Regardless of the level of competition or respective league, still a big accomplishment ...
http://espn.go.com/new-york/story/_/id/10722263/mike-delio-strikes-all-21-batters-pitching-perfect-game
http://espn.go.com/new-york/story/_/id/10722263/mike-delio-strikes-all-21-batters-pitching-perfect-game