Notre Dame's defense continues to keep Purdue at bay as the Irish hold a 20-3 lead in the fourth quarter.
Irish cornerback Gary Gray knocked a pass away at the mouth of the end zone and nose tackle Ian Williams recovered to end the Boilermakers' scoring threat from Notre Dame's five-yard line. Purdue drove to the five at the end of the third quarter and was facing fourth-and-1 to start the fourth quarter.
Notre Dame has given up 251 yards to Purdue, and limited quarterback Robert Marve to mostly short passes.
But Notre Dame did give up a safety after getting the ball back on its 3-yard line. Purdue's Ryan Kerrigan and Charlton Williams took down Armando Allen in the end zone.
Notre Dame quarterback Dayne Crist's first passing touchdown of the season was TJ Jones' first scoring catch of his career.
Crist hit the freshman receiver on a five-yard toss to give the Irish a 20-3 lead with 10:20 to play in the third quarter. Crist went 17 for 21 for 186 yards and a touchdown in three quarters.
Receiver Michael Floyd gave away a touchdown when he dropped a pass on his way to the end zone midway through the third quarter.