OAKLAND, California (AP) " Golden State's Kevin Durant thoroughly embarrassed his old Oklahoma City teammates by sinking seven 3-pointers and scoring 39 points as the Warriors strolled to a 122-96 win against the Thunder on Thursday.
Defeat for the Thunder left Cleveland as the NBA's last unbeaten team, as LeBron James led the Cavaliers past Boston.
The highly-anticipated clash of last year's Western Conference Finals revolved around Durant, who had made the big-money move to the Warriors, and he rose to the occasion, with his seven 3-pointers matching a career high.
Russell Westbrook was eager to show he could lead Oklahoma City without Durant, but was held to just 20 points; 17.8 points below his season average.
Golden State's Stephen Curry added 21 points while Klay Thompson rediscovered his 3-point radar and hit four long shots as the Warriors notched a fourth straight win.
Reigning league champion Cleveland emerged as the new-season pacesetter by defeating Boston 128-122.
The Cavaliers have won their opening five games for the first time in 40 years.
LeBron James scored a season-high 30 points, edging within two points of passing Hakeem Olajuwon for 10th place on the NBA's all-time scoring list. Olajuwon had 26,946 points, a total James will likely surpass Saturday in Philadelphia.
Kevin Love scored 26 points, also a season high, while Kyrie Irving added 23 for the Cavaliers, while Tristan Thompson recorded a double-double in the first half, finishing with 15 points and 14 rebounds.
Isaiah Thomas scored 30 points and Avery Bradley had 26 for the Celtics, who played without two starters: center Al Horford (concussion) and forward Jae Crowder (sprained left ankle).
Milwaukee's Giannis Antetokounmpo and Jabari Parker each had 27 points to lead the Bucks past Indiana 125-106.
Indiana had a brief surge in the fourth quarter, closing within nine points, but could get no closer and fell to 0-3 in road games.
Paul George scored 23 points for the Pacers.
Orlando won back-to-back games for the first time this season, as Evan Fournier scored 29 points in a 102-94 win against Sacramento.
An attempted 3-pointer by Nemanja Bjelica on the buzzer went in then out, allowing Denver to hang on for a 102-99 victory at Minnesota.
This story has been automatically published from the Associated Press wire which uses US spellings