The Terrapins (16-20) fell behind in the first and could not come back as VCU scored in the first five frames to take a commanding lead. Bednar and Costes both had multi-hit games.
Bednar cut the Rams lead to 4-2 in the bottom half to the second, slamming his fourth homer of the year, a two-run shot. After two more VCU runs in the third, Costes hit his third home run of the year to make it 6-3.
VCU scored eight unanswered runs to end the game.
Maryland returns to action Friday night against Purdue. Action is set to begin at 6:30.