him and teammate Jon Lester, to commemorate the season. San Francisco Giants (2014–2016) On July 26, 2014, the Boston Red Sox traded Peavy to the San Francisco Giants along with cash considerations for pitching prospects Edwin Escobar and Heath Hembree. This trade reunited Peavy with manager Bruce Bochy. Having worn number 44 throughout his career, Peavy wore jersey number 43, since number 44 is retired in honor of Giants' Hall of Famer Willie McCovey. After losing his first three quality starts as a Giant, including a perfect game through innings, Peavy switched his jersey number from 43 to 22 for good luck; number 22 was his jersey number from Mobile, Alabama. On August 13, 2014, in a 7–1 home win over his former team the Chicago White Sox, Peavy recorded his first career win as a Giant after switching numbers. On August 30, 2014, in a 3–1 home win against the Milwaukee Brewers, Peavy struck out Aramis Ramírez for his 2,000th career strikeout, three days after teammate Tim Hudson got his. He did not allow a hit until the eighth inning to Mark Reynolds. He won the first game of the 2014 NLDS against the Washington Nationals on October 3, 2014. On October 29, 2014, Peavy won his second consecutive World Series ring, despite losing both his starts, after the Giants defeated the Royals, 3–2, in Game 7. Peavy became the second starting pitcher after Don Gullett to win two consecutive World Series championship titles with two teams, one in each league. He is one of nine players in Major League history to win back-to-back World Series championship titles on different teams. (Joc Pederson, Ben Zobrist, Ryan Theriot, Jack Morris, Bill Skowron, Don Gullett, Clem Labine, and Allie Clark) On December 19, 2014, Peavy agreed to a two-year deal worth $24 million to stay with the Giants. He went on to play with San Francisco through the 2016 season; in his three years with the Giants he had a 19–19 record and 3.97 ERA, with 238 strikeouts and 78 walks in 308 innings pitched. He became a free agent on November 3, 2016. Late career Peavy did not pitch in MLB or the minor leagues during the 2017 season. In May 2018, he stated his interest in a comeback. He officially announced his retirement on May 5, 2019. Scouting report Peavy's repertoire included six pitches, although he mostly used a