Kevin Garnett had 17 points, 20 rebounds and five steals, Paul Pierce had 17 points and eight rebounds, and Eddie House had 15 points for Boston (20-2). The visiting Celtics are on their longest winning streak since 1986, when they won 14 straight on their way to the NBA title.
Indiana is one of two teams to beat Boston this season, and the Pacers nearly pulled it off again by shooting 50 percent from the field against the league's top defensive team.
It was the most points the Celtics have allowed this season.
Boston defeated Indiana, 114-96, on Wednesday. Rajon Rondo had a triple double with 16 points, 13 rebounds and 17 assists that night, but had only seven points, seven rebounds and six assists last night.
It was an unusually close call for the Celtics. They had won their previous 11 games by an average of 14 points.
Trail Blazers 98, Raptors 97: LaMarcus Aldridge scored 20 points, Steve Blake (Maryland) made a clutch three-pointer with eight seconds left, and Portland spoiled Toronto coach Jay Triano's home debut.