SAN FRANCISCO — Buster Posey followed Brandon Belt’s leadoff triple in the sixth with a go-ahead double, Jake Peavy won for the second time in six starts, and the San Francisco Giants beat the Cubs 4-2 on Wednesday night to stop Chicago’s six-game winning streak.
Kelby Tomlinson added an RBI double of his own in the sixth against Kyle Hendricks as the Giants ended a three-game slide with their second victory in seven games. Nori Aoki homered for San Francisco.
With their first win in six meetings this month against the Cubs, San Francisco avoided its first six-game skid in the series since 1993-94.
Peavy (4-6) allowed five hits and two runs, struck out three and walked three in 6 1-3 innings to beat the Cubs for the second time in his last six outings against them. He took a 2-0 loss at Wrigley Field on Aug. 9.