Jok, the Big Ten’s leading scorer at 21 points a game, had started 56 games in a row for the Hawkeyes. But Iowa played inspired in his absence, jumping ahead by 11 at halftime and getting its first 61 points from underclassmen.

Jae’Sean Tate scored 17 to lead the Buckeyes (13-9, 3-6), who fell to 1-4 on the road after an effort that resembled an 89-66 loss at Wisconsin two weeks ago. Ohio State, which trailed by as much as 20, let Iowa shoot 50 percent and needed a late run made the final score as close as it was.