On second-and-two, tailback Brian Calhoun caught a screen pass to the left side from quarterback John Stocco and burst into the clear. Near the goal line he picked up a great block from left guard Matt Lawrence. Calhoun dove forward and extended the football against the pylon for the touchdown.
Drive summary: Seven plays, 85 yards, 2:46
Key plays: Quarterback John Stocco found receiver Brandon Williams on a corner route for a 29-yard gain to the Purdue 31. The catch was Williams' 176th of his career, breaking Lee Evans' school career record.
Badgers: Mehlhaff 29 field goal
Wisconsin 10, Purdue 0, first quarter, 1:57
Drive summary: 10 plays, 49 yards 4:23
Key plays: On third-and-six from the UW 44, the Badgers faked a reverse to wide receiver Brandon Williams and threw a well-executed screen pass to tight end Jason Pociask for 27 yards. Pociask picked up very good blocks downfield from left tackle Joe Thomas and wide receiver Brandon White.
Facing third-and-eight at the Purdue 27, tight end Owen Daniels caught a low pass from quarterback John Stocco for a first down at the 18 .
Wisconsin 10, Purdue 7, second quarter, 12:42
On second-and-goal, Purdue quarterback Curtis Painter scored on a draw play up the middle behind a lead block from running back Brandon Jones.
Drive summary: 12 plays, 80 yards, 4:15
Key plays: On third-and-six at the UW 31, Purdue picked up a Badger blitz and quarterback Curtis Painter delivered a pass to wide receiver Brian Hare for eight yards to the UW 23.
Brandon Jones then ran three consecutive times for gains of nine, five and five yards to set up second-and-goal at the 4.
Boilers: Jones 24 field goal
Purdue 10, Wisconsin 10, second quarter, 0:56
Drive summary: 4 plays, 4 yards, 1:28
Key play: Wisconsin quarterback John Stocco's first-and-10 pass from the Badger 24 was deflected at the line of scrimmage by Purdue defensive tackle Brandon Villarreal and intercepted by defensive end Rob Ninkovich at the UW 29. On the return, a personal foul facemask was called against UW left tackle Joe Thomas, giving Purdue the ball at the Badger 11.
Boilers: Jones 50 field goal
Purdue 13, Wisconsin 10, third quarter, 8:08
Drive summary: 10 plays, 34 yards, 4:39
Key plays: Purdue takes possession at the Boiler 34 following Taylor Mehlhaff's missed 50-yard field goal attempt.
On third-and-eight from the Purdue 36, Painter connected with receiver Andre Chattams along the right sideline for 10 yards.
On third-and-two from the Wisconsin 46, Painter kept the ball on an option run to the left. The Badger defense was sucked inside on a fake handoff up the middle, allowing Painter to easily pick up 10 yards.
On the following play Painter tried to go deep for Kyle Ingraham, but Jack Ikegwuonu had excellent coverage. Ingraham shoved Ikegwuonu in the back, preventing a possible interception but drawing an offensive pass interference penalty. That put Purdue in a first-and-25 hole back at its 49.
On third-and-14 from the UW 40, Painter dumped it off to Dustin Keller on a swing pass to the right side. The eight-yard gain left the Boilers well short of the first down, but put them in field-goal range.
Badgers: Roderick Rogers 84 interception return (Mehlhaff kick)
Wisconsin 17, Purdue 13, third quarter, 4:33
Rogers sat on a corner post route, intercepted the pass, cut to his right, cut back to his left and picked up a wall of blockers on an 84-yard dash to the end zone.
Key play: After Lance Melvin returned a Ken DeBauche punt 11 yards to the Purdue 41, quarterback Curtis Painter tried to go deep down the left sideline for wide receiver Brian Hare. The pass was on target and Hare had gotten beyond cornerback Brett Bell and free safety Roderick Rogers. But Hare could not hold on to what could have been a 59-yard touchdown catch.
Two plays later Painter completed a 15-yard pass to running back Kory Sheets for a first down at the UW 40. But just four plays after the missed deep ball to Hare, Painter locked on his target over the middle and was intercepted by Rogers, completely changing the complexion of the game.
Badgers: Calhoun 40 pass from Stocco (Mehlhaff kick)
Wisconsin 24, Purdue 13, third quarter, 2:39
On second-and-15, Calhoun slipped out of the backfield and sprinted past the initial coverage, catching a pass wide open at the 30. With one man to beat, Calhoun juked free safety Brandon Whittington at about the 13 and ran into the end zone untouched.
Drive summary: 3 plays, 63 yards, 0:53
Key play: Wisconsin opened the drive at its 37 and Stocco completed a pass to Jonathan Orr for 38 yards to the Purdue 35.
Badgers: Jack Ikegwuonu 62 interception return (Mehlhaff kick)
Wisconsin 31, Purdue 13, fourth quarter, 3:21
Ikegwuonu stepped in front of a receiver, intercepted the Curtis Painter pass at the UW 38 and dashed towards the student section for his first career touchdown.
Key play: Purdue opened the drive first-and-10 at the UW 36 after recovering Badger tailback Brian Calhoun's fumble. Painter threw an incomplete pass before Ikegwuonu's interception return for a score.
Boilers: Dustin Keller 4 pass from Painter (Jones kick)
Wisconsin 31, Purdue 20, fourth quarter, 0:03
Drive summary: 14 plays, 70 yards, 3:10
Key plays: Purdue tailback Brandon Jones picked up two yards to convert a third-and-one from the Boiler 39, and gained three rushing yards on a third-and-two from the UW 34.