Pitching clarification

[Ump29]

Originally Posted by mbyron

I recently called a balk on an illegal jab-type step. The sequence was:

1. Pivot foot comes off rubber and plants on 3B side of rubber.
2. Throw to 1B.
3. Free foot steps toward 1B.

I explained to F1 (he was an adult) that the step to 1B must precede the throw to 1B. Naturally he disagreed. Fortunately, he didn't do the move again, and R2, who was formerly R1, never became R3.

I would balk him for the first step as it was forward of the plate .