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ZiPS Projections for Gordon, Teahen

2009 ZiPS Projections for Alex Gordon and Mark Teahen

Star-divide

Devil_Fingers actually asked for these last month, but I didn't see (and my little Google-whoring script isn't set up to pick up Symborski). I ran into the request by random chance and figured I'd go ahead and post them, better six weeks late than never. I'm not entirely sure how SB Nation's interface will treat preformatted text, so this could very well end up in an disastrous misch-masch of HTML and Math-a-Bits Cereal.

ZiPS Projection - Alex Gordon (3B)
--------------------------------------------------------------------------
              AB   R   H  2B  3B  HR  RBI  BB  SO  SB   BA  OBP  SLG  OPS+
--------------------------------------------------------------------------
2009         525  72 136  36   3  18   64  59 124  11 .259 .342 .442  104
--------------------------------------------------------------------------
Top Offensive Comps:  Roy Howell, Grady Hatton

ODDIBE

Offense %
STAR    23
AVG     55
REP LV  95

OPS+    %       OBP     %       3B      %       Hits    %
>160    0       >.400   2       >10     0       >200    0
>140    3       >.375   14      >5      16      >150    16
>130    9       >.350   44
>120    20      >.325   78      2B      %
>110    38      >.300   94      >45     12
>100    61                      >30     79
>90     81
>80     91
>60     98

BA      %       SLG     %       HR      %       SB      %
>.350   0       >.550   2       >50     0       >70     0
>.325   1       >.500   12      >40     0       >50     0
>.300   7       >.450   41      >30     4       >30     0
>.275   27      >.400   80      >20     34      >10     50
>.250   64      >.350   96      >10     96

(Based on Projected PA)
ZiPS Projection - Mark Teahen (RF)
--------------------------------------------------------------------------
              AB   R   H  2B  3B  HR  RBI  BB  SO  SB   BA  OBP  SLG  OPS+
--------------------------------------------------------------------------
2009         562  79 153  33   6  15   65  58 127   9 .272 .342 .432  102		
--------------------------------------------------------------------------
Top Offensive Comps:  John Stone, Willie Kirkland

ODDIBE

Offense %
STAR    23
AVG     48
REP LV  88

OPS+    %       OBP     %       3B      %       Hits    %
>160    0       >.400   2       >10     12      >200    0
>140    2       >.375   12      >5      63      >150    60
>130    6       >.350   42
>120    16      >.325   79      2B      %
>110    34      >.300   96      >45     5
>100    60                      >30     65
>90     81
>80     93
>60     100

BA      %       SLG     %       HR      %       SB      %
>.350   0       >.550   2       >50     0       >70     0
>.325   2       >.500   8       >40     0       >50     0
>.300   11      >.450   36      >30     2       >30     3
>.275   47      >.400   79      >20     17      >10     38
>.250   85      >.350   97      >10     84

(Based on Projected PA)

As a side note, "Star" refers to finishing in the top 20% of starters at the position in RC/27.

3 recs  |  Comment 80 comments |

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Thanks for the info, Dan

I love ZiPS and thanks for giving us a sneak peak.

The immoderate moderator

by NYRoyal on Jan 2, 2009 10:27 PM EST reply actions  

Teahen's projections are looking pretty good

Not great, but pretty good. Probably a little better than I expected.

ZiPS: .272/.342/.432
Chone: .272/.341/.426

It’s amazing how similar those two projections are.

The immoderate moderator

by NYRoyal on Jan 2, 2009 10:31 PM EST reply actions  

Dan, a quick question for you

What are your thoughts on the other projection systems? My feeling is that ZiPS, PECOTA and Chone are the best, with Bill James and Marcel lagging well behind. Do you agree? And do you have any thoughts on the strengths and weaknesses of PECOTA and Chone?

The immoderate moderator

by NYRoyal on Jan 2, 2009 10:33 PM EST reply actions  

Projection Systems

That’s probably fairly accurate, though I would hardly call Marcel “well” behind. Marcel gets the basic part of a good projection right, which is also the most important part – determining the “current” level of ability of a player in terms of statistics, which is a necessary, if rather abstract step.

