MEMPHIS, Tenn. -- Center Marc Gasol posted a double-double with a career-high 33 points and 13 rebounds as the Memphis Grizzlies defeated Indiana 95-83 Wednesday night at FedExForum to prevent the Pacers from claiming the last playoff spot in the Eastern Conference.

The Grizzlies (55-27) also helped themselves, moving up to the fifth seed in the Western Conference and a first-round matchup with the fourth-seeded Portland Trail Blazers.

Portland received the higher seed by virtue of winning the Northwest Division, but with a record of 51-31, home-court advantage will belong to Memphis.

Grizzlies power forward Zach Randolph finished with 18 points and nine rebounds. Forward Jeff Green scored 14 points and backup point guard Nick Calathes had eight points, six rebounds, six assists and four steals. Reserve center Kosta Koufos added six points and nine rebounds.

The Pacers (38-44) were led by guard C.J. Miles, who scored 26 points. Guard George Hill finished with 20 points, six assists and two steals.

Indiana forward Paul George left the game in the fourth quarter with a sore left calf. He scored two points in 15 minutes.

Down 13 at halftime, the Pacers cut the lead to seven in the third quarter, only for Memphis to carry a 73-61 advantage into the fourth quarter. Indiana sliced the deficit to 81-74 with 6:01 left on two free throws from reserve guard Rodney Stuckey (11 points, four assists) but never pulled closer.

The Pacers shot 41 percent from the field (32 of 78) and Memphis shot 47.4 percent (36 of 76). The Grizzlies had a 48-36 rebounding edge and won points in the paint 48-32.

Indiana led by as many as eight points in the first quarter, but Memphis outscored the Pacers 32-17 in the second quarter and led 54-41 at halftime. Gasol, who played all of the first quarter and 19 minutes total, had 19 first-half points and eight rebounds.

Miles led Indiana with 18 first-half points on 7-of-12 shooting from the floor, including 4-for-7 from 3-point range.

The Grizzlies scored 10 points off seven first-half Indiana turnovers and outrebounded the Pacers 27-16.

NOTES: Indiana won its sixth straight game Tuesday night, defeating Washington 99-95 in double overtime. C Roy Hibbert only scored six points on 3-of-10 shooting from the field but had 12 rebounds and three blocked shots and was still receiving praise from Pacers coach Frank Vogel. "When your shot's not falling, you gotta find other ways to help your team win and there's no better example of that concept than what Roy Hibbert did last night. The three hustle plays he made ... we're not here talking about a chance to make the playoffs tonight without those three plays," Vogel said. ... Grizzlies PG Mike Conley (right foot sprain) and swingman Tony Allen (left hamstring strain) again sat out Wednesday.