Damian Lillard led Portland with 30 points, including 11-of-11 from the free-throw line. LaMarcus Aldridge turned in 28 points and 10 boards, but the Trail Blazers fell for the third time in four games.
The Grizzlies shot 51.3 percent from the field and weathered a 39-point fourth quarter by Portland.
Millions of Getty images now available for free via embed tool
Boston schools pull out free condoms over wrapping complaints