OAKLAND, California -- Stephen Jackson scored 15 of his 28 points in the fourth quarter and Marco Belinelli added 22 on Friday to help the Golden State Warriors beat the Boston Celtics 99-89.
Paul Pierce scored 21 points for the Celtics, who now have lost two games in a row for the first time this season.
They had a franchise-best, 19-game winning streak halted the day before by the Los Angeles Lakers.
The Warriors entered the fourth quarter trailing 72-64 but ripped off a 23-6 run to open the frame and take an 87-78 lead with 4:22 remaining after three free throws by Jackson.
Boston cut it to 87-83 on Rajon Rondo's layup with 2:36 to play, but Ronny Turiaf hit six free throws down the stretch and C.J. Watson scored on consecutive possessions to help put away the game.