The Wolverines battered the Terps' pitching for 12 hits.
The Terps managed just one run in 14 innings of play Saturday.
Regan Kerr's first inning solo shot was one of just two hits for the Terps.
The Terps won their first home series in nearly three years.
The Terps cruised in the first game and walked off the Spartans in the second contest.
The Terps' bats fell quiet in game one but roared to life in game two for a mercy-rule victory.
The Terps have not clinched a series at the Maryland Softball Complex in nearly three years.
Haley Ellefson knocked in the winning run to give the Wildcats their second loss of the season in game one.
The Terps lost their third straight game by at least eight runs.
It will be the first time coach Mark Montgomery will play a game in the state of Maryland.