Nick Walker is undoubtedly one of the most prominent bodybuilders in the pro bodybuilding circuit. He turned pro at the 2020 NPC North American Championships and earned a fourth-place finish one month later at the 2020 Chicago Pro . Walker stunned bodybuilding fans by winning his second pro show — the 2021 New York Pro and earning qualification for his first Mr. Olympia . By winning the 2021 Arnold Classic and finishing a respectable fifth at the 2021 Mr. O , “The Mutant” proved his 2021 NY Pro win was not a fluke.