Logan Aronhalt went 5-of-7 from 3-point range en route to 15 points and Seth Allen also struck for 15 as the second-seeded Terrapins (23-12) moved on with their third win in four games.
Dez Wells (12 points, five rebounds) and Charles Mitchell (10, four) also reached double figures in the victory.
The seventh-seeded Purple Eagles (19-14) were paced by Antoine Mason with 24 points.
Ameen Tanksley added 18 with seven boards in the loss.
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