Michigan edges No. 22 BYU, 31–0

It was unranked Michigan taking down the No. 22 team in the AP poll.

It was the 8th-biggest of 9 upsets in 2015 Week 4, and the 152nd-biggest of the 2015 season. Michigan pulled off 1 other upset in 2015.

Other upsets in 2015 Week 4

1. No. 18 Utah 62, No. 13 Oregon 20

   14-point underdogNo. 18 beat No. 13Recap
   Upset size16.5
2. James Madison 48, SMU 45

   14.5-point underdogFCS beat FBSRecap
   Upset size14.5
3. Duke 34, No. 20 Georgia Tech 20

   10-point underdogUnranked beat No. 20Recap
   Upset size13
4. Akron 35, Louisiana 14

   7.5-point underdogRecap
   Upset size7.5
5. East Carolina 35, Virginia Tech 28

   6-point underdogRecap
   Upset size6

Michigan’s other 2015 upsets

1. No. 18 Michigan 38, No. 13 Northwestern 0

   Week 6No. 18 beat No. 13Recap
   Upset size2.5

More: Michigan upsets · BYU upsets · all Week 4 upsets · the 2015 season · how upset size works