No. 16 Washington upsets No. 7 Washington State, 28–15
Washington closed as a 3-point underdog and won outright. No. 16 beat No. 7 in the AP poll.
Final28–15
Upset size7.5
Rank in 201885th of 181
It was the 10th-biggest of 18 upsets in 2018 Week 13, and the 85th-biggest of the 2018 season. It was Washington's only upset win of 2018.
Other upsets in 2018 Week 13
Hawai'i 31, 
San Diego State 30Upset size17.5
Charlotte 27, 
Florida Atlantic 24Upset size17- Upset size14
- Upset size12.5
Western Kentucky 30, 
Louisiana Tech 15Upset size10.5
More: Washington upsets · Washington State upsets · all Week 13 upsets · the 2018 season · how upset size works