Netflix's Arnold sees Arnold Schwarzenegger reflecting on his bodybuilding career, but how many competitions did he actually win? Arnold's first episode finds Schwarzenegger recounting his childhood growing up in the town of Thal in Austria, and how seeing the fantasy epic Hercules And The Captive Women (AKA Hercules and the Conquest of Atlantis) as a teenager would change his life. This starred bodybuilder Reg Park, winner of several Mr. Universe titles, and the young Arnie would later find an American muscle magazine that revealed Park's fitness program.

https://screenrant.com/how-many-bodybuilding-competitions-did-arnold-schwarzenegger-win/