Forget Boston University -- it's the Crimson who play the role of BC Women's Hockey's biggest nemesis on the national stage.
Sure, there's the natural hate from lining up on the blue line across from the Terriers. But Boston University's varsity program has only been in existence since the 2005-2006 season, and while BU's 5 consecutive Hockey East championships have upped the ante over the last several years, BC's rivalry with Harvard has much deeper roots.
BC and Harvard have played every season for as far back as USCHO's schedules go (the 1998-1999 season) and have probably played for much longer than that.