James added eight assists and seven rebounds in the victory -- Miami's 15th straight over Toronto -- with ex-Raptor Chris Bosh contributing 18 points and Chris Andersen lending 13 for a Heat team again playing without stars Dwyane Wade and Ray Allen.
With Indiana routed by red-hot San Antonio on Monday, the Heat (51-22) moved percentage points ahead of the Pacers (52-23) for first place in the East.
Greivis Vasquez paced Toronto with 17 points and DeMar DeRozan had 16 in the loss, which halted the Atlantic Division leaders' three-game win streak.
Jonas Valanciunas finished with a double-double for the Raptors, posting 14 points and 10 rebounds.
Celebrity Breakups and divorces of 2014 [PHOTOS]