Home cookin' does wonders for the Celtics defense.
The defense does not travel well. While Boston has been solid defensively on its home court, allowing 98.9 points per 100 possessions (14th), the same has not been true on the road. Away from home, the Celtics have allowed 106.5 points per 100 possessions (25th in the league).
Thankfully they are playing at home tonight.