The Toronto Raptors have added a half-game to their lead in the NBA's Eastern Conference by winning their sixth in a row.
DeMar DeRozan scored 27 points and Kyle Lowry added 22 as the Raptors got past the Heat, 115-112.
Serge Ibaka had 14 points and 10 rebounds in helping Toronto improve its league-leading home record to 24-4.
The Raptors are 40-16 overall, giving them a one-game edge over Boston in both the East and Atlantic Division races.
Toronto at Chicago, 8 p.m.