PITTSBURGH — If this was Kip Wells' last start for the Pittsburgh Pirates, he'll leave on a good note.

Wells, the subject of much trade talk, outdueled Jason Schmidt as the Pirates beat the Giants 3-0 on Friday night.

"You want to pitch good every time out, whether it's your first (start) or your last," said Wells, who hadn't won since Oct. 1 of last season. "But you take the approach that you try to pitch well every time out and whatever happens, happens. I don't feel like I'm necessarily in a situation where this might be my last start, but you ever know."

Wells (1-5), who missed almost three months to start this season due to March surgery to repair a blocked artery in his pitching arm, tossed seven-plus shutout innings, allowing five hits while walking three and striking out three. He will be a free agent at the end of the season.

"He's a really good pitcher when he throws strikes early in the count," Pirates manager Jim Tracy said. "He was terrific tonight, very challenging with his fastball."

Barry Bonds went 0-for-4 for the Giants, who have lost a season-high five in a row — by a combined eight runs. Bonds, who played with the Pirates from 1986-92 and won two National League Most Valuable Player awards, was greeted with a mixture of cheers and boos each time he came up — about two-thirds boos. The Pirates have not had a winning season since his departure after the 1992 National League Championship Series.

Bonds flied out to left with two outs in the eighth — an inning in which the Giants had the bases loaded and nobody out.

The Pirates matched a season-high by winning their third consecutive game.

Freddy Sanchez had an RBI single and Jose Castillo an RBI double for the Pirates, whose only other three-game winning streak this season was against the Giants. Pittsburgh took the final three of a four-game series June 8-11 in San Francisco.