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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California20
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Colorado4
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Connecticut2
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Delaware
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District of Columbia1
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Florida22
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Georgia7
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Hawaii2
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Idaho2
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Illinois8
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Indiana10
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Iowa2
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Kansas4
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Kentucky4
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Louisiana
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Maine4
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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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Nevada4
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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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Ohio7
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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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Tennessee5
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Texas19
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Utah5
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Vermont5
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Virginia7
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Washington5
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West Virginia2
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Wisconsin1
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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 211 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
Tough Mudder Indiana on August 1 at CERAland Park in Columbus invites runners to tackle muddy woodland trails, open farmland and classic obstacles like Arctic Enema and Electric Eel. Expect finisher swag, Mudder Village and festival vibes.
A weekend of obstacle-course racing at Tryon International Equestrian Center on August 1 and 2, 2026, featuring sprint, super and kids distances across horse trails, clay hills and creek beds, with spectator access and ticketed entry.
Push your limits at the 2026 Indiana Spartan Hurricane Heat Weekend in Columbus, IN on Aug 1, 2026. Choose a gritty 12 hour or intense 4 hour team challenge alongside Tough Mudder, with tickets starting at $125 for 12 hour and $75 for 4 hour.
Tackle the Gauntlet Mud Run at Chenoweth Trails in Greenville OH, a gritty 5K of mud, walls, ropes and military inspired obstacles. Bring the kids for a separate race and enjoy an event that benefits the Light Foundation.
Join the Boise Spartan Trifecta Weekend on Aug 8 and 9 at Tom Pence Ranch in Payette, Idaho, where high desert trails deliver steep dusty climbs. Sprint, Super, Beast or kids races and a 4 hour Hurricane Heat offer mud, grit and teamwork.
Get muddy with family at the Ohana Mud Run in Morganton on August 8, 2026. This one mile course packs 16 playful obstacles, giant sprinklers and a lazy river for a fun, well organized day that often sells out.
Cancelled: Ruck for the Fallen 2026 was planned as a 10k ruck at Pineland Farms with The Crucible obstacle course and pack challenges to honor post 9/11 fallen service members. Teams and solo entries were expected.
An obstacle race at Lost Lake Entertainment Complex featuring about three miles of mud, ropes, walls, and 15+ obstacles, plus a kids Mini Monkey Run and a festival area with food and music.
Push your limits at TRYROX 3QuarterRox, a HYROX style race blending repeated 750 m runs with eight strength stations in Overland Park on Aug 8 and 9. Compete solo or in doubles and chase series standings with a shot at cash prizes.
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.
Take on the Face the Forest 5K at Thomas Jefferson's Poplar Forest in Lynchburg VA on August 15, 2026. This muddy 3.1 mile obstacle course offers competitive and casual waves, and proceeds support Poplar Forest educational programs.
A 5k mud run in Oak Harbor with more than 20 obstacles and two difficulty options per obstacle. Medals are awarded to all participants and 10% of proceeds go to Ronald McDonald House Charities.
Conquer scenic trails, cold river crossings and Spartan obstacles at the 2026 NorCal Spartan Weekend, Aug 29 to 30 at Mahon Ranch in Elk Grove. Choose Sprint, Super or Kids races, join as a team or volunteer for a weekend of muddy fun.
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.
A weekend of Spartan obstacle races at Summit Bechtel Reserve on Aug 29 and 30, 2026 features Sprint, Super, Beast and kids distances across steep terrain with water features and a suspension bridge. Team entries and service member discounts are offe..