Iowa was down seven and looking uninspired.
Instead of folding like they had so often this season, the Hawkeyes made a few buckets, forced a few stops and blew past the Miami Hurricanes.
Samantha Logic had 23 points with 11 rebounds and Iowa beat eighth-seeded Miami 69-53 on Sunday night, snapping a two-game losing streak in the NCAA tournament.
Melissa Dixon added 13 points in the second half for the Hawkeyes (21-12), which will face top-seeded Notre Dame Tuesday night in Iowa City.
The Fighting Irish throttled Tennessee-Martin 97-64 earlier Sunday.
"Logic really was extraordinary. Melissa Dixon was a great spark off the bench for us in the second half," Iowa coach Lisa Bluder said.
Iowa, which at one point this season lost five straight, broke open a stalemate with an 18-3 run to jump ahead 58-44 with 7:07 left.
Miami (21-11), which was up by seven early in the second half, shot just 3 of 19 from 3-point range and 30 percent overall.
Morgan Stroman had 15 points and Shawnice Wilson had 15 points and 18 rebounds for the Hurricanes, who committed 24 turnovers.
"They're composed. The ball means more to them than it does to us. That's a heck of a compliment for them," Miami coach Katie Meier said of Iowa. "Their guards controlled the game."
Neither team could break free for about 27 minutes, which wasn't surprising in a matchup of 8-9 seeds.
The Hawkeyes finally woke up and buried the Hurricanes.
Jaime Printy buried a 3 to put Iowa ahead 45-41, and the Hawkeyes turned Miami over to the delight of their home crowd. Dixon hit three 3s to boost the Hawkeyes, and her layup made it 52-41 Iowa with 10:26 left.
Miami couldn't answer on offense, and Johnson's jumper put Iowa ahead by 14.
"I don't think slipping was in our mind. We had to get some stops and run our sets for (Dixon)," Logic said. "It never really felt like it was slipping away, especially when you have shooters like her on the team."
No. 1 Notre Dame 97, No.16 Tennessee-Martin 64:Jewell Loyd scored 27 points and top-seeded Notre Dame blew past Tennessee-Martin.Kayla McBride had 22 points and 10 rebounds for the Fighting Irish (32-1), who have won 27 straight heading into Tuesday's second-round matchup with either Iowa or Miami. Natalie Achonwa added 16 points.
No. 2 Duke 67, No. 15 Hampton 51: Tricia Liston scored 13 of her 20 points in the second half and Duke pulled away to beat Hampton.
No. 7 Oklahoma State 73, No. 10 DePaul 56: Toni Young scored 20 of her 25 points in the first half to help Oklahoma State beat DePaul. Anna Martin scored 12 points for the 10th-seeded Blue Demons (21-12).
No. 2 Kentucky 61, No. 15 Navy 41:DeNesha Stallworth scored 18 points and Jennifer O'Neill added nine of her 12 points in the second half to lead Kentucky over Navy.The Wildcats (28-5) trailed by one at the half before O'Neill, who grew up in New York, took over. She hit a quick 3-pointer to start a 12-2 run.
No. 3 North Carolina 59, No. 14 Albany 54:Tierra Ruffin-Pratt scored a career-high 30 points, and North Carolina squeezed past Albany to stagger into the second round.North Carolina trailed 28-23 at halftime and 48-44 with just under 10 minutes left before rallying behind Ruffin-Pratt, who scored 17 of the Tar Heels' final 21 points — including two clinching free throws with 10.8 seconds left.
No. 6 Delaware 66, No. 11 West Virginia 53:Elena Delle Donne scored 33 points and led a second-half surge that carried Delaware past West Virginia.Playing on their home floor before a sellout crowd, the Blue Hens trailed 33-26 at halftime before bouncing back to extend their school-record winning streak to 26 games.
No. 7 Dayton 96, No. 10 St. John's 90, 2 OT: Andrea Hoover scored a career-high 24 points and Dayton outlasted St. John's.It was the first double overtime game in the tournament since 2000 when Vanderbilt beat Kansas.
Ok. City Regional
No. 1 Baylor 82, Prairie View A&M 40:Brittney Griner had 33 points, 10 rebounds, six blocks and another dunk, and defending champion Baylor opened the NCAA tournament with victory against Prairie View A&M.Griner's record 15th dunk was the first of several plays that drew big roars from the crowd with the game well in hand in the second half. The Lady Bears (33-1), the overall No. 1 seed, won their 31st straight game since an early-season loss to Stanford, another top seed.
Kate Thompson hit a key 3-pointer down the stretch and another late jumper to finish with 17 points, and No. 8 seed Michigan overcame a cold-shooting first half to beat ninth-seeded Villanova.