Six of the Terps' first 12 contests have gone beyond seven innings.
Lindy Milkowski hit a walkoff for the Hawkeyes.
The Terps poured in five runs in the fourth inning.
The freshman has shined with the bat, glove and on the basepaths in the Terps' opening six games.
Trinity Schlotterbeck led the way for the Terps, striking out 12 batters and posting a 0.63 ERA in the opening weekend.
Jaeda McFarland's walk-off single pushed the Terps to 3-3 on the season.
Taylor Okada drove in the game winning run in extra innings to salvage a 1-1 set against the Fighting Illini.
Jaeda McFarland scored two runs to give the Terps a decisive victory in the second game of the set.