MLB Bday

When I was a boy living in North Dakota in the 50's I collected baseball cards. It was SO cool when I found out that Mickey Mantle and Juan Marichal had the same birthday that I did. Fast forward 55 years and we have:

Birthday:
 10/20 or Oct 20

You can also enter a team name or a player's first or last name. For the mathematically inclined see The MLB Birthday Paradox.