Tre Demps scored 23 points to lead Northwestern to a 71-61 win over Penn State on Thursday.
A.J. Hammons had 18 points and 12 rebounds, and Johnny Hill added a season-high 15 points to help No. 17 Purdue get past Northwestern 71-61 on Tuesday night.
Rachel Banham tied an NCAA single-game record with 60 points in leading Minnesota to a 112-106 double-overtime win over Northwestern on Sunday.
Northwestern will be without Vic Law this season as the sophomore is facing surgery to repair a torn labrum in his left shoulder.
Alex Olah scored 21 points with 11 rebounds, and Aaron Falzon scored 20 points off the bench as Northwestern beat UMass-Lowell 79-57 on Friday.
Georgetown and Maryland will renew a regular-season series with the agreement to play in the inaugural Gavitt Tipoff Games, a scheduling challenge between the Big Ten and Big East.