Boston got 34 points from Paul Pierce en route to a 117-115 victory over Dallas on Wednesday at TD Garden.
Bettors who backed the Celtics were disappointed, as they failed to cover the closing number of 6. Over-Under bettors saw the total score go OVER the closing total of 197.5.
Kevin Garnett had 16 points for Boston and Rajon Rondo chipped in with 16 points. Rajon Rondo had 15 assists for the Celtics, while Rajon Rondo was the team's top rebounder, grabbing 9 boards.
The Mavericks got a 24-point performance from O.J. Mayo, who was supported by 20 points from Darren Collison. Shawn Marion had 7 assists in a losing cause for Dallas, while Shawn Marion grabbed 11 rebounds.
The Celtics hit the break leading 48-43 before taking care of business in the second half.
Dallas won the battle of the boards, outrebounding their counterparts 50-42.
Boston looks to continue their winning ways next game with a battle against the Rockets. The Mavericks will aim to get back on the winning track at Toronto.