Dropped Third Strike

[bob jenkins]

Originally posted by umpguy2190
Can someone explain how the dropped third strike rule works.
This rule confuses me for some reason. Thanks!

Batter can run if either (or both): (1) First base is unoccupied; (2) Two are out.

Historically: Batter could run after any third (or last)strike. Since catchers played back from the plate batters often (relatvely) made first. As catchers moved up, and wore gloves, the play became "too routine." So the rule was changed so the batter could run only on a third strike not caught. Catchers realized that if, with a runner on first, they dropped the ball on purpose, the defense could get an easy double play. So, the rule was changed again so the batter could run only when a double play wasn't possible.