Madison Kyle Bumgarner (born August 1, 1989), nicknamed "MadBum", is an American former professional baseball pitcher. He played in Major League Baseball (MLB) for the San Francisco Giants (2009–19) and Arizona Diamondbacks (2020–23). Bumgarner won three World Series championships (2010, 2012, 2014) and two Silver Slugger Awards (2014, 2015). He was also selected to four National League (NL) All-Star teams and has the most strikeouts in franchise history by a Giants left-handed pitcher.
Bumgarner is widely regarded as one of the greatest World Series pitchers of all time. For his career, he started four games in five pitching appearances. He posted a 4–0 win–loss record, a World Series record 0.25 earned run average (minimum 20 innings of work), a complete game shutout, a save, and 31 strikeouts in 36 innings pitched. He is also widely regarded as one of the greatest postseason pitchers of all time. For his career, Bumgarner started 14 games in 16 pitching appearances. He posted an 8–3 win–loss record, a 2.11 earned run average, 3 complete games that were all shutouts, a save, and 87 strikeouts in 102+1⁄3 innings pitched.