22. Boise State vs. Oklahoma (2007)
The Sooners were favorites against Boise State in the ’07 Fiesta Bowl, but it wasn’t a total mismatch. However, Boise still pulled off one of the craziest upsets ever after with a storybook ending. The Broncos received a lot of patronizing attention in the build-up to the game against their Big 12 opponents (via Idaho Statesman).
But the WAC champions showed their quality in a brilliant game. They quickly put it on their highly-vaunted opponents and took the lead. The Sooners came storming back in the fourth quarter before the Broncos desperately sent the game to overtime. Then there was an epic finish as Boise won the Bowl.