Oregon State stuns Colorado, 41–34
Oregon State closed as a 23.5-point underdog and won outright.
Final41–34
Upset size23.5
Rank in 20185th of 181
It was the biggest of 20 upsets in 2018 Week 9, and the 5th-biggest of the 2018 season. It was Oregon State's only upset win of 2018.
Other upsets in 2018 Week 9
California 12, 
No. 15 Washington 10Upset size17.5- Upset size13.5
Oklahoma State 38, 
No. 6 Texas 35Upset size12.5
Georgia Southern 34, 
No. 25 App State 14Upset size11.5
Arizona 44, 
No. 19 Oregon 15Upset size11.5
More: Oregon State upsets · Colorado upsets · all Week 9 upsets · the 2018 season · how upset size works