On Wednesday, October 6, 2010, in Game 1 of the National League Divisional Series, Halladay no-hit the Cincinnati Reds for a 4-0 win at Citizens Bank Park. It was Halladay’s second no-hitter that season, as he threw a perfecto against the Florida Marlins that June.
The first postseason no-no, of course, was the New York Yankees’ Don Larsen’s perfect game in Game 5 of the 1956 World Series against the Brooklyn Dodgers.
The only other pitcher to throw a no-hitter on this date is Matt Kilroy, back in 1886, but it was a regular season match-up. Kilroy, pitching for the American Association’s Baltimore Orioles, no-hit the Pittsburgh Alleghenys for a 6-0 win at Pittsburgh’s Recreation Park.