Danilo Gallinari (23 points), Shai Gilgeous-Alexander (20), Chris Paul (18), Dennis Schroder (18) and Steven Adams (15) each shot better than 50 percent from the field.
Meanwhile, Terrance Ferguson hounded Harden into a 5-of-17 shooting night, and this game was over by the end of the third quarter.
When it was over officially, Westbrook didn’t make his customary quick exit. He hustled to the far baseline, gave hugs to Thunder chairman Clay Bennett and the widow of Thunder partner Aubrey McClendon, then walked off the court to more roars.
A perfect end to a perfect night.