United States
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Alabama1
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Alaska
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Arizona3
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Arkansas2
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California21
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Colorado4
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Connecticut2
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Delaware
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District of Columbia
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Florida23
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Georgia7
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Hawaii1
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Idaho2
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Illinois7
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Indiana11
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Iowa2
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Kansas
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Kentucky4
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Louisiana
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Maine3
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Maryland3
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Massachusetts3
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Michigan4
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Minnesota1
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Mississippi
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Missouri4
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Montana1
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Nebraska
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Nevada3
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New Hampshire
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New Jersey5
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New Mexico
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New York7
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North Carolina13
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North Dakota
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Ohio6
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Oklahoma3
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Oregon1
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Pennsylvania4
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Puerto Rico
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Rhode Island1
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South Carolina4
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South Dakota
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Tennessee4
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Texas16
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Utah5
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Vermont7
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Virginia7
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Washington3
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West Virginia2
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Wisconsin1
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Wyoming
Obstacle Race Calendar United States 2025-2026
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 2025-2026! Our updated list features 200 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
Tackle ocean swims, sandy obstacles and beach runs at the Wildwood Navy Seal Challenge in Wildwood NJ on August 9, 2026. Race solo, with a four person team or join the kids and land run options for a fun, salty challenge.
Run scenic, rugged courses at Dillingham Ranch on Oahu's North Shore where mountains meet the ocean. Sprint, Super, Beast and Ultra distances plus a kids race make this a weekend of unforgettable obstacles.
Embrace your inner Highlander at the Highlander Assault obstacle race in McHenry Illinois on August 15 2026, featuring 5k, 15k and a 3k Family Frenzy with rugged obstacles and themed Scottish fun. Finishers earn a medal and shirt.
Run a muddy 5K at Village Creek Motocross Park Fort Worth with walls, ropes, monkey bars and 15 plus obstacles, then enjoy food, music and sponsor booths. Family friendly Mini Monkey for kids and spectator entry is free.
Dive into the Muddy Dash on August 15, 2026 at DREAM Park near Philadelphia for a playful obstacle run through mud pits, foam fun, and a lively post race party. Choose Value for a finisher medal and party access or go VIP for extra swag and perks.
Get muddy at the Black Swamp Mud Run, a 5k in Oak Harbor on August 22, 2026 featuring more than 20 obstacles with challenge and Xtreme options for every ability. Every finisher earns a medal and proceeds support Ronald McDonald House Charities.
Join the NorCal Spartan Weekend on Aug 29 and 30, 2026 at Mahon Ranch in Elk Grove for rugged trails, cold river crossings and Spartan style obstacles across multiple distances. Team entries and first responder discounts available.
Tough Mudder Chicago on Aug 29, 2026 brings muddy obstacle course fun to Rockford Airport with fan favorites like Berlin Walls and Arctic Enema. Chill in Mudder Village with food, live music and finisher swag after the 5K, 15K or Infinity.
Tackle mud, obstacles, and steep trails at Summit Bechtel Reserve during Spartan Trifecta Weekend, Aug 29 to 30 2026. Pick Sprint Super or Beast plus kids races and enjoy white water rafting and valley views from a suspension bridge.
Get ready to get muddy at One Bad Mud Run, a 3 mile obstacle course through woods and creek at Phil Moore Park on Aug 29, 2026. Open to ages 10 and up with a free kids area, the course has at least 20 obstacles and a wash off station.
Get muddy at Muddy Dash Maryland on August 29, 2026 at Budds Creek Motocross Park with an up to 3 mile obstacle course full of mud pits and surprises. Run, walk, crawl and join the post race party with VIP perks available.
September 2026
Test your limits at The Ultimate SUCK, an on farm endurance challenge in rural Illinois with 36 hour, 12 hour and 4 hour formats. Camp by the course, push through the night, and celebrate with a bonfire and breakfast.
Race sand and surf through more than 18 obstacles at the family friendly Sterling Down & Dirty 5K on Stratford Short Beach. Proceeds support Sterling Community Center programs, so bring friends, join a team and make a splash for a cause.
Get muddy at Muddy Dash in Pittsburgh on September 5 at Switchback MX, featuring on course mud pits and a lively post race festival with music and competitions. Upgrade to VIP for shirts, towels and a faster check in.
Get muddy and test your grit at Terrain Race in Ogden's Golden Spike Event Center on September 5, 2026. Tackle a 5K with 15+ obstacles or bring the kids for the Mini Monkey half mile, then enjoy food, music, and festival fun for all.
Take on The Gauntlet in Bixby near Tulsa on September 12, 2026, a rugged 4 mile obstacle course with more than 25 obstacles. Family friendly with a kids course and group pricing, perfect for teams and families.
Get muddy at the Fort Gordon Marine Mud Challenge on September 12, 2026. This 4 mile off road course features 30 plus obstacles, stream crossings, hills and plenty of mud for timed and competitive runners seeking a gritty, fun challenge.