 4
- Oregon 5
- Pennsylvania 8
- Puerto Rico
- Rhode Island 2
- South Carolina 2
- South Dakota
- Tennessee 4
- Texas 12
- Utah 5
- Vermont 4
- Virginia 3
- Washington 3
- West Virginia 2
- Wisconsin 2
- Wyoming 1
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 194 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
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.
Tough Mudder Chicago on August 29, 2026 at Richardson Adventure Farm offers 5K, 15K and an 8 hour Infinity course with multiple obstacles and a Mudder Village.
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.
Summer Spirit Run at Magnuson Park on August 29 offers 5k, 10k and 15k options plus a Kids Dash and an Obstacle Dash with eight obstacles.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
A 5K mud run at Budds Creek Motocross Park with obstacles, mud pits, a pre-party, and an after-party featuring music, food, and drinks.
A community mud run at Lewiston Community Park featuring multiple obstacles, a Mini-Mudder kids course, and sustained local fundraising and volunteer support.
Spartan Stadion at Citizens Bank Park on Aug 29, 2026 features a mud free 5 km course with 20 obstacles, a kids race, and spectator access.
A fundraising obstacle event at Lexington High School featuring a two-loop 5K with repeated obstacles and a 1 mile fun run with slip n' slide elements. Proceeds support the Lexington Cross Country team and registrants receive a race shirt.
A mud run held with the Apache County Fair in Saint Johns, AZ on August 29 2026, featuring competitive and family races. Pre registration is $15 per person until August 26 with day entries at $20 and a 20% team discount.
A women only 5K obstacle mud run in Charlotte on August 30, 2026 with 18+ obstacles, entries from age 7 and a partnership with the National Breast Cancer Foundation.
September 2026
Test your limits at Decker Farm with a grueling combination of military boot camp and farm chores. Choose between 4, 12, or 36 hour endurance challenges featuring heavy carries and undisclosed physical tasks.
A family friendly 5K mud run at Switchback MX on Sep 5, 2026 with obstacles, mud pits, pre and after parties, packet pickup, and spectator access.
An obstacle and mud-focused 5K at Golden Spike Event Center in Salt Lake City on September 5, 2026, featuring mud pits, walls, ropes, and a festival village.
A load bearing endurance event at Staunton State Park on September 5, 2026. Routes range from 6.5 to 21.5 miles with loads from 10 to 40 lb and proceeds benefit the Special Forces Foundation.
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 family friendly, obstacle filled beach 5k in Stratford that raises funds for Sterling Community Center while supporting individual and team fundraising.
A four-mile obstacle course race in Tulsa on September 12, 2026, featuring more than 25 obstacles, a kids course, and group registration options.
Muddy Dash Detroit on September 12, 2026 is a 5K mud run at Milan MX with obstacles, mud pits, music, food trucks and family-friendly options.