Notre Dame holds a 34-30 lead over Akron after the first half of the teams' second-round NCAA tournament game in Chicago's United Center.
The Irish, who are the No. 2 seed in the Southwest Region, appeared ready to take control of the game against the No. 15-seeded Zips with a 10-0 run early in the first half that gave them a 16-6 lead.
But Akron kept chipping away and pulled within 23-18 with 7:28 to play after Quincy Diggs hit a three-pointer.
The Irish settled down to go up 30-23 with 5:23 to play, but the Zips closed the half on a 7-4 run.
Akron is hanging around thanks to its offensive rebounding, the Zips have six. But 7-foot center Zeke Marshall's inefficiency on offense his keeping the Irish ahead.
Marshall is 1 of 9 from the floor and missed a chance to cut Notre Dame's lead to two at the end of the half.
Ben Hansbrough has 11 points for the Irish, and Tim Abromaitis has six.
But Notre Dame needs to get Abromaitis more involved. The forward's six point came in the game's first four minutes and he only attempted two field goals in the first half, going 1 for 2.