Laurent Rivard scored all 16 of his points after halftime to help Harvard's 67-62 come-from-behind victory against George Washington on Saturday.
Oliver McNally finished with 16 points, while Kyle Casey scored 10 points and grabbed 15 rebounds to help the Crimson (12-3) to their fifth straight victory and seventh in their last eight games.
Tony Taylor scored 14 points and Bryan Bynes added 13 points for the Colonials (10-7), who had their five-game win streak snapped.
Harvard turned around a poor first-half shooting effort, hitting 52 percent of its field goal attempts after halftime to climb back from a deficit that was 33-26 at halftime and as large as eight in the first half.
Harvard shot just 28 percent before halftime in what was the final non-conference regular-season game for both teams.