2003 · Week 13 · 5 upsets
West Virginia upsets No. 16 Pittsburgh, 52–31
It was unranked West Virginia taking down the No. 16 team in the AP poll.
All 2003 Week 13 upsets, biggest first
Upset size is the points the winner overcame on the closing line plus a bonus for beating a ranked team. How it’s scored
West Virginia 52, 
No. 16 Pittsburgh 31Upset size5
Kansas State 38, 
No. 18 Nebraska 9Upset size4
Wisconsin 56, 
No. 21 Michigan State 21Upset size2.5
Toledo 49, 
No. 21 Northern Illinois 30Upset size2.5
No. 20 Iowa 40, 
No. 19 Minnesota 22Upset size0.5