<P> One perfect game , a special subcategory of no - hitter , has been pitched in Red Sox history . As defined by Major League Baseball , `` in a perfect game , no batter reaches any base during the course of the game . '' Every opposing batter is retired . This feat was achieved by Cy Young in 1904 . Young 's perfect game , pitched on May 5 , 1904 , also was the first no - hitter in Red Sox history ; the most recent Red Sox no - hitter was thrown by Jon Lester on May 19 , 2008 . </P>
when was the last time the boston red sox pitched a no-hitter
May 19 , 2008