Kyle Lowry scored 10 of his 19 points in the fourth quarter, James Johnson had 15 points and 10 rebounds and the Toronto Raptors won their fourth straight meeting with the Boston Celtics 109-96 Saturday night, snapping a season-high four-game losing streak.
Lou Williams scored 19 points and Jonas Valanciunas and Amir Johnson each had 15 to help the Raptors improve to 6-0 against Atlantic Division opponents and avoid losing consecutive home games for the first time since March 2014. Toronto is 15-4 at home this season.
Kelly Olynyk scored 23 points and Avery Bradley had 17 for the Celtics, who wrapped up a three-game trip with their ninth loss in 11 games. Boston, which lost in overtime at Indiana on Friday night, was playing for the third time in four nights.
Jared Sullinger scored 13, Marcus Smart had 12 and Brandon Bass 10 for the Celtics, who fell to 2-4 on the second night of back-to-backs.
Celtics forward Jeff Green was inactive for the second straight night. The Boston scoring leader was pulled from the starting lineup minutes before Friday's loss to the Pacers and sent home amid reports of a pending trade to Memphis.
Trailing by 17, Boston opened the fourth with a 12-3 run, cutting it to 85-77 at 8:56. Lowry scored five points as the Raptors regained control with a 12-1 run over the following four minutes, putting the game out of reach.
Toronto started the game by missing 10 of its first 13 field goal attempts and trailed 26-19 after one, the ninth time in 11 games they've faced a deficit at the end of the first. The Raptors have not led after one quarter since Dec. 28 at Denver.
Williams scored eight points in the second and Amir Johnson added six as the Raptors outscored Boston 28-17 to lead 47-43 at halftime.
Boston led 55-53 after a jump shot by Sullinger at 8:47 of the third, but Toronto responded with a 23-6 run over the next six minutes, with the Celtics calling timeout after a basket by Lowry put the Raptors up 76-61 at 2:35. James Johnson scored 10 points in the third and Valanciunas had eight as Toronto took an 82-65 lead into the fourth.
Celtics: F Jae Crowder made his second straight start. ... G Jameer Nelson (right ankle) missed his fifth straight game. ... Boston fell to 4-12 on the road.
Raptors: James Johnson replaced Landry Fields in the starting lineup. ... Terrence Ross has made at least one 3-pointer in a career-high 13 consecutive games. ... Toronto is 14-0 when holding opponents below 100 points. ... Actress Susan Sarandon attended the game.
Celtics: Host Pelicans on Monday night.
Raptors: Host Pistons on Monday night.