Bronson Koenig scored 15 points and Wisconsin upset eighth-ranked Iowa 67-59 on Wednesday night, handing the Hawkeyes their third loss in four games.

Nigel Hayes had 10 points for the Badgers (18-10, 10-5 Big Ten), whose streak of nine wins in 10 now includes a victory in Iowa City that should help their NCAA Tournament hopes immensely.

Zak Showalter’s layup with 1:15 left put Wisconsin ahead 64-58, and a steal and two free throws by Koenig put the game out of reach.

Peter Jok scored 21 points and Adam Woodbury had 18 rebounds for Iowa (20-7, 11-4), which fell a full game behind league-leading Indiana after shooting just 27 percent in the second half.