SAN FRANCISCO — Thairo Estrada and Mike Yastrzemski hit back-to-back home runs in the third inning, and rookie right-hander Keaton Winn had another strong start to lead the San Francisco Giants to a 3-2 victory over the Pittsburgh Pirates on Sunday.
Rookie shortstop Tyler Fitzgerald added three hits for the Giants, who took two of three from the Pirates and finished their longest homestand of the season 6-4. Pittsburgh lost for the 10th time in its past 13 games.
Winn (3-3) held the Pirates to one run over six innings, his line over the past three starts, all victories. Winn walked one, struck out five. He also hit Edward Olivares to start the fifth inning, leading to a run on Rowdy Tellez's RBI double.
Erik Miller and Ryan Walker each pitched a scoreless inning in relief of Winn. Closer Camilo Doval allowed a ninth-inning run, but retired Joey Bart on a groundball with the potential tying and go-ahead runs on base to complete his fifth save.
The Giants relied on stifling performances by their starters on the homestand, which left them 14-15, good for second place in the National League West. They are 3 1/2 games behind the first-place Dodgers. The rotation has a 0.95 ERA over the past seven games, a lifeline for a team that has struggled to score.
Manager Bob Melvin said the Giants' start ''hasn't been great, But to sit here right at .500, or a game below, we know there's a lot more in there. It's not a horrible place to be. No one's really running away with the division, too.''
Pirates right-hander Jared Jones (2-3), making his sixth start in the majors, allowed three runs in five innings. Jones entered with a 2.79 ERA over his first five starts, striking out 39 in 29 innings. But the long ball has been an issue for the 22-year-old. The third-inning homers by Estrada and Yastrzemski were the sixth and seventh that Jones has surrendered.
Estrada hit the first pitch of the inning into the bleachers in left-center for his fourth of the season. Yastrzemski followed by driving a 2-2 pitch over the wall in straightaway center. The Giants had three more hits in the inning and scored a third run on LaMonte Wade Jr.'s no-out sacrifice fly.