The Terps allowed a goal with 20 seconds left in regulation to send the game to overtime.
The Terps christened the newly-renovated Maryland Field Hockey and Lacrosse Complex with a dominant win.
The Terps avenged their loss to the Orange last season and earned their first top-5 win since 2022.
The victory is the Terps' third consecutive win in a season opener.
The Terps are looking to improve from a disappointing year where they ranked 43rd in the country in goals per game.
The Terps had high expectations entering the 2023 season, but their talent never coalesced as they fell in the first weekend of NCAA tournament play.
The Terps gave up the last five goals of the game after leading 14-10 with under ten minutes left.
Terps attacker Libby May will face her former high school teammate Isabella Peterson in Sunday's NCAA tournament game against the Dukes.
The Terps will face James Madison on Sunday at 1 p.m.
The Terps will play for their fifth Big Ten championship after outscoring the Scarlet Knights 10-1 in the first half.