A Hankerson jumper with 3:38 left to play put Boston University (12-14, 8-7 Patriot League) up by a dozen points, 49-37. American cut the lead to 51-44 on a Jesse Reed 3-pointer, but Will Goff sank 9 of 10 foul shots for Boston U in the final 1:12.
Goff finished with nine points, not even attempting a field goal, as the Terriers hit 17 of 24 at the free-throw line.
The win pushes Boston U into fourth in conference. The top four Patriot League teams get a first round bye in the conference tourney.