I won't mention any names for face-saving purposes...
I met a guy in his late 20s at a Purdue/Michigan dual meet a few years ago. I came to find out he was a 3-time state champion from whatever state he was from (It's slipping my mind at the moment). He also wrestled at Purdue for a few years.
As a high schooler, in I believe he said his junior year, he finished the season 31-1 and a state champion. His one loss is the compelling factor...
He received a forfeit in your typical garden-variety weekend super dual. As he was walking out onto the mat, he tripped over the edge of it. After he stumbled a few times, he landed on his back and did a handspring to come to his feet. The ref, who knew the wrestler was very good and looked as surprised as anyone, blew his whistle and slapped the mat. The ref then went over to the official scorer and informed the scorer that the forfeiting team would get credit for a six-point victory. The wrestler's coaches instantly became irate and referenced a rules book.
The ref called a touch fall for the wrestlers shoulders being on the mat. The coaches tried to argue that since there was no opponent, there could be no touch fall. The guy (upon talking to him years later) said that the ref was right in making this call, though trying to explain to his father (who was absent from that meet) why he lost was quite difficult!