Navy edges No. 19 Notre Dame, 23–21
It was unranked Navy taking down the No. 19 team in the AP poll.
Final23–21
Upset size3.5
Rank in 200938th of 64
It was the 3rd-biggest of 6 upsets in 2009 Week 10, and the 38th-biggest of the 2009 season. It was Navy's only upset win of 2009.
Other upsets in 2009 Week 10
Stanford 51, 
No. 7 Oregon 42Upset size9.5
Northwestern 17, 
No. 8 Iowa 10Upset size9
Nebraska 10, 
No. 20 Oklahoma 3Upset size3- Upset size2
Oregon State 31, 
No. 23 California 14Upset size1.5
More: Navy upsets · Notre Dame upsets · all Week 10 upsets · the 2009 season · how upset size works