EARLY HISTORY
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 Modern Pentathlon: fencing, swimming, show jumping, pistol shooting, track run.
1946 Military Pentathlon Obstacle Run: 500 m + 20 obstacles.
MODERN HISTORY
1980 NZ Alpine Ironman (now coast-to-coast).
1982 WildTrek Australia.
1987 Tough Guy( UK): 12 km + 25 obstacles.
1989 Raid Gauloises.
1995 Eco-Challenge.
1996 HiTec Adventure Race.
1996 Cross-Fit (CrossFit since 2000), functional fitness.
1997 Sasuke, originally Japan, now 126 countries.
1999 Muddy Buddy (US), run, bike, several obstacles.
2007 CrossFit Games.
2009 American Ninja Warrior (Sasuke): 50 – 100m, obstacle competition.
2010 Spartan Race: 5 – 50+ km, 20+ obstacles including running, jumping, climbing, crawling, javelin throwing, carrying (closest to Ancient Pentathlon).
2010 Tough Mudder (competitive since 2017).