My favorite obscure baseball fact is:

The longest professional baseball game took place in 1981 between the Rochester Red Wings and the Pawtucket Red Sox.
The game set a record by lasting 33 innings and spanned over eight hours, played across two separate days.

Here’s a great youtube video about this: Here is the [URL='https://www.youtube.com/watch?v=StqRU1nJmn4'] link[/URL].