Matt Chapman homered for the third straight game, this one a three-run drive during an eighth-inning rally, and the San Francisco Giants spoiled a solid start by Pittsburgh Pirates rookie Paul Skenes to surge to a 7-6 win on Thursday. Chapman went deep off Hunter Stratton (1-1), and Brett Wisely delivered a go-ahead single off Aroldis Chapman five batters later as the Giants overcame a big deficit for the second time in less than 24 hours.