Yes, he had losses wrestling in tournaments unattached. I don't remember the exact number. He was not unbeatable, just a rare wrestler in style and capability for his size. He wrestled like a 133 at 184 and 197. The other wrestlers just looked so flat footed in comparison. Trenge pinned his way to the finals in Sanderson's final run(Trenge won the following year I believe) and Cael majored the poor guy. Trenge just couldn't keep Sanderson away from the legs.
