Weisz scored 12 of his points in the first half as Princeton jumped to a 37-23 lead at halftime. He also had four assists, tying a career-best. Barrett finished 5 of 8 from the field, with all of his shots coming from 3-point range. Bray made six of his 10 shots, including three 3-pointers.
Princeton (12-3) hadn't played since it lost to Ivy League foe Penn on January 11. The Tigers return to league play Friday night against Harvard.
It was the first meeting between the in-state schools. Kean last played a Division I opponent on Nov. 20, 2010 -- an 86-66 loss to Maryland-Eastern Shore.