AP upset archive
Biggest College Football Upsets of 2003
The season's 25 strongest AP-defined upsets, led by the quality of the ranked team defeated and the game-time ranking gap.
25
Upsets ranked
15
Unranked winners
0
Market-confirmed
Top 25 AP upsets
- Historic upsetWeek 6Home
Unranked California 34, No. 3 USC 31
AP evidence · primary
Opponent strength 46/50 · Rank gap 46/50
Market evidence · supporting
No betting line · Pregame win chance —
92
AP score
- Historic upsetWeek 10Home
Unranked West Virginia 28, No. 3 Virginia Tech 7
AP evidence · primary
Opponent strength 46/50 · Rank gap 46/50
Market evidence · supporting
No betting line · Pregame win chance —
92
AP score
- Historic upsetWeek 12Home
Unranked Clemson 26, No. 3 Florida State 10
AP evidence · primary
Opponent strength 46/50 · Rank gap 46/50
Market evidence · supporting
No betting line · Pregame win chance —
92
AP score
- Historic upsetWeek 8Home
No. 23 Wisconsin 17, No. 3 Ohio State 10
AP evidence · primary
Opponent strength 46/50 · Rank gap 40/50
Market evidence · supporting
No betting line · Pregame win chance —
86
AP score
- Historic upsetWeek 5Home
No. 22 Oregon 31, No. 3 Michigan 27
AP evidence · primary
Opponent strength 46/50 · Rank gap 38/50
Market evidence · supporting
No betting line · Pregame win chance —
84
AP score
- Historic upsetWeek 11Home
No. 23 Florida 16, No. 4 Georgia 13
AP evidence · primary
Opponent strength 44/50 · Rank gap 38/50
Market evidence · supporting
No betting line · Pregame win chance —
82
AP score
- Historic upsetWeek 12Home
No. 25 Pittsburgh 31, No. 5 Virginia Tech 28
AP evidence · primary
Opponent strength 42/50 · Rank gap 40/50
Market evidence · supporting
No betting line · Pregame win chance —
82
AP score
- Historic upsetWeek 4Road
Unranked Arkansas 38, No. 6 Texas 28
AP evidence · primary
Opponent strength 40/50 · Rank gap 40/50
Market evidence · supporting
No betting line · Pregame win chance —
80
AP score
- Historic upsetWeek 5Road
Unranked Marshall 27, No. 6 Kansas State 20
AP evidence · primary
Opponent strength 40/50 · Rank gap 40/50
Market evidence · supporting
No betting line · Pregame win chance —
80
AP score
- Historic upsetWeek 8Road
Unranked Florida 19, No. 6 LSU 7
AP evidence · primary
Opponent strength 40/50 · Rank gap 40/50
Market evidence · supporting
No betting line · Pregame win chance —
80
AP score
- Historic upsetWeek 7Home
Unranked Auburn 28, No. 7 Tennessee 21
AP evidence · primary
Opponent strength 38/50 · Rank gap 38/50
Market evidence · supporting
No betting line · Pregame win chance —
76
AP score
- Historic upsetWeek 8Road
Unranked Auburn 10, No. 7 Arkansas 3
AP evidence · primary
Opponent strength 38/50 · Rank gap 38/50
Market evidence · supporting
No betting line · Pregame win chance —
76
AP score
- Historic upsetCHICK-FIL-A PEACH BOWLHome
Unranked Clemson 27, No. 7 Tennessee 14
AP evidence · primary
Opponent strength 38/50 · Rank gap 38/50
Market evidence · supporting
No betting line · Pregame win chance —
76
AP score
- Major upsetWeek 16Road
No. 13 Kansas State 35, No. 1 Oklahoma 7
AP evidence · primary
Opponent strength 50/50 · Rank gap 24/50
Market evidence · supporting
No betting line · Pregame win chance —
74
AP score
Full Game · 2003 Oklahoma vs. Kansas State (Big 12 Championship Game Full Game)
- Major upsetWeek 14Home
Unranked Washington 27, No. 8 Washington State 19
AP evidence · primary
Opponent strength 36/50 · Rank gap 36/50
Market evidence · supporting
No betting line · Pregame win chance —
72
AP score
- Major upsetWeek 5Home
Unranked Toledo 35, No. 9 Pittsburgh 31
AP evidence · primary
Opponent strength 34/50 · Rank gap 34/50
Market evidence · supporting
No betting line · Pregame win chance —
68
AP score
- Major upsetWeek 11Home
No. 10 Virginia Tech 31, No. 2 Miami 7
AP evidence · primary
Opponent strength 48/50 · Rank gap 16/50
Market evidence · supporting
No betting line · Pregame win chance —
64
AP score
- Major upsetWeek 12Road
No. 18 Tennessee 10, No. 6 Miami 6
AP evidence · primary
Opponent strength 40/50 · Rank gap 24/50
Market evidence · supporting
No betting line · Pregame win chance —
64
AP score
- Major upsetWeek 8Home
Unranked Missouri 41, No. 10 Nebraska 24
AP evidence · primary
Opponent strength 32/50 · Rank gap 32/50
Market evidence · supporting
No betting line · Pregame win chance —
64
AP score
- Major upsetWeek 14Home
Unranked Southern Miss 40, No. 10 TCU 28
AP evidence · primary
Opponent strength 32/50 · Rank gap 32/50
Market evidence · supporting
No betting line · Pregame win chance —
64
AP score
- Major upsetWeek 7Home
No. 23 Iowa 30, No. 9 Michigan 27
AP evidence · primary
Opponent strength 34/50 · Rank gap 28/50
Market evidence · supporting
No betting line · Pregame win chance —
62
AP score
- Major upsetWeek 9Road
Unranked Florida 33, No. 11 Arkansas 28
AP evidence · primary
Opponent strength 30/50 · Rank gap 30/50
Market evidence · supporting
No betting line · Pregame win chance —
60
AP score
- Major upsetPostseasonHome
No. 15 Washington State 28, No. 6 Texas 20
AP evidence · primary
Opponent strength 40/50 · Rank gap 18/50
Market evidence · supporting
No betting line · Pregame win chance —
58
AP score
- Major upsetWeek 14Road
Unranked Boston College 34, No. 12 Virginia Tech 27
AP evidence · primary
Opponent strength 28/50 · Rank gap 28/50
Market evidence · supporting
No betting line · Pregame win chance —
56
AP score
- Major upsetNOKIA SUGAR BOWLHome
No. 3 LSU 21, No. 1 Oklahoma 14
AP evidence · primary
Opponent strength 50/50 · Rank gap 4/50
Market evidence · supporting
No betting line · Pregame win chance —
54
AP score
Full Game · 2003 LSU vs. Oklahoma (Bowl Full Game)
How the ranking works
An upset qualifies only when the winner was unranked or ranked below an AP Top 25 opponent at kickoff. Regular-season games use that game's AP poll week; postseason games use the last regular-season AP poll before bowl and playoff results. The 100-point score splits evenly between defeated-opponent strength and ranking gap. Betting lines and pregame win probability are shown separately as supporting evidence and never change the AP score, so missing market data cannot lower a game.