The Celtics have won four in a row and moved into a tie for ninth place in the Eastern Conference, a half-game behind Charlotte for the final playoff spot. Indiana is seventh.
George Hill scored a season-high 30 points for Indiana, which is close to getting Paul George back from a broken leg.
Boston took control with a 17-4 run that started late in the first quarter and ended midway through the second with a 32-20 lead.
at Washington 113, Sacramento 97: John Wall had 31 points and 12 assists, Paul Pierce scored 17 points, and the Wizards rallied from a 21-point third-quarter deficit. DeMarcus Cousins had 30 points, 21 in the first half, for the Kings before fouling out with 5:34 left. Both teams were without starting forwards. Rudy Gay (left patellar tendon strain) sat for Sacramento and Washington's Nene (personal reasons) missed his second straight.
Brooklyn 94, at Philadelphia 87: Thaddeus Young scored 21 points and the Nets ended a five-game losing streak by defeating the lowly 76ers. Joe Johnson added 15 points for the Nets, who moved within three games of eighth place in the Eastern Conference. Brooklyn had given up 106.6 points a game during its skid.
at Memphis 96, Milwaukee 83: Beno Udrih, starting in place of the injured Mike Conley, had 14 points as the Grizzlies ended a two-game losing streak. Courtney Lee scored 17 points, Jeff Green and Zach Randolph added 15 apiece, and Marc Gasol finished with 12 points, seven rebounds and seven assists. The Bucks lost for the ninth time in 12 games.
at Utah 88, Detroit 85: Derrick Favors scored 26 points for the Jazz, which has won five in a row and 12 of its last 15.