sentences:  Lou Thez was the first UWA World Heavyweight champion, having been awarded the title after wrestling Mil Mascaras to a draw on the very first UWA show.El Canek has held the Championship the most times, 15 reigns all in all, 13 of those before the UWA closed.Canek is also the champion that kept the UWA World Heavyweight Championship active after the UWA closed.