Daniel Maltz and Braden Erksa scored four while Jack Koras added three goals in the Terps' win over the Great Danes.
The Terps fell in their first overtime game since a sudden-death winner against the Fighting Irish in 2021.
Ten different Terps scored as the Maryland secured its first victory of 2023.
After a record-breaking title-winning season, the Terps have few peers in lacrosse history.
The Terps will head to their second consecutive NCAA tournament final.
Logan Wisnauskas broke the Terps' all-time career points record with 291 points in his five-year tenure with the team.
The Terps scored 13 unanswered goals to pull ahead of the Nittany Lions.
The Terps held the Fighting Irish scoreless for just under seven minutes at the end of the game to earn a close victory.
After scoring four goals against the Tigers, Logan Wisnauskas is in second place for most career points in Maryland lacrosse history.
The Terps scored at least 20 goals for the second straight game, with 11 different players netting at least one goal.