The Pittsburgh Pirates used triples from Cole Tucker and starting pitcher Joe Musgrove to build a lead, then got a home run from Jacob Stallings as insurance in a 4-2 win over the host San Francisco Giants on Thursday afternoon. Musgrove (10-12) pitched five shutout innings, and Felipe Vazquez recorded his third save in four days, allowing the Pirates to take three of four in the series and five of seven from the Giants this season. After an RBI double by Jose Osuna gaven the Pirates a 1-0 lead against Giants right-hander Jeff Samardzija in the first inning, Tucker tripled and made it 2-0 in the fourth on Kevin Kramer's sacrifice fly.