The Thunder swept their regular season series against the Celtics after collecting a 118-112 victory at TD Garden.
OKC also clinched a playoff spot with the victory. Shai Gilgeous-Alexander led all scorers with 34 points for the Thunder.
He also dished out a team-high seven assists.
Chet Holmgren recorded a double-double with 23 points and a game-high 15 rebounds.
Oklahoma City is now 54-and-12. Jayson Tatum led the Cs in scoring with 33 points.
Al Horford recorded a double-double with 18 points and 10 rebounds.
Derrick White chipped in with 22 points.
Boston dropped to 47-and-19.
(Photo by Brian Fluharty/Getty Images)
Photo: Brian Fluharty / Getty Images Sport / Getty Images