Thunder 107, Mavericks 101: Russell Westbrook hit the tiebreaking jumper with one minute remaining to cap a 35-point effort as visiting Oklahoma City completed a four-game season sweep of Dallas.

Kevin Durant scored 19 of his 31 points in the final quarter and Serge Ibaka had 18 points and 16 rebounds for the Thunder, who have won 11 of 13 games and are one game behind the San Antonio Spurs for the top spot in the Western Conference.

Dirk Nowitzki scored 23 points and Vince Carter added 18 for the Mavericks, who lost for just the second time in seven outings.

The Thunder had a six-point lead with less than three minutes to play before Carter scored on a basket and Nowitzki hit four free throws to knot the score at 101 with 1:20 remaining. After Westbrook hit the go-ahead basket, Thabo Sefolosha hit a turnaround jumper with 12.5 seconds left and Durant hit two free throws with 2.2 seconds remaining.

Westbrook had 16 first-half points and Oklahoma City led 50-49 at the break. Dallas opened the third quarter strong and took a 61-56 lead before the Thunder rebounded and had a 73-72 advantage entering the final stanza.

GAME NOTEBOOK: Oklahoma City has defeated Dallas six straight times in the regular season and eight of the last nine. … Mavericks G Roddy Beaubois left with a broken left hand and will be sidelined indefinitely. … Dallas hit all 16 of its free throws and Oklahoma City was 24-for-30.