United States
- Alabama 1
- Alaska 1
- Arizona 3
- Arkansas 1
- California 20
- Colorado 4
- Connecticut 1
- Delaware
- District of Columbia
- Florida 13
- Georgia 8
- Hawaii 2
- Idaho 3
- Illinois 5
- 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 3
- New Mexico
- New York 8
- North Carolina 13
- North Dakota
- Ohio 7
- Oklahoma 3
- Oregon 5
- Pennsylvania 9
- Puerto Rico
- Rhode Island 2
- South Carolina 2
- South Dakota
- Tennessee 5
- Texas 11
- Utah 5
- Vermont 4
- Virginia 3
- 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 185 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
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.
Monthly updates for United States
Get new running races (and updates) in your inbox every month.
Two obstacle events at Zelienople Community Park on August 23, 2026: a ninja style course with 10 challenges and a 1.2 to 1.5 mile looped obstacle race.
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.
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.
Muddy Dash at Switchback MX in Pittsburgh on Sep 5, 2026 is a family-friendly 5K mud run with obstacles, mud pits, a pre-party, and a post-race festival with music and food.
An obstacle and mud-focused 5K at Golden Spike Event Center on Sep 5, 2026 with festival activities, packet pickup, and Value and VIP registration options.