Officials reviewed the shot and ruled it went in just in time, sending Mississippi State to the quarterfinals where it awaits the victor of Sunday night's Louisville-Middle Tennessee game.
Baylor responded by scoring the next seven points and then Mississippi State tied the game at 75-75 on a 3-pointer by Carter with 40 seconds left, setting it up for the dramatic final possessions. It will now face either Louisville or Middle Tennessee State on the road in the third round of the NIT.
Tyson Carter led the way with 19 points, while Xavian Stapleton posted 15 points in only 18 minutes of action. The Bulldogs stand one win shy of Madison Square Garden and the tournament's semifinal round for the first time since 2007.
Playing in Baylor's Ferrell Center, the Bears took a two-point lead with only five seconds left in the contest. A 3-pointer by Carter pushed the advantage to 40-20 with 4:22 left in the half.
The junior guard was sprinting down the floor when he received a pass behind the arc with time ticking down, the Bulldogs down by two points.
Baylor cut the lead in half three minutes into the third quarter.
Baylor scored 12 consecutive points with 9:01 left in the 2nd Overtime, making the game 62-57 in favor of Baylor. Baylor hit 31 of 61 shots from the field (50.8 percent), 3 of 12 shots from 3-point range (25.0 percent) and 12 of 17 shots from the foul line (70.6 percent). Weatherspoon contributed 13 along with Aric Holman, while Peters scored nine points handed out 10 assists. In 23 minutes, he collected 19 points, 1 rebound, 1 assist, 3 steals and 5 threes with 2 turnovers.