Leonard, who missed the last two games with a sore ankle, also added 11 rebounds for the Raptors, who have won five straight since losing to Milwaukee on October 29.
Pascal Siakam scored 21 points, Serge Ibaka had 14 points and 14 rebounds, and Kyle Lowry added 16 points and eight assists for the Raptors.
Leonard started slowly but then found his form. The two-time all-star scored 10 points in the second quarter and 10 in the third. He made a clutch three-pointer in the fourth after Sacramento had taken a seven point lead, 106-99.
Willie Cauley-Stein and Buddy Hield scored 24 points apiece for Sacramento. De'Aaron Fox added 20 points, and second overall draft pick Marvin Bagley had 13.
The Kings have lost two straight since winning five in a row.
Ben Simmons flirted with a triple double, finishing with 16 points, 10 rebounds and eight assists for the 76ers, who were 6-0 at home and 0-5 on the road coming into Wednesday's contest.
"We finally put it together," said Australia's Simmons.
Philadelphia had lost all their away games by an average of 15.2 points. They had also lost eight consecutive contests in Indiana dating back to 2013.
"I'm excited that we got our first road win this year," coach Brent Brown said. "We were pleased to get a win, especially after a performance we wanted to forget."
The win came three nights after Philadelphia got clobbered in Brooklyn, losing by 25 points.
Embiid collected his league-high 11th double-double and Dario Saric scored a season-high 18 points by going four for six on three-pointers.
Like the 76ers, the Pacers were also coming off a loss, 98-94 to the Houston Rockets on Monday.
Victor Oladipo scored a season high 36 points, including 24 in the first half. He added seven assists and three blocks.
- Carried the load -
Whiteside carried the load in a 95-88 Heat win, as Miami made do without veteran star Dwyane Wade who was absent for what the team called personal reasons.
Wayne Ellington scored a season-high 20 points and Justise Winslow added 16 for Miami, who had lost nine straight regular season games to the Spurs and 11 straight when counting the 2014 NBA finals.
The two teams are a long way from what they were when the met in back-to-back championship series in 2013 and 2014. The Heat, then featuring LeBron James, triumphed in 2013 before the Spurs, then led by Tim Duncan, turned the tables in 2014.
Australian Patty Mills came off the bench to score 20 for San Antonio but the Spurs dropped their second straight. DeMar DeRozan added 18 points on six-of-15 shooting but LaMarcus Aldridge scored just six points, connecting on two of 14 attempts from the field.
In the late game, James scored 24 points, 10 assists and nine rebounds as the Los Angeles Lakers held on to beat the struggling Minnesota Timberwolves 114-110 at Staples Center.
The Minnesota loss spoiled a superb performance from Derrick Rose who finished with 31 points. Rose also missed a three-pointer at the end fourth which would have given the Timberwolves the lead.
Jimmy Butler added 24 for the Timberwolves, who lost their fourth straight and remain winless on the road.
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