Philadelphia ace Roy Halladay has thrown the 20th perfect game in major league history, delivering the marquee performance of his career in a 1-0 win over the Florida Marlins on Saturday night.
It was the second perfect game in the majors this month alone, Dallas Braden doing it for Oakland against Tampa Bay back on May 9. It's the first time in the modern era that there were a pair of perfectos in the same season.