The Celtics held off a second-half rally to show the Cavaliers who's the boss in the Eastern Conference. The Cavaliers are now just the eighth team in NBA history to start 12-0 or better. Here's a look at the lay of the land in each of the six groups as the tourney presses on.

The Atlanta Hawks defeated the Cleveland Cavaliers 135-124 after being a double-digit underdog last night. The Cavs started the game hot on a 10-0 run, and they eventually increased the lead up to 19.

However, Cleveland was outscored 27-8 to end the period tied at 35-35, and eventually fell to Atlanta by a final score of 135-124. After winning each of their first 10 home games to start the season,