Kawhi Leonard had 27 points and 17 rebounds, leading the Toronto Raptors into the N.B.A. finals for the first time with a 100-94 victory over the Milwaukee Bucks on Saturday night.

The Raptors overcame a 15-point deficit and won the series in six games. They will host the Golden State Warriors in Game 1 of the N.B.A. finals on Thursday night.

Pascal Siakam scored 18 points, Kyle Lowry had 17, and Fred VanVleet had 14 for the Raptors, who used a 26-3 run late in the third quarter and early in the fourth to turn the game in their favor and reach the championship round after having repeatedly fallen short against Cleveland.

They needed something more to get further, and they found it the acquisition of Leonard, the most valuable player of the 2014 finals, who was acquired from San Antonio and has carried the Raptors in this postseason.