Cy Young, Charlie Robertson, Lee Richmond, Jim Bunning, Catfish Hunter, and Dennis Martinez all did it. Harvey Haddix kept it up for twelve innings, only to lose it in the thirteenth. Game 5 of the 1956 World Series saw Don Larsen hurl the only one ever in post-season play. 
Cy Young, Charlie Robertson, Lee Richmond, Jim Bunning, Catfish Hunter, and Dennis Martinez all did it. Harvey Haddix kept it up for twelve innings, only to lose it in the thirteenth. Game 5 of the 1956 World Series saw Don Larsen hurl the only one ever in post-season play. FTP, name this pitching achievement, getting 27 outs without allowing a single baserunner.
Cy Young, Charlie Robertson, Lee Richmond, Jim Bunning, Catfish Hunter, and Dennis Martinez all did it.
{Perfect Game}