Back when my favorite, Devon, was in just about in his prime before elbow surgeries and he was ranked #1 in the world. He stonewalled Lupkes who was a monster in the 90s. He's older here, but most armwrestlers seem to peak in there 40s as by then their tendons have become titanium which is where most of their power come from. Lupkes can be stronger, but Devon has way more technique and stamina than anybody in the sport then and now.