Memphis, TN – Kevin Durant scored 32 points and hit a 95, in a rematch of last season's Western Conference semifinals.
James Harden tallied 20 points off the bench, helping the Thunder improve to 3-0 despite Russell Westbrook's 0-for-13 shooting effort.
Oklahoma City eliminated Memphis from the postseason in a grueling seven-game series last season, and its 10-for-25 performance from three-point range proved to be the difference on Wednesday.
Memphis shot just 2-for-16 from long range to overshadow double-doubles from Zach Randolph, Rudy Gay and Marc Gasol, who all pulled down 12 rebounds.