Jefferson's accurate foul shooting produced ties that sent the game into a first and then a second overtime period while Paul Millsap connected on key 3-pointers throughout the extra time.
He finished with 34 points for the Jazz, who notched their first road win in five tries in the young season.
DeMar DeRozan pumped in game-high 37 points for the Raptors, who blew an 11-point lead late in regulation en route to the loss.
Video of Victoria’s Secret models trying to 'twerk' hits Instagram
Ohio crash that killed two caught on camera [VIDEO]