Fed question#2, "it shall be called a strike"

[youngump]

Originally Posted by Manny A

And, OBTW, if the called strike is an uncaught third strike, I see no reason why we can't allow the batter to attempt to reach first base if the situation warrants. Where in the rule does it say the batter cannot advance?

Hmmm... what does delivers the ball mean? There's no definition. So if the pitcher reacts to the batter stepping out by having the ball slip from her hand (what you'd normally call a ball) then do we have an uncaught strike on which the batter can advance. It's not what I'd call a delivery but it seems to otherwise meet the rule.