Terence Dials had 22 points to lead Ohio State.
COLUMBUS (AP) -- It's been a tough week for No. 14 Iowa.
The Hawkeyes came into Big Ten play this week with a nine-game winning streak, but are now 0-2 in the conference after an 81-69 loss to Ohio State on Saturday.
"We were really playing well and now we look like a different basketball team," coach Steve Alford said.
Iowa (12-3, 0-2), fell to Michigan on Wednesday, but now have a week off before its next game.
"We need the bye week," Alford said. "Both Michigan and Ohio State played really well and we didn't get the job done."
Iowa is 0-2 in league play for the first time in 11 years, and the schedule doesn't get any easier. The Hawkeyes still have to play No. 1 Illinois twice, in addition to six other tough conference road games.
Terence Dials scored 22 points and drew attention away from Ohio State's perimeter shooters as the Buckeyes (12-3, 1-1) never trailed.
"He attracts players," Ohio State swingman Je'Kel Foster said of Dials.
Every time Dials touched the ball down low, Iowa players surrounded him. He frequently passed the ball back outside for an open shot.
"We didn't want them shooting 3s and we tried to defend Dials at the same time," Alford said. "We didn't defend him, and their 3-point shooters shot well."
A 12-0 first-half run allowed Ohio State to build a double-figure lead.
Dials hit 8-of-12 from the field and 6-of-7 at the free throw line. He had scored just seven points on 2-of-5 shooting in Wednesday night's 84-65 loss to Illinois.
"We've learned to keep within our system," Dials said. "I got a couple of big guys in foul trouble and the guards did a great job of getting me the ball."
The attention to Dials opened things up on the perimeter.
Tony Stockman hit 5-of-7 3-pointers and added 19 points for Ohio State, which was 12-for-28 from behind the arc. Foster matched his career high with 12 points for the Buckeyes, hitting 4-of-7 3-pointers.
"We were successful with our 3-point shooting because they had to worry about Terence," Stockman said.
Pierre Pierce had a career-best 31 points on a variety of drives to the hoop and outside shots with defenders draped over him. Greg Brunner added 14 points and 11 rebounds for the Hawkeyes.
Down 47-32 at the half, Iowa cut the lead to nine with a 9-0 run -- Brunner hitting two free throws and a basket in the surge. Ohio State coach Thad Matta slammed his open hand across the front of the scorer's table -- making a loud noise in an arena growing quieter by the minute -- when Brunner's offensive-rebound basket cut the lead to 59-49 a few minutes later.
The teams traded baskets for the next eight minutes until Stockman tossed in a high arching 3-pointer from 5 feet behind the arc for a 70-57 lead with 5:16 left. Iowa never got closer than 11 points again.