Adair scored when he rolled out from behind the cage and flipped a waist-level shot past Cynar.
He led the Eagles with three goals on the afternoon.
After the Crimson went up 2-1 on the first of three man-up goals on the afternoon, sophomore Tripp Callan scored the first of his two goals on the afternoon to up the lead to 3-1.
Callan took freshman James Christian's pass from behind the net on the left side and beat B.C. senior goalie Anthony Cirri in the bottom right corner of the net.
Sophomore midfielder Adam McGowan closed out the first half's scoring on a sparkling offensive rush keyed when senior longstick Ethan Oberman picked up a ground ball in the midfield. Oberman flipped the ball ahead to McGowan, who broke down the middle of the field uncontested and zipped a shot past Cirri for the 4-1 advantage.
Harvard outshot the Eagles 14-3 in the second period.
At times, Cirri was the lone force keeping the Eagles involved, as he made several quality saves, including stoning Buttles from point-blank range in the second.
Cirri made 22 saves but saw his robust GAA increase to 11.00.
Read more in Sports
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