PORTLAND, Ore. (AP) - Greg Oden had 11 points, 10 rebounds and three blocks in his home debut for Portland and the Trail Blazers built a 30-point, first-half lead in a 116-74 victory over the Chicago Bulls on Wednesday night.

Oden, sidelined all of last season by a knee injury after being drafted first overall, entered the game to a standing ovation with 4:28 left in the first quarter, and dunked 21 seconds later. The 7-footer had his third double-double in four games after missing six of Portland's first seven games because of foot injury.

Brandon Roy scored 20 points to help Portland improve to 6-2 in its last eight and 7-5 overall. Chicago has lost four of its last six to fall to 5-7.

Portland raced to a 16-3 lead and set season highs points in a half (62) and game.

Roy, playing just 27 minutes, was one of six Portland players to score in double figures. Joel Przybilla had a season-high 14 points and added nine rebounds.

The game featured the No. 1 overall picks the last two years, Oden from 2007 and Chicago guard Derrick Rose from 2008. It turned out to be a mere sidebar because of the score. Oden played only 17 minutes, while Rose was 1-of-8 from the field and scored a season-low six points, his first single-digit performance in the NBA.

Portland led from the first basket, a 3-pointer by Nicolas Batum. The Blazers built on the 16-3 lead with a 9-0 run later in the first quarter to take a 34-13 advantage into the second quarter. Led by Roy and Oden in the second quarter, the Blazers took a 62-32 lead before settling for a 25-point advantage at halftime.

The third quarter was more of the same. Leading 68-47 midway through the quarter, Portland put the game away with a 14-0 run, highlighted by a lob pass from Roy to LaMarcus Aldridge for a dunk. The Blazers led by as many as 47 points.

Andres Nocioni led Chicago with 13 points.

Notes: Chicago forward Luol Deng missed the game because of a groin injury. He was hurt Tuesday night against the Los Angeles Lakers. His status is day to day. ... The Blazers, 4-0 in the Rose Garden, are one of three teams without a loss at home this season. The others are Utah and Cleveland. Foul trouble plagued Chicago's post players during the first half, as Joakim Noah had five fouls, Drew Gooden three. ... The game was Chicago's second on a seven-game trip.

(Copyright 2008 by The Associated Press. All Rights Reserved.)