The James projections are behind and it’s very difficult to exactly ascertain why as it’s probably the most secretive system as to its construction. Hell, we don’t even know who

is responsible for the projections. Bill James’ name has been used quite often as a brand name since the mid-90s STATS in particular loved to attach the Bill James name to books in which James had very little input. The problem with them, at least through last year, is that they tend to be too optimistic. Looking at James projections, it’s not uncommon for for positions to have between 2/3 and 3/4 of starters to hit better than the previous year’s average for a starter (same goes with pitching projections).

ZiPS, PECOTA, and Chone are all well-constructed and there’s really not a lot of difference between them. My belief is that what makes these systems most useful is what they actually provide outside of the basic projection. Projections aren’t useful as numbers in an of themself, but a mean to answer questions. So BP does percentiles, Chone projects defense, and I’m moving more and more towards presenting projections as a set of probabilities and provide projections in a format for Diamond Mind players to play with. I think more and more you’ll see projections be in competition based more on the bells and whistles that are provided than simply the RMSE of their mean projections.

It would be surprising if those 3 systems were all that varied in results. Smith, Silver and I are all familiar with the same sabermetric research of the last 25 years right up until today and basing our systems on the same data from baseball history. Nate and I both majored in economics and while I’m not sure what Sean studied in college (he went to Vassar), I seem to recall having a discussion about von Mises with him, so he likely studied something related. So, it’s not surprising that our systems would generally be quite in tune with mostly the same data and similar training on dealing with that data.

We’re probably not too far from as good as we can get in a statistical system without something like, say, some serious biomechanical data.

--
Dan Szymborski
dan@baseballprimer.com

by D.Szymborski on Jan 2, 2009 11:48 PM EST up reply actions   1 recs

Thanks very much for the thoughtful response

It is easy for someone looking at these projections to just look at the bottom line and not look beyond that. But it is clear from everything I read from you, Smith and Silver about these projections that what is most important is the deeper information. Silver, for instance, says that every projection has to bee seen as a range of possibilities, as opposed to a specific projection of a .335 OBP or 28 HR’s.

Thanks again for the info and your insight. Do you have a schedule in mind for the roll out of the team ZiPS, and do you have any idea when the Royals projections will be out?

The immoderate moderator

by NYRoyal on Jan 3, 2009 1:12 AM EST up reply actions  

Schedule

Don’t really have one in mind. I don’t have a big file that I’m slowly giving out; projections get posted pretty much as I run them. A general rule is if the public doesn’t have a ZiPS projection, I don’t have it either.

--
Dan Szymborski
dan@baseballprimer.com

by D.Szymborski on Jan 3, 2009 10:30 AM EST up reply actions  

if the public doesn’t have a ZiPS projection, I don’t have it either.

Well thank you very much for giving us these. What would we do in the offseason without projections?

WTF, self?

by minda33 on Jan 3, 2009 1:50 PM EST up reply actions  

Couple of notes

Gordon and Teahen have exactly the same OBP and SLG through their career so far, so predictions will be similar.

Also, I would like to see how Ross Gload and Coco Crisp end up being projected since both have a lifetime wOBA within .002. If people are expecting offensive help from Crisp they will disappointed. His stolen base success rate 72% is just 1% above the break even point. His defense will help and creates some competition, but isn’t going to help the Offense much.

by Jeff Zimmerman (TucsonRoyal) on Jan 2, 2009 11:58 PM EST reply actions  

Crisp/Gload

I projected Crisp back when the trade was made and had him projected to 267/327/380, OPS+ of 85 for 2009. I haven’t done Gload yet, but just ran him and get 272/319/381, OPS+ of 83. ZiPS only gives Gload a 12% to be league-average at 1B. It’s really too bad about Gload, the guy only really gets a chance well after his best years.

--
Dan Szymborski
dan@baseballprimer.com

by D.Szymborski on Jan 3, 2009 12:16 AM EST up reply actions  

What we need to to figure out ...

If a outfield of Teahen – Dejesus – Guillen (more O, less D)

will be better then one of Dejesus – Crisp – Guillen (less O, more D).

by Jeff Zimmerman (TucsonRoyal) on Jan 3, 2009 12:41 AM EST up reply actions  

How do you figure

Teahen Dejesus-Guillen is a better defensive outfield than DDJ-Crisp-Guillen?

