Ryan Donato scored a hat trick as the Harvard men’s hockey team advanced to the ECAC semifinals on Sunday with a 4-2 victory over Dartmouth at Bright-Landry Center.

Adam Fox added a goal and an assist for the Crimson (15-13-4), who travel to Lake Placid, N.Y., next weekend to face Clarkson, who beat Colgate in the deciding game of their quarterfinal series, 5-1.

Dartmouth (16-17-2) opened the scoring on Collin Rutherford’s goal at 4:43 of the first period. Donato tied it seven minutes later, assisted by Reilly Walsh and Fox.