Sunday's final inning against the Hawkeyes showed the the Terps' recent struggles in closing out games.
The Terps won the series with back-to-back wins over the Hawkeyes on Friday, but couldn't complete the sweep.
The Terps used their power to take down the Hawkeyes in their Big Ten opener.
The Terps used a second quarter in which they outscored the Hawkeyes 27-8 to take a commanding lead that they never surrendered.
Caitlin Clark and Monika Czinano combined for 70 points as the Terps dropped their third Big Ten game of the season.
The Terps defeated Iowa on Friday, bringing their home record to 11-0.
The Terps advance to 5-2 in conference play after sweeping the Hawkeyes.
The Terps claimed the early series win against the Hawkeyes after a mercy-rule win.
After the Terps honored coach Mark Montgomery for his 600th career win, they earned his 601st in a thriller.
Despite scoring 87 points, the Terps were no match for the Hawkeyes' domineering offense.