The Terps had lost three of their past four games.
They each scored twice against Bucknell on Sunday.
The Terps struggled to score against top teams.
After a surprise run to the 2017 title game, the Terps have been determined to finish the job this year.
The Terps are 16-2, with both losses to teams below them in the rankings.
Donraadt and Daphne Groothuis were teammates and classmates in their native Netherlands.
The Terps ended the game in commemorative Big Ten T-shirts and hats.
Tjerk van Herwaarden became Harvard’s head coach in 2012 after seven seasons at Maryland.
Newcomer Nike Lorenz scored all three points.
Sprink is getting her master’s degree from a school in Germany and plays for Rot-Weiß Köln.