Calhoun took the handoff running right, bounced outside and fended off Illini safety Kevin Mitchell to reach the corner of the end zone.
Wisconsin ran the ball on all 11 plays in the drive, with Calhoun rushing nine times for 53 yards.
Drive summary: 11 plays, 80 yards, 4:10
Key plays: On third-and-one from the UW 41, Calhoun looked to be bottled up behind the line of scrimmage to the left side, but he evaded a pair of tackle attempts and picked up three yards and a first down.
On first-and-10 from the Illini 45, tailback Booker Stanley took a handoff up the middle, found a seam and cut to his left into the secondary for a 20-yard gain.
Wisconsin 13, Illinois 0, first quarter, 6:52
Facing third-and-six from its 38-yard line, Wisconsin called a pass play for the first time Saturday. Williams came in motion from left to right and ran straight down field, effectively uncovered. He caught Stocco's pass behind the secondary and sprinted into the end zone.
Drive summary: 5 plays, 83 yards, 2:11
Key play: On second-and-two from the UW 42, Calhoun was stopped for a loss of four as he tried to run to the left side, forcing the Badgers to pass for the first time.
Wisconsin 13, Illinois 7, first quarter, 1:59
Flushed out of the pocket to his right, Brasic found Bryant open in the front of the end zone.
Drive summary: 4 plays, 68 yards, 1:29
Key play: On the first play of the drive, Tim Brasic faked a handoff to running back Jason Davis, who then sprinted past UW linebacker Andy Crooks and safety Roderick Rogers, slipping wide open down the seam. Davis caught Brasic's pass in stride and made it to the UW 7 before he was tripped up by Jack Ikegwuonu. The play covered 61 yards.
Illini: Reda 23 field goal
Wisconsin 13, Illinois 10, second quarter, 7:42
Drive summary: 13 plays, 64 yards, 4:09
Key plays: With third-and-15 at the Illini 25, Brasic stepped up in the pocket and picked up 17 yards on a scramble.
On third-and-five from the Illini 47, defensive end Travis Beckum was caught inside the tackle, and Brasic again scrambled for a first down, this time picking up nine yards to the left side.
On second-and-four at the 28, Brasic beat the Badgers with his arm, completing a 16-yard pass to Kyle Hudson. The Illini drive stalled from there, however.
Badgers: Calhoun 2 run (Mehlhaff kick)
Wisconsin 20, Illinois 10, second quarter, 5:35
On first-and-goal, Wisconsin lined up in a jumbo formation, with reserve offensive lineman Marcus Coleman lined up as the right tight end. Coleman drove his man three yards deep into the end zone. Fullback Bill Rentmeester, who motioned to a right wing position, also made a key block, and Calhoun had an easy jaunt into the end zone.
Drive summary: 7 plays, 51 yards, 2:07
Key plays: On third-and-four from the Illini 32, quarterback John Stocco completed a 6-yard pass to receiver Jonathan Orr.
With second-and-10 at the 26, Calhoun took a screen pass in the right flat and gained 24 yards down to the Illini 2.
Badgers: Calhoun 6 run (Mehlhaff kick)
Wisconsin 27, Illinois 10, third quarter, 12:53
On second-and-goal, Calhoun took a handoff to the left side and ran into the clear for an easy touchdown.
Drive summary: 2 plays, 8 yards, 0:42
Key play: After holding Illinois to a three-and-out on the first possession of the second half, freshman reserve linebacker Jonathan Casillas blocked Steve Weatherford's punt, then tackled Weatherford at the 8.
Casillas bull rushed Brian Grzelakowski and was able to get his right hand on the punt. Weatherford recovered and tried to run to his right, but Casillas closed quickly to make the tackle.
Illini: Pierre Thomas 3 run (Reda kick)
Wisconsin 27, Illinois 17, third quarter, 4:28
On first-and-goal Illinois ran an option to the right. Brasic pitched to Thomas, who had a wide-open path to the end zone.
Drive summary: 5 plays, 73 yards, 1:37
Key play: On first-and-10 from the Illini 39, Brasic found receiver DaJuan Warren on a corner route for a 35-yard gain. The Illini ran a deep crossing pattern on the play and free safety Roderick Rogers was caught underneath and left trailing Warren.
Badgers: Calhoun 6 run (Mehlhaff kick)
Wisconsin 34, Illinois 17, third quarter, 0:04
With a second-and-goal at the 6, the Badgers handed off to Calhoun running right. Tight end Owen Daniels was initially driven backwards, but he stuck with his block and pancaked safety Kevin Mitchell, allowing Calhoun to bounce around the corner and cruise into the end zone for his fourth touchdown of the game and 20th of the season.
The final five plays of the drive were Calhoun runs, encompassing 19 yards.
Drive summary: 12 plays, 68 yards, 4:24
Key play: On third-and-one from the Wisconsin 41, Calhoun broke free for 18 yards to the Illini 41.
Illini: Kyle Hudson 32 pass from Tim Brasic (Reda kick)
Wisconsin 34, Illinois 24, fourth quarter, 4:07
On second-and-10 from the UW 32, Hudson got behind Badger free safety Roderick Rogers and caught Brasic's touchdown pass in the corner of the end zone.
Drive summary: 5 plays, 74 yards, 1:09
Key play: With a first-and-10 at the Illini 47, running back E.B. Halsey rushed to the left side for 21 yards.
Badgers: Calhoun 46 run (Mehlhaff kick)
Wisconsin 41, Illinois 24, fourth quarter, 3:54
Brian Calhoun took a handoff to the left and patiently picked his way toward the sideline. Fullback Chris Pressley slid off his initial block and sprinted downfield, where he decleated safety Kevin Mitchell, springing Calhoun for the 46-yard score.
Drive summary: 1 play, 46 yards, 0:13