Iowa upsets No. 13 Michigan, 24–16
It was unranked Iowa taking down the No. 13 team in the AP poll.
Final24–16
Upset size6.5
Rank in 201115th of 54
It was the 2nd-biggest of 4 upsets in 2011 Week 10, and the 15th-biggest of the 2011 season. It was Iowa's only upset win of 2011.
Other upsets in 2011 Week 10
Northwestern 28, 
No. 9 Nebraska 25Upset size8.5
UCLA 29, 
No. 20 Arizona State 28Upset size3
Louisville 38, 
No. 24 West Virginia 35Upset size1
More: Iowa upsets · Michigan upsets · all Week 10 upsets · the 2011 season · how upset size works