PISTONS 106, 76ERS 85: Rasheed Wallace scored 24 of his 29 points in the second half, helping defending champion Detroit pull away at home. The Pistons will host Game 2 in the best-of-seven series Tuesday.
Allen Iverson had 30 points and 10 assists and Webber scored 27 points for Philadelphia.
The 76ers built a 16-point lead in the first quarter before Detroit went ahead for good late in the second, during which Antonio McDyess scored 13 of his 15 points.
Detroit's Tayshaun Prince finished with 23 points, Richard Hamilton had 17 and Ben Wallace tied a Pistons playoff record with seven blocks and snagged 10 rebounds.
Philadelphia's Samuel Dalembert had 10 points and a season-high 18 rebounds.
CELTICS 102, PACERS 82: In Boston, Raef LaFrentz set a club playoff record by hitting all five of his three-pointers as the Celtics rolled over Indiana in their playoff opener.
Boston outscored the Pacers 39-11 in the second quarter and led 57-31 at halftime. Game 2 is tomorrow, also in Boston.
LaFrentz led the Celtics with 21 points. The Pacers were led by Stephen Jackson with 25 points.
SUPERSONICS 87, KINGS 82: Ray Allen scored 28 points and Seattle center Jerome James added 17 points and a career-high 15 rebounds, leading the host SuperSonics over Sacramento in Game 1 of their first-round playoff series.
The Sonics lost a 21-point second-half lead but held on with big baskets in the closing seconds by Allen and James.