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Patrick Semansky, Associated Press
Georgia Tech guard Metra Walthour, center, attempts to drive to the basket as she is defended by Maryland's Alicia DeVaughn, from left, Lynetta Kizer, and Anjale Barrett in the first half of an NCAA college basketball game in College Park, Md., Friday, Jan. 6, 2012.

COLLEGE PARK, Md. — Alyssa Thomas scored 18 of her 24 points in the second half, including a pivotal three-point play with 17 seconds left, and No. 5 Maryland rallied from a 20-point deficit to beat Georgia Tech 77-74 Friday night.

The Terrapins (15-0, 2-0 Atlantic Coast Conference) trailed 56-36 shortly after halftime and 72-64 with 4:23 remaining before coming back. After Thomas gave Maryland a 76-74 lead by scoring in the lane and adding a free throw, Georgia Tech's Metra Walthour lost the ball driving to the basket and Laurin Mincy made a clinching foul shot for the Terps.

Mincy scored 17 points and Alicia DeVaughn contributed 11 points and 11 rebounds for the Terrapins.

Sasha Goodlett had 20 points and 10 rebounds for the Yellow Jackets (11-4, 1-1) and Tyaunna Marshall scored 16.