Alyssa Baron scored 23 points and Sydney Stipanovich added 19 to lead Penn to an 80-64 win over rival Princeton on Tuesday night and give the Quakers the conference's automatic bid to the NCAA tournament.
It's Penn's first title since the 2003-04 season and the Quakers ended the Tigers' stranglehold atop the conference. Princeton had won the previous four league championships.
Tuesday night's game marked only the second time in league history that the final game of the regular season decided the champion. The previous time came in 1995 when the championship came down to the final game between Harvard and Dartmouth.
The Ivy League is the only conference in the country that doesn't have a postseason tournament to decide its champion.
Kathleen Roche scored 17 points for Penn (22-6, 12-2 Ivy League).
Blake Dietrick had 14 points to lead Princeton (20-8, 11-3).