Boo Buie scored seven of his 31 points in overtime to help Northwestern beat Zach Edey and No. 1 Purdue for the second straight season, winning 92-88 on Friday night in the Big Ten opener for each school.
Buie also had nine assists and four rebounds, rallying Northwestern from an eight-point halftime deficit. Ty Berry also scored seven points in OT and finished with 21, and Ryan Langborg added 20 points.
The Wildcats (6-1, 1-0) became the seventh program since 2010-11 to beat a team ranked No. 1 in the AP poll in consecutive seasons. They topped the Boilermakers 64-58 on Feb. 12 for their first win against a No. 1 team.