Sprong, who finished the game with two goals and an assist, scored the only goal of the frame for the Crimson.
Junior attackman Lawson DeVries tallied two assists, and junior midfielder Geoff Watson had an assist of his own.
For the game, Yale was paced defensively by senior goalkeeper Joe Pilch, who stopped 19 Harvard attempts on the afternoon.
Cynar saved 12 shots of his own, but it was not enough, as the Crimson attack was unable to generate any kind of offense in the second half.
"Our offense is very young, and their defense has been playing together for several years now," Sprong said. "That has been the case for most of the season. The teams we play against are very experienced, while we haven't play much together at all.
"We're still trying to learn how to play together well as a team, and that has led to some poor offensive production," Sprong added.
The Crimson will hope to salvage some pride from its season as it travels to South Bend, Ind. to take on Notre Dame next Saturday. After the Fighting Irish, Harvard heads to New Hampshire to close out its season against Ivy rival Dartmouth on May 8.
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