Since I have followed Ohio State Football I count 39 losses as being devastating. Losses that cost us Rose Bowl berths, BCS or CFP spots, or National Championships. Or were just personally brutal to take.

Michigan-9

Michigan St-5

USC-4

Clemson, PSU, Wisconsin-3

Purdue, Oklahoma, Texas, UCLA-2

Florida, Iowa, LSU, Stanford-1

I have a feeling a lot of you at least at 50+, but I've forgotten how mad I was after some of the other losses.