Northern Iowa upsets Iowa State, 28–20
Northern Iowa closed as a 5.5-point underdog and won outright.
Final28–20
Upset size5.5
Rank in 2013100th of 164
It was the 10th-biggest of 16 upsets in 2013 Week 1, and the 100th-biggest of the 2013 season. It was Northern Iowa's only upset win of 2013.
Other upsets in 2013 Week 1
Southern Utah 22, 
South Alabama 21Upset size41
Eastern Washington 49, 
No. 25 Oregon State 46Upset size28.5
McNeese 53, 
South Florida 21Upset size20.5
Towson 33, 
UConn 18Upset size20
Eastern Illinois 40, 
San Diego State 19Upset size19
More: Northern Iowa upsets · Iowa State upsets · all Week 1 upsets · the 2013 season · how upset size works