COLUMBUS, Ohio (AP) Sierra Calhoun sent her teammates into a frenzy of celebration when she hit a 3-pointer to pull Ohio State even with Miami at the regulation buzzer. But the Buckeyes let the momentum slip away in overtime.
Keyona Hayes scored 23 points, Jessica Thomas added 16 and the No. 18 Hurricanes outlasted No. 9 Ohio State 94-89 on Thursday night in the ACC/Big Ten Challenge.
Calhoun's big shot tied it at 84 at the end of regulation. But the Hurricanes took over, and Hayes' 3-pointer with 2:30 left in overtime put Miami (6-1) ahead to stay in the game that featured 13 lead changes.
''Those were two really great teams that just went at each other,'' Miami coach Katie Meier said. ''No one should feel bad.''
Kelsey Mitchell led Ohio State (5-3) with 29 points on 5-for-11 3-point shooting after hitting just one in the first half, and Shayla Cooper added 17 points and 11 rebounds.
Mitchell hit a 3-pointer to pull Ohio State within a point with 5 seconds left in overtime, but the Buckeyes were forced to start fouling and the Hurricanes hit four free throws in the last 4 seconds.
''Obviously in the second half she was very good and made a lot of big plays for us,'' coach Kevin McGuff said about Mitchell. ''It's unfortunate we couldn't take advantage of that and win the game.''
Laura Cornelius added 11 points, and Erykah Davenport had 10 points and 10 rebounds for the Hurricanes.
Ohio State came from behind to lead 22-17 after the first period on the strength of a 10-0 run to finish it. But the Buckeyes went cold, and Miami surged ahead on an 11-0 run and led at the half 41-30. Ohio State hit just 2 of 12 shots from the floor in the second quarter, and was just 1 for 13 from 3-point range in the first half.
''Communication was poor,'' Cooper said of the Buckeyes' poor second frame. ''Not being in the right spots, not being disciplined on defense.''
Ohio State came alive again in the third, hitting its last six shots from the floor in the period, including back-to-back 3-pointers by Mitchell and Kiara Lewis. Miami led 60-59 after three.
The teams shot with about the same accuracy - 48 percent for Ohio State, 46 percent for Miami - but the Buckeyes had 17 turnovers compared with 13 for the Hurricanes.
Miami: Miami battled similarly talented team, persevered and pulled off the upset.
Ohio State: The Buckeyes let a game slip away to a tenacious opponent in overtime after tying in dramatic fashion at the buzzer. Having started the season at No. 6 in the AP Top 25, Ohio State runs the risk of now dropping out of the top 10.
Ohio State kept Stephanie Mavunga out of the game, even though at 6-foot-3 she's the team's tallest player and could have been a big help on the boards down the stretch Thursday. McGuff said Mavunga has general soreness.
''She's just been a little bit sore,'' McGuff said. ''I don't think it's anything long-term. We're just trying to give her some rest now early in the season where it will benefit us later in the year.''
Miami: Returns home to play Old Dominion on Sunday.
Ohio State: Faces Southern University at home Wednesday night.
Follow Mitch Stacy at http://twitter.com/mitchstacy