Oklahoma State edges No. 22 Kansas State, 38–34
It was unranked Oklahoma State taking down the No. 22 team in the AP poll.
Final38–34
Upset size2
Rank in 200350th of 69
It was the 6th-biggest of 8 upsets in 2003 Week 8, and the 50th-biggest of the 2003 season. It was Oklahoma State's only upset win of 2003.
Other upsets in 2003 Week 8
No. 23 Wisconsin 17, 
No. 3 Ohio State 10Upset size10- Upset size10
Auburn 10, 
No. 7 Arkansas 3Upset size9.5
Missouri 41, 
No. 10 Nebraska 24Upset size8
Notre Dame 20, 
No. 15 Pittsburgh 14Upset size5.5
More: Oklahoma State upsets · Kansas State upsets · all Week 8 upsets · the 2003 season · how upset size works