Unifying OCR to ensure an inclusive, safe, fair & affordable sport for all

USAOCR is a nonprofit organization, representing the interests of the sport through member representation and engagement



Modern History

1980 NZ Alpine Ironman (currently coast-to-coast)
​1982 Alaska Wilderness Classic
1982 WildTrek Australia
1984 Survival Run, Holland (inspired by the US television show Survival of the Fittest?)
1987 Tough Guy (UK): 12 km + 25 obstacles
1989 Raid Gauloises
1995 Eco-Challenge
1996 HiTec Adventure Race: 1-2 hours many obstacles
1997 Sasuke, originally Japan, now 126 countries
1999 Muddy Buddy (US), run, bike many obstacles

2007 Peak Races, including the Death Race, genesis for Spartan Race
2009 American Ninja Warrior (US version of Sasuke): 50 – 100 m, all obstacles
2010 Spartan Race including running, jumping, javelin, throwing, carrying (similar to Ancient Pentathlon)
2010 Tough Mudder (non competitive)

2011 World's Toughest Mudder (competitive), announced as a race series for 2017

2016 Spartan Ultimate Team Challenge, network television competition on NBC

2016 1st OCR European Championship

2017 First US National Championships (
Others: Atlas Race, Warrior Dash, Strong Viking, Bog Commander, Legion Run, MudGear, Suffering Race

Early History of OCR

708 BC Ancient Pentathlon: run, long jump, javelin, discus, wrestling
1040 Fell Running: 1.5-20 km, open terrain, many hills
1860 Steeple Chase: 3,000 m run + 28 barriers & 7 water jumps
1876 Cross Country Running: 4-12 km, open terrain
1912 5th Olympiad, Modern Pentathlon: fencing, swimming, show jumping, pistol shooting, track run
1946 Military Pentathlon Obstacle Run: 500 m + 20 obstacles​​

Steeplechase Race, Celtic Park, NY