Cavanaugh, who has scored in double figures in every game this season, was 13 of 15 from the free-throw line where the Colonials (14-3, 3-1 Atlantic 10) made 29 of 34. Patricio Garino added 17 points, Kevin Larsen 13 points and eight rebounds, and Alex Mitola 11 points and seven assists. Garino and Mitola had three 3-pointers apiece as George Washington was 8 of 19 for 42 percent from the arc.
Donte Clark scored 19 points, Trey Davis 13, and Antwan Space and Jabarie Hinds added 10 apiece for the Minutemen (8-8, 1-3), who have lost three straight. UMass shot 49 percent but was just 5 of 19 from the arc.
Garino scored 10 straight points in a 14-7 run that gave the Colonials a 13-point lead with 7:19 left and the lead stayed in double figures.