Bryan Reynolds homered, Adam Frazier drew a bases-loaded walk to force in the go-ahead run in the seventh inning when Pittsburgh scored three times without a hit, and the Pirates beat the San Francisco Giants 6-4 on Friday night. Gregory Polanco added an RBI triple for Pittsburgh, which snapped a four-game skid. It was 3-all when Dominic Leone (2-1) walked Jacob Stallings leading off the seventh and Kevin Newman reached on a fielder's choice when shortstop Thairo Estrada's throw to second was late.