PITTSBURGH (AP) – Nick Pivetta pitched one-hit ball for seven innings for his first win since June 24, and the Boston Red Sox scored four runs in the first inning on their way to a 5-3 victory over the Pittsburgh Pirates. The Pirates’ only hit off Pivetta came on Ben Gamel’s two-out single in the first inning on a soft liner to left-center. Pivetta struck out six and walked three while throwing 99 pitches and retiring his last nine batters. The first six Red Sox batters reached in the first inning against Mitch Keller (4-9). He lasted just two innings allowing four earned runs on five hits. He struck out one and walked three. He was pulled after 46 pitches with what the Pirates called right shoulder fatigue.