George Gervin's 18-foot jump shot with five seconds left gave the San Antonio Spurs a 95-93 victory over the Seattle SuperSonics in the opener of their best-of-seven NBA playoff series last night in Seattle.

Gervin's basket over Bill Hanzlik stopped Seattle's fourth-quarter comeback. San Antonio led, 78-61, going into the final period.

Gervin led all scorers with 31 points. Teammate Mike Mitchell had 30 and Mark Olberding 17.

Jack Sikma led the SuperSonics with 26 points, followed by Lonnie Shelton's 20 and Gus Williams' 17.

The teams will play Game 2 in the Kingdome tonight.

After Gervin's basket, Seattle had one more chance. Shelton attempted to inbound the ball to 7-foot-2 James Donaldson near the basket, but Donaldson never got hold of the ball.

The Spurs, Midwest Division champions, trailed at the half, 45-44, but took advantage of the absence of Williams in the third quarter to increase their 17-point advantage going into the final quarter.

Williams limped off the court with a leg cramp 38 seconds into the second half. He didn't return until 3:29 left in the third quarter and by that time, San Antonio had gone from its one-point deficit to a 68-56 lead.

San Antonio outrebounded Seattle, 43-41, with Mitchell leading the Spurs with 11 rebounds. Sikma had a game-high 12 rebounds.