Posted by MikeT23 on 5/8/2013 4:53:00 PM (view original):
WifS has said pitches are weighted from 1-5. From what I've seen, it is minimal.
Can't find the source, but will keep looking.
I believe I've read that, in addition to being weighted, (albeit slightly as you point out), they are also averaged.
So then no individual pitch is thrown but rather an average of all the pitches 1-5 weighted in what ever fashion WIS does it.
Although this does fly in the face of the idea put forth elsewhere that a catcher with a great PC rating reduces the chances a "bad pitch" is thrown (paraphrased). I always assumed that meant that if a Pitcher had P1-5 of 90-80-70-60-30. the 30 would be "shook off" by the catcher so to speak.
Perhaps I just misunderstand this, but can confirm that 10 points of PC is still pretty close to a .125 reduction in ERA. So IDK how to reconcile the two, unless the weight given to the pitches are somehow tied to the catcher's PC rating, but that seems rather convoluted.