Russell Westbrook ties Oscar Robertson with 41st triple-double
Kawhi Leonard had 32 points and 12 rebounds as host San Antonio rallied in the final seconds of regulation before winning in overtime in a matchup of likely first-round playoff opponents.
Gordon Hayward scored 30, and host Utah controlled the game most of the night with a defensive effort that bottled up everyone not named C.J. McCollum.
Danilo Gallinari scored 28 points, and visiting Denver moved a half-game back of Portland for the final playoff spot in the West and a likely first-round matchup with the Warriors.
New Orleans were eliminated from playoff contention, despite 41 points from Anthony Davis and 30 points and 11 rebounds from DeMarcus Cousins.
LeBron James recorded his second straight triple-double, Kevin Love scored 28 points and Cleveland made 18 three-pointers as the host Cavs beat Orlando for the 17th straight time.
The defending champions moved into a tie with the Celtics atop the East.
The teams meet Wednesday with first place and temporary ownership of the top seed and home-court advantage until the NBA Finals on the line.
The win ended a four-game losing streak in which the Pacers slid from a tie for the No. 5 seed in the East to the verge of missing the postseason.
The Nets (19-59) have been buried in last place in the NBA standings for most of the season and not even their recent surge — wins in six of their past nine — has budged them out of the cellar.
All-Star update: A person with knowledge of the plans says the NBA will discuss whether to bring the 2019 All-Star Game to Charlotte, N.C., at its Board of Governors meeting this week.