The Celtics finished the opening quarter on a 13-4 run to grab a 29-21 lead. Paul Pierce led the Celtics in scoring with nine points, while Rajon Rondo added eight points, four rebounds and two assists.

Boston shot 67 percent from the floor and passed the ball brilliantly, collecting 11 assists on 14 field goals.

Dwyane Wade and Carlos Arroyo topped the Heat with six points each.