Ethan Happ scored underneath the basket with 10 seconds left and Wisconsin defeated No. 4 Michigan State, 77-76, on Sunday at Madison, Wis.
The Spartans still had two chances to win but Denzel Valentine missed a three-point shot and Matt Costello's last-second side jump shot bounced off the rim.
Bronson Koenig scored 27 points and Nigel Hayes had 25 for the Badgers (10-9, 2-4 Big Ten Conference), who trailed, 76-72, after Valentine made a runner.
Koenig made a three-pointer with Valentine in his face and the shot clock winding down to pull Wisconsin within 76-75 with 27 seconds left.
The Badgers went to a full-court press for the first time in the game and forced a turnover as Eron Harris stepped out of bounds while double-teamed.
With the clock winding down, Koenig found Happ for the winning basket.
Valentine led Michigan State (16-3, 3-3) with 23 points and Costello scored 18.
No. 10 Southern Methodist 60, at Tulane 45: Markus Kennedy scored 13 points and the Mustangs (17-0, 6-0 American Athletic Conference) pulled away late to remain the nation's only unbeaten Division I team.
Jordan Tolbert and Nic Moore scored 12 points each for the Mustangs, who shot a season-worst 40.4% (21 of 52) and did not take the lead for good until Ben Moore's running floater as he was fouled made it 33-30 with 12 minutes 41 seconds to go.
Melvin Frazier scored 11 points and Malik Morgan had 10 for the Green Wave (8-11, 1-5), which has lost five of its last six games.
Southern Methodist made one of 10 three-point shots but outscored Tulane, 32-16, in the paint.
at Florida State 69, No. 13 Virginia 62: Dwayne Bacon scored 18 points and the Seminoles (12-5, 2-3 Atlantic Coast Conference) ended a losing streak against ranked teams at five games.
The Seminoles trailed, 39-36, early in the second half but took control with a 12-3 run.
London Parrantes led the Cavaliers (13-4, 2-3) with 19 points and Anthony Gill scored 13.
at No. 16 Iowa 82, Michigan 71: Jarrod Uthoff scored 23 points and the Hawkeyes are off to their first 5-0 start in the Big Ten in 19 years.
Peter Jok had 14 of his 16 points in the second half for Iowa (14-3), which has won seven consecutive games.
The Hawkeyes broke open the game with a 16-3 run midway through the second half.
Derrick Walton Jr. had 16 points for the Wolverines (13-5, 3-2).
at Colorado 91, Oregon 87: Josh Scott had 17 points and 11 rebounds for the Buffaloes (14-4, 3-2 Pac-12), who have won three of their last four games.
Dillon Brooks scored 21 points and Tyler Dorsey had 19 for the Ducks (14-4, 3-2).
at Utah 59, Oregon State 53: Beavers forward Jarmal Reid tripped a referee and was ejected with 2:56 remaining, starting the Utes' winning rally by the Utes (13-5, 2-3).
Reid fell while dribbling when a Utah player seemed to bump him. He complained there was no foul call and then stuck his right leg out while getting up and the official stumbled to the court.