Houston edges No. 21 South Florida, 57–36

It was unranked Houston taking down the No. 21 team in the AP poll.

It was the 20th-biggest of 20 upsets in 2018 Week 9, and the 174th-biggest of the 2018 season. It was Houston's only upset win of 2018.

Other upsets in 2018 Week 9

1. Oregon State 41, Colorado 34

   23.5-point underdogRecap
   Upset size23.5
2. California 12, No. 15 Washington 10

   12-point underdogUnranked beat No. 15Recap
   Upset size17.5
3. Kansas 27, TCU 26

   13.5-point underdogRecap
   Upset size13.5
4. Oklahoma State 38, No. 6 Texas 35

   Unranked beat No. 6Recap
   Upset size12.5
5. Georgia Southern 34, No. 25 App State 14

   11-point underdogUnranked beat No. 25Recap
   Upset size11.5

More: Houston upsets · South Florida upsets · all Week 9 upsets · the 2018 season · how upset size works