But by then Harvard had the game well in hand. After adding a third run in the third inning, the Crimson broke the contest wide open in the sixth. RBI singles by junior shortstop Mark Mager and Lentz stretched the Harvard lead to 5-0.
Freshman outfielder Bryan Hale, batting in the ninth spot, greeted Eagle reliever James Dawson with a solo home run to left, closing out the scoring for Harvard.
Boston College did shut down the Harvard running game, throwing out three of four Crimson runners attempting to steal.
"We're normally a hit and run team," Walsh said. "Two home runs is not our style of game."
The Crimson helped itself with a solid defensive performance. Harvard played error-free ball a day after committing four costly miscues against Northeastern.
Sheffield helped his own cause with a defensive highlight in the eighth. The pitcher ran full speed up to the BC dugout to make a running catch on a ball hit to foul territory.
Harvard will play its third non-conference road game in as many days when it travels to Burlington to play Vermont this afternoon.