Moneyball D-Specialists

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Curtis Granderson
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Sandy - Raleigh's picture
Submitted by Sandy - Raleigh on

Another great read, Doc.

One quibble.  2b/ss/cf do not get 5/5/3 "chances" per game.  That's how many outs per game the positions generate, (in very generic terms).  Unfortunately, I haven't found a definitive source for "precisely" how many outs are attributed to each position, (assists vs. putouts complicates matters), but my own VERY rough breakdown looks like this:  (Outs per 27)

Pitchers: 7 (includes fielding)

Catcher: 0.5 (CS + non K POs)

First Base: 1.0 (assists, plus some for non-assistend POs)

Second Base: 5.0 (assists - some POs)

Shortstop: 4.5 (assists - some POs -- 2Bs actually get more TCs than SS)

Thirdbase: 2.5 (assists - plus some POs)

Leftfield: 2.0 (putouts -- assist totals are almost negligible)

Centerfield: 2.5

Rightfield: 2.0

==================

It's not perfect, but that's a fair estimate of the OUT distribution.  While SS is a harder position, second actually gets more total chances, (800 for 2B, 700 for SS in round numbers).  These are based on TEAM totals.

But, only 30% of BIPs turn into outs.  So, ignoring the pitcher contribution, (7 outs), about 20 outs per game are generated by the defense.  Double plays, HRs and sacrifices mess things up a bit, but with teams generating 9.2 hits per game, you're talking about (in round numbers), 28 or 29 chances (depending on how you count it), for every 20 defense-outs.  So, the CHANCES per game for the MIs is actually around 7.  I also suspect that a significant portion, (perhaps even the MAJORITY) of the value for OFs, isn't in outs generated, but in base-suppression -- turning doubles into singles the primary.   (Does UZR - or any of the other defensive metrics - adjust for non-HR XBH variance?)

Uncle Ted's picture
Submitted by Uncle Ted on

Plus there needs to be some modifer for the outfield outs being worth more because they are more likely doubles or triples rather than the singles that infielderrs typically prevent.

jemanji's picture
Submitted by jemanji on

Russ Branyan missed a fairly easy grounder that went into the RF corner for a double yesterday ... the corner IF's are diving for doubles in one direction and for singles in the other...

While OF's can and do make a lot of their 'marginal' catches in front of them...

Still, I wouldn't quibble a bit that more of an OF's 'marginal' catches are in the gaps rather than on balls they could keep in front of them ...

jemanji's picture
Submitted by jemanji on

5 outs, not chances, for the MI's.  Leading to a somewhat unknown number of chances.

How many 'marginal' chances a CF-SS-2B gets is the $64,000 question.  How many opportunities does a J.J. Hardy get to snag a ball that would have scooted by Ronnie Cedeno?

Your back-of-the-envelope going off of the .300 BIP makes sense, of course, but it's still difficult to tell how many balls that fall in that little geometrical ray of territory created by two extra strides...

At any rate, there have got to be a lot more balls falling in the "marginal" CF, SS, and 2B areas, simply because the entire sectors are so much more heavily trafficked...

SABR Matt's picture

Yuniesky Betancourt was held out of the line-up tonight due to "an organizational decision" that Zduriencik refused to comment on.  MLBTradeRumors is all over this as is Baker...there is talk of a deal for either Freddy Sanchez or Jack Wilson to the Mariners being close to complete...chances are it would involve Yuni and one other prospect.  Your thoughts?

jemanji's picture
Submitted by jemanji on

how 'bout yours?

At D-O-V we immediately opined that a trade for a SS was the necessary implication of Betancourt's demise, since Cedeno isn't an AL starter at the position and since Zduriencik can be confidently presumed to agree with this...

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