They are pretty stringent about what constitutes a clean wing.
Wing Bowl has one other rule. "You Heave, You Leave". Last year, a guy named Coondog O'Karma from Ohio was leading by two wings going into the home stretch. Then he lost it and El Wingador just kept on going. Coondog holds the record for dounts. I think its 25 in 3 and a half minutes, but I'm not sure.
This year Coondog O'Karma wasn't even in the top 5.
Check out some of them eating records.