Beanpot

The Beanpot pits the area's four college hockey powers against each other on the first two Mondays in February, rotating the matchups so BU and BC meet in the first round only once every three years.

That's why Harvard and Northeastern played the early game in front of a sparse crowd before fans filled out the TD Garden for the main event

Source: http://www.baynews9.com/article/sports/ap/february/205418/Neastern-and-Boston-College-to-play-for-Beanpot