The Loogy Lounge

How to evaluate a relief pitcher? — Part I

November 15, 2007 · 6 Comments

The question on your mind is probably: how does one actually evaluate middle relievers? It’s an excellent question, and one that I haven’t quite figured out yet. Part of the reason for starting this blog is to get a better handle on appropriate standards for evaluating talent. Currently, I evaluate middle relievers on a scale from “sucks” (Jeff Ridgway of the 189.00 ERA in 2007) to “gamer” (Hideki Okajima, Rock Star). I’m sure that will evolve somewhat in the next year.

In the meantime, check out U.S. Patent No. 7092847, a method for “evaluating the performance of a relief pitcher in the late innings of a baseball game.” Yeah, the man who brought you the self-stablizing training wheels for a bicycle and the kick-ass water conservation delivery system using temperature-controlled by-pass circuit has turned his engineering prowess to baseball.

Here’s a summary of his baseball patent:

A method of evaluating the performance of a relief pitcher in the late innings of a baseball game in which the pitcher inherits at least one player on base, the method comprising the steps of establishing the number of runs Ri scored by such inherited runners; establishing the number of batters B faced in such innings; evaluating the Relief Quotient “RQ”, where:

RQ = k ⁡ ( Ri + E B ) n

where k is first a predetermined constant selected to scale the RQ to a desired range of magnitudes, n is a second predetermined constant that may be positive or negative and E is a parameter that may be an integer or equal to 0 ; and storing RQ in a tangible medium for subsequent use.

He had me until the “predetermined constant selected to scale the RQ to a desired range of magnitudes.” I welcome anyone who took the GRE math section to explain it to me in the comment. My whole reason for posting this though was to highlight a few of Mr. Storch’s sweet diagram of his patented process (remember, this patent was filed in 2004):

patent_2.jpg

Apparently you need a computer from 1993 to complete the computation. It looks like clip art. Regardless, kudos to Mr. Storch for thinking about the subject more than we have.

Update 1/17/08: Corrected the spelling of Jeff Ridgway’s name.  Yeah, he’s so bad that he doesn’t even deserve the “e.”

Categories: Science of Baseball · post by Gnopple
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