SEATTLE, May 3 (Ticker) -- Rashard Lewis flashed his All-Star form at just the right time for the Seattle SuperSonics.

Lewis scored seven of his 24 points in a critical 80-second span of the fourth quarter as the SuperSonics advanced to the Western Conference semifinals for the first time in seven years with a 122-118 victory over the Sacramento Kings.

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The third-seeded SuperSonics had seven players in double figures as they closed out the sixth-seeded Kings in five games and continued their surprising season. They await the winner of the San Antonio-Denver series.

Playing in his first postseason, Lewis had been inconsistent throughout the series. After making 8-of-13 shots in the opener, he made just 9-of-34 in the next three games, refusing to talk to the media after Seattle's lone loss.

The SuperSonics appeared to be headed for another loss, falling behind by 10 points in the third quarter before narrowing the deficit to 93-90 entering the final period. A 7-0 spurt fueled by Nick Collison - who had 15 points and nine rebounds off the bench - gave Seattle the lead for good.

A free throw and layup by Mike Bibby, who had 35 points and 10 assists, pulled the Kings within 106-104 before Lewis went to work.

The 6-11 forward threw in a baseline hook, sank two free throws and hit a 3-pointer for a 113-104 lead with 3:29 to play. Lewis had made just 2-of-10 from the arc in the first four games but drilled 3-of-5 in the clincher.

The Kings continued to battle and closed to 120-118 with 36 seconds to play on a 3-pointer by Peja Stojakovic, who scored 38 points. The Sonics went to All-Star Ray Allen, who drove past Maurice Evans and through a pair of big men for the clinching layup with 12 seconds remaining.

Allen scored 30 points and Antonio Daniels added 14 off the bench for Seattle, which shot 56 percent (42-of-75) from the field.

Brad Miller had 14 points and 11 rebounds for the Kings, who were eliminated in the opening round for the first time since 2000.

Sacramento lost guard Cuttino Mobley to a sprained ankle in the first half but got a big effort from Evans, who scored 13 points on 5-of-5 shooting and did his best in defending Allen.