In his major league debut on July 22, he allowed two earned runs in 5 innings to the Seattle Mariners and was charged with a loss. Gabbard's first major league win was on September 5 against the Chicago White Sox. Gabbard pitched seven shutout innings, surrendering three hits and striking out six in a 1-0 Red Sox win.
In his major league debut on July 22nd, Gabbard allowed two earned runs in five innings to the Seattle Mariners and was charged with a loss. His first major league win came on September 5th against the Chicago White Sox, where he pitched seven scoreless innings, allowing three hits, and striking out six batters in a 1-0 Red Sox victory.