[IBL] wiki update

[Sean Sweda]

On Mar 2, 2014, at 4:49 AM, Sean Sweda wrote:

> I've added the complete defense and pitcher ratings to the wiki:
> 
> http://wiki.ibl.org/dokuwiki/doku.php/ibl:2014_defense
> http://wiki.ibl.org/dokuwiki/doku.php/ibl:2014_pitrat
> 
> I'm still working on a few things but I expect to have at least partially complete cards ready for error-checking by next weekend.
> 
> Sean
> 

I've had a couple questions about the catcher arm ratings.  The first thing to keep in mind is that you can't look at raw CS% because all CS where the pitcher had an assist (i.e. pickoffs) are removed.  Additionally, this year changed how ratings that depend on the pitcher/catcher battery combo (sb & wp/pb) are calculated.  In the past catchers were assigned an arm rating based purely on their cs%, but now they are adjusted two factors:  1) how the same pitchers did with other catchers, and 2) cs% of all pitchers caught weighted by playing time.  The end result is fairer, but you can no longer assume that if a catcher has a higher cs% than another that he will end up with an equal or better arm rating.  For example, Russ Martin has a -3 arm with a 0.3718 cs% (29cs/49sb) but Yadier Molina only is -2 with 0.4222 cs% (19cs/26sb).  This is because the pitchers that Martin caught had a weighted avg cs% of 0.2123 and those pitchers only managed a 0.0612 cs% (3cs/46sb!) with non-Martin catchers.  Molina's same numbers were 0.4304 and 0.3200 (8cs/17sb).  When I have more time I'll write up a more detailed explanation, but I hope that this helps clear up any unexpected results in the ratings.

Sean