 He pitched the first shutout of his professional career on June 9 of that season, a two-hit, 11–0 victory against Boston at Progressive Field, in which he struck out six and allowed two singles and two walks.Masterson finished the 2011 season with a 12–10 record, having career bests in ERA (3.21), innings pitched (216) and home runs allowed (11).On August 4, he victimized the Red Sox for the second time, and also committed one of the rarer feats in baseball.