United States
- Alabama 1
- Alaska 1
- Arizona 2
- Arkansas 1
- California 20
- Colorado 5
- Connecticut 1
- Delaware
- District of Columbia
- Florida 13
- Georgia 6
- Hawaii 3
- Idaho 4
- Illinois 10
- Indiana 7
- Iowa 3
- Kansas 1
- Kentucky 5
- Louisiana
- Maine 4
- Maryland 1
- Massachusetts 4
- Michigan 10
- Minnesota 2
- Mississippi 1
- Missouri 3
- Montana 1
- Nebraska
- Nevada 1
- New Hampshire 3
- New Jersey 6
- New Mexico
- New York 8
- North Carolina 14
- North Dakota
- Ohio 11
- Oklahoma 3
- Oregon 6
- Pennsylvania 9
- Puerto Rico
- Rhode Island 2
- South Carolina 4
- South Dakota
- Tennessee 4
- Texas 14
- Utah 5
- Vermont 4
- Virginia 9
- Washington 6
- 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 221 exciting races across the country. Find your next race in the United States below and join the running community at these great events!
June 2026
Muddy Princess Boston is a women-focused 5K obstacle mud run at Kimball Farm in Haverhill, MA on June 21, 2026. The event features muddy obstacles, hydration and rinse stations, participant items and a partnership with the National Breast Cancer Foun..
A multi-day running and wellness camp at Stable View in Aiken, SC with trail runs, coaching and nutrition workshops, yoga, a self-defense session, chef-prepared meals, and on-site single or shared accommodations.
A 72-hour endurance race in Pittsfield Vermont on June 26-28 2026 combining physical obstacles, navigation, and mental challenges. Tickets for the Death Race require a promo code issued after acceptance by the race director.
A three-stage Hurricane Heat endurance event at Riverside Farm on June 26-27, 2026, offering 4, 12, and 24 hour tiers that together form a full 24-hour challenge; entry is 18+ with 40+ challenges and team registration options.
Tough Mudder Twin Cities on June 27, 2026 in Hugo, Minnesota offers 5K and 15K obstacle courses, an Infinity multiple laps option, spectator access, and finisher items including a 2026 medal, shirt, headband, and a finisher drink.
A 24 hour endurance event in Pittsfield, Vermont on June 27 to 28, 2026. Runners repeat a two mile loop with 970 feet of elevation gain as they compete for most laps or aim to last the full 24 hours.
A mission-oriented obstacle course weekend in Southern Ohio on June 27-28, 2026 featuring a 1.5-mile Battle Challenge with a live fire range, a 3k speed OCR, large water slides, mud rig obstacles and championship-level course elements.
An obstacle course backyard ultra where athletes run an approximately 3 miles loop every hour until one remains. Solo and relay formats are available, with a 50 mile solo option and team relays for groups of three to six.
A mud-run fundraiser in King George, VA on June 27, 2026, featuring a 4-mile obstacle course and a 1-mile kids run, organized by the Dahlgren Lions Club with team awards by group size.
Operation HAYSTACK is a half marathon in Nederland, Colorado on June 27, 2026. The course covers 13.1 miles with 4,226 ft of elevation gain and the listed entry price is $105 plus tax.
A ruck style trail event at Crystal Mountain Resort on June 27, 2026, offering three distances with a 20 lb dry load and elevation gains listed up to 5,629 ft.
A 10 miles out-and-back event at Smith Mountain Cooperative Wildlife Management Area in Sandy Level, Virginia on June 27, 2026. Three load options are available: LIGHT 10 pounds, STANDARD 25 pounds, and HEAVY 50 pounds.
A weekend of Spartan obstacle races at Carter and Stevens Farm in Barre MA featuring a 5 km Sprint with 20 obstacles and a 10 km Super with 25 obstacles. The program also includes a kids race and an obstacle workshop.
Mud Factor Eugene is a mud-based 5K obstacle run at Eugene MX Park in Junction City on June 27, 2026. The event includes Kidz Family and Adult waves, a festival area with a spectator fee, and required signed waivers.
Team-based charity challenge in Bristol, NH on June 27, 2026 where teams of 6 to 12 complete Special Forces style stations at Recruit or Operator levels while fundraising supports veterans and first responders.
A first ever mud obstacle course in Adrian City Park on June 27 as part of the 250th Independence Day celebration, titled 5K with a listed distance of 3 miles, featuring mud, fitness challenges, and awards for the top three finishers.
A family-friendly 5K mud run on June 27, 2026 at Indian Hill Ranch featuring mud pits, obstacles, a Pre-Party and an After-Party, with Value and VIP registration options.
Muddy Princess Maine is a 5K obstacle mud run at Hemond's MX & Offroad Park in Minot, ME on June 28, 2026. The event supports the National Breast Cancer Foundation and includes medals, digital photos, hydration and rinse stations.
Mud Factor stages a 5K obstacle run at Wooden Shoe Tulip Farm in Woodburn, OR on June 28, 2026, with KIDZ Family waves, on-site photo sales, and specific entry rules including a signed waiver and photo ID for adults.
July 2026
BeastLake in Moneta VA on July 4 offers a 3.1 mile obstacle course with 16 obstacles, a 3.1 mile run or walk, and a 1.5 mile family obstacle course with optional water features and food trucks.