Ross drained 10-of-17 3-point attempts in tying Vince Carter's Raptors franchise record for most points in a single game.
Ross nailed seven treys in the first two quarters, setting the club mark for most 3-pointers in a half, and then added 28 points after the break.
Jonas Valanciunas supplied 17 points with 12 rebounds and Kyle Lowry finished with 11 points and 12 assists as Toronto fell for the first time in three games.
The Raptors lost DeMar DeRozan with a sprained left foot.
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