Gilgeous-Alexander joined Kevin Durant and Russell Westbrook as the only players in Thunder history to score 50-plus points. Durant did it four times and Westbrook did it five.
Spencer Dinwiddie scored 28 points and Kyrie Irving added 24 as the Mavericks, without Luka Doncic, edged the Thunder 121-115 in Oklahoma City.
Spencer Dinwiddie scored 28 points and Kyrie Irving added 24 points as the visiting Dallas Mavericks beat the Oklahoma City Thunder 121-115 on Thursday.