AWA World Heavyweight Championship
In May 1960, while still the NWA World Heavyweight Champion, the American Wrestling Association (AWA) named O'Connor as the first holder of the AWA World Heavyweight Championship when they seceded from the NWA. Therefore, he held both the AWA and NWA World Heavyweight Championships simultaneously. However, he never defended the AWA World Heavyweight Championship, and was stripped of it in August, after ninety days, when Verne Gagne was recognized as the new champion.