Schwarzenegger defeated Oliva at the 1970 Mr. Olympia after finishing second the year before. At around 6 ft 1" and 235 lbs, he was able to match Sergio Oliva for size in his upper arms, chest and back. However, contest judges deemed that Schwarzenegger's extra definition and muscularity over Sergio Oliva were substantial enough to award him the title. Schwarzenegger successfully defended his title against Oliva in 1972, after which Oliva retired from the IFBB. Schwarzenegger went on to win the next three Mr. Olympia competitions, including the 1975 Mr. Olympia competition, which was highlighted in the 1977 docudrama Pumping Iron and featured other notable bodybuilders such as Lou Ferrigno, Serge Nubret, and Franco Columbu, who would go on to win the 1976 competition. Up until that point the taller competitors won but Columbu, who stands around 5'2" (≈1.63m), won by showcasing a combination of mass and hardness that had never been seen before. -Wiki-
