Co-captain Devin Tringale carries the puck during Friday's 4-1 win for the Crimson, who has now gone unbeaten in 11 straight games.
Harvard forced freshman goaltender Jake Kielly (30 saves) to have a busy night in his crease Friday.
This shorthanded strike from senior Luke Esposito gave the Crimson a commanding 3-0 edge early in the third period. Esposito now has three man-down goals in February alone.
Sophomore Lewis Zerter-Gossage kickstarted this rush in the first period that led to a score from co-captain Alexander Kerfoot at the bottom of the slot.
In the latest meeting between Harvard and Union, the Crimson upended the Dutchmen by a 6-2 margin at the Bright-Landry Hockey Center.
When Harvard and Union met for the first time this season at Messa Rink, Hobey hopeful Mike Vecchione set up the game-winning goal in what amounted to a 2-1 victory for the Dutchmen.
One night after topping Clarkson, 4-1, the Crimson will need to win its 10th straight game in order to keep its ECAC regular-season title hopes alive.
Harvard struck three times in the opening period Saturday night to open up a 3-0 lead over St. Lawrence in the two teams' regular season finale.
For the first time since 1994, Harvard has finished the regular season atop the ECAC.
Harvard 6, St. Lawrence 3.
Co-captain Alexander Kerfoot lifts the stand-in trophy.
Co-captain Devin Tringale hoists a stand-in for the Cleary Cup after the Crimson's 6-3 win over St. Lawrence.
Senior forward Luke Esposito holds the trophy as junior goaltender Merrick Madsen looks on.
Senior defenseman Clay Anderson earned his 12th assist of the season in the win.
Senior forward Phil Zielonka earned two assists in the first period against St. Lawrence.