With today's win against Buffalo and Washington's overtime win Philadelphia, the Pittsburgh Penguins have clinched first place in the East Division.
Pittsburgh and Washington can still finish the season with the same amount of points (77) and regulation wins (29) which is the first tie breaker, but Pittsburgh has the edge in the second tie-breaker, regulation plus overtime wins, regardless of what happens in Washington's final game.
The division title is the ninth in franchise history, and first since the 2013-14 season.