Houston stuns No. 5 Oklahoma State, 45–35
It was unranked Houston taking down the No. 5 team in the AP poll.
Final45–35
Upset size10.5
Rank in 20093rd of 64
It was the biggest of 2 upsets in 2009 Week 2, and the 3rd-biggest of the 2009 season. It was Houston's only upset win of 2009.
Other upsets in 2009 Week 2
Michigan 38, 
No. 18 Notre Dame 34Upset size4
More: Houston upsets · Oklahoma State upsets · all Week 2 upsets · the 2009 season · how upset size works