Portland suffered their third consecutive defeat, and fifth in six games, thanks to Carmelo Anthony’s 24 points.
The Lakers were once again without their icon, LeBron James, who was out with a swollen knee.
For the Trail Blazers at la Angeles, Norman Powell had 30 points and Anfernee Simons had 19.
They are still missing star guard Damian Lillard, who is recovering from abdominal surgery, but they will play their next five games at home.
Rookie Tre Mann set a career best with 29 points as the Thunder won consecutive games for the first time since December.
The Pacers led by 17 points in the third quarter, points to Caris LeVert’s 26 points, before Harris scored 10 in the fourth.
Ja Morant led the Grizzlies with 23 points and nine assists, while Knicks standout Julius Randle was tossed in the last minute for a second technical foul after scoring 18 points, 12 rebounds, and nine assists.