Fallon Stokes hit three jumpers for the Yellow Jackets (13-11, 4-8 ACC) in the final minutes, including the go-ahead score with 58 seconds left. Alex Stewart extended Georgia Tech's lead to three by hitting two free throws with 24 seconds remaining.
The Terrapins (15-9, 7-6) failed to draw even in the final seconds, getting just a layup by Delvona Oliver as time expired.
Crystal Washington and Kalika France scored 13 apiece for Maryland. Stokes led Georgia Tech with 18.
Henn's shot gave Loyola a 60-57 lead. Manhattan's Nikoletta Deutsch cut the margin to 60-59 with 35 seconds remaining.
Lindsay Cobb led Loyola with 20 points. Katie Scherle had 14 and Lauren Troupe added 13 points and 10 rebounds. Rosalee Mason led the Lady Jaspers (8-14, 4-1) with 22 points and 16 rebounds.
Lauren Hogan led the Rams with 18 points. Cyndy Wilks added 15, including seven late in the game. Towson fell to 9-13, 1-2.