Colorado edges No. 21 West Virginia, 17–14
It was unranked Colorado taking down the No. 21 team in the AP poll.
Final17–14
Upset size2.5
Rank in 200846th of 70
It was the 3rd-biggest of 3 upsets in 2008 Week 4, and the 46th-biggest of the 2008 season. It was Colorado's only upset win of 2008.
Other upsets in 2008 Week 4
NC State 30, 
No. 15 East Carolina 24Upset size5.5
Boise State 37, 
No. 17 Oregon 32Upset size4.5
More: Colorado upsets · West Virginia upsets · all Week 4 upsets · the 2008 season · how upset size works