The defending champions didn't show signs of rust and were well-prepared to face the revenge-seeking Raptors, who lost to Cleveland in last year's conference finals.
Kawhi Leonard scored 29 points, and the Spurs advanced to the Western Conference semifinals by beating Memphis 103-96 on Thursday night to take the series 4-2.
After the road team won each of the first four games, the Celtics won at home in Game 5 to earn a chance to eliminate the Bulls on Friday night in Chicago.
Putting Norm Powell in the starting lineup has changed the playoff fortunes of the Toronto Raptors.
Powell scored a career playoff-high 25 points, Kyle Lowry...