He is followed by Gaylord Perry ( 17 ) and Juan Marichal ( 13 ) .
Bob Gibson pitched the most post-1956 extra-inning perfect games , with 19 .
Bob Gibson is followed by Gaylord Perry ( 17 ) and Juan Marichal ( 13 ) .
Bob Gibson pitched the most post-1956 extra-inning perfect games , with 19 .