Thunder 107 - 95 Bulls
The win enabled the Thunder to tie the 1976-77 Seattle Supersonics for the franchise record of 13 straight home wins to start the season.
At 21-4, they also have the best record in the NBA.
Playing short-handed, the Bulls (9-16) whittled a 15-point lead to eight with 9:30 left in the fourth quarter, however, Chicago had no answer for Durant down the stretch and he made them pay with his 13th 30-point game of the season.
Durant also racked up nine rebounds, six assists and three steals.
Thunder guard Russell Westbrook added 20 points and 10 rebounds.
Center Joakim Noah paced the Bulls with 23 points and 12 rebounds.
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Spurs 104 - 102 Warriors
Tiago Splitter tipped in Boris Diaw's miss with 2.1 seconds remaining, giving the San Antonio Spurs, playing without guards Tony Parker and Manu Ginobili, and forward Tim Duncan a stunning 104-102 victory over the Golden State Warriors.
The dramatic win capped a 6-1 stretch in which the Spurs played six road games in a 10-day period. The sequence included three back-to-back contests.
The Spurs did not need their Big Three thanks to a 41-13 scoring advantage from their depleted bench.
Marco Belinelli came off the bench to lead the Spurs (21-5) with 28 points. Small forward Kawhi Leonard added 21 points and point guard Patty Mills, starting in Parker's place, poured in 20 points.
Power forward David Lee had a 32-point, 13-rebound double-double for the Warriors (14-13), while Steph Curry matched his career-high with 15 assists to go with 30 points.