2012 BYU Basketball Team
Photo from Vanquish the Foe
They didn't have Jimmer, but the BYU Cougars didn't need him to pull off one of the most thrilling victories in NCAA tournament history. In the first round of the tournament, the Cougars and the Iona Gaels were fighting for the 14th seed—it didn't exactly have the makings of a March classic. When the Gaels took an astonishing 25-point lead in the first half, BYU fans began dejectedly filing out of the stadium. They must have been surprised to read the papers the next morning. BYU ended up winning the game 78-72. The Cougars' 25-point turnaround remains the largest comeback in March Madness history.