It takes 46 muscles to frown but only 4 to flip 'em the bird.

by kcscoliny on Jan 3, 2009 9:30 AM EST up reply actions  

I didn't ...

… I said that T-D-G will score more runs (more O) than D-C-G (less O), but the defense of D-C-G will give up less runs (more D) than T-D-G. Basically, will Crisp’s (Gload II) defense more up for his ability to not hit worth a damn.

Another Crisp note: He has been in the top ten in the league in 2 categories over his career, CS twice.

by Jeff Zimmerman (TucsonRoyal) on Jan 3, 2009 2:46 PM EST up reply actions  

someone has some 'splainin' to do

Yes, I know I am a total rookie on advanced stats and have admitted as much and I’ve taken my lumps from NYR. I’m only about a chapter into Baseball Between the Numbers.

However, even if Teahen and Gordon amazingly have the same career numbers in OBP and SLG and very similar in AVG, Gordon’s numbers are trending up as they presumably should for a young prospect. On the other hand, Teahen’s have been trending down for 3 seasons. How can these projection systems come to this conclusion that they are essentially going to be the same guy this year.

I guess if it turned out this way, I’d be disappointed in Gordon and somewhat impressed, um, pleased, sort of satisfied, lukewarm on Teahen. Although, I don’t see how Teahen is going to get that many ABs.

I AM intangible!

by kabrink on Jan 3, 2009 12:09 AM EST reply actions  

Trending

It’s kind of overrated in baseball. If you take two players with the similar weighted recent year offensive performance, you won’t find the player who had the better recent performance really performing all that better in the future. In other words, you can’t graph points and draw a line.

Secondly, while Teahen’s older (though not drastically – it’s 2 and a half years), corner outfielders tend to develop better offensively than non-1B infielders.

--
Dan Szymborski
dan@baseballprimer.com

by D.Szymborski on Jan 3, 2009 12:24 AM EST up reply actions  

however

I’ve read many of these statistic geeks’ (meant in a complimentary way) debates and I gather that these projections use sort of a 3 year weighted average to “project” next year, or something like that. So, trend should matter within that context. Although, I see what you are saying if the recent year is weighted more than the earlier years.

But, if that were true then Teahen’s constantly declining production still should play into that and show worse projection.

I AM intangible!

by kabrink on Jan 3, 2009 2:00 AM EST up reply actions  

I think one could argue that Teahen's a non-1B infielder

who just happens to be playing in the outfield. If anything, he was moved to COF because he’s an inferior athlete than Gordon.

by marbotty on Jan 3, 2009 7:50 AM EST up reply actions  

love it

but really bummed on gordo

by Will McDonald on Jan 3, 2009 12:43 AM EST reply actions  

i like your style

projections and advanced statistical models are really cool and often paint a clearer picture of players actual abilities.

but in this case, i really really really have to go with my (gut) feeling (eghhh). totally subjective, gut feeling tells me that gordon hits 270/375/460.

One thing, for example, Alex Gordon had 66 BB’s in 493 AB’s. Why would he have 7 less in 27 more AB’s? Is that figure based on “similar” players career paths?

Alex Gordon in '08

by RoyalJHWKR on Jan 3, 2009 1:11 AM EST up reply actions  

i think he'll do even better

the scouts always say…once the walks start to show up…the power is next. clearly, Gordon has a ton of that.

Founder of the Johnny Giavotella fan club.

by doublestix on Jan 3, 2009 2:24 AM EST up reply actions  

I hope his big breakout comes in 2009

If it doesn’t happen this year, I’m going to give up hope on it every happening.

The immoderate moderator

by NYRoyal on Jan 3, 2009 2:35 AM EST up reply actions  

Really?

Even though Gordon hasn’t entered his prime yet?

by Royals Nation on Jan 3, 2009 6:06 AM EST up reply actions  

ya the odds of him hitting less than 10 are the

same as over 30. hmm

It takes 46 muscles to frown but only 4 to flip 'em the bird.

by kcscoliny on Jan 3, 2009 3:15 PM EST up reply actions  

and what about the RBI?

one step at a time, I guess… today, batting average and RBIs, tomorrow, OPS and VORP…

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 3, 2009 4:37 PM EST up reply actions  

Not entirely. But their level of importance just isn’t very high, in my opinion, because of their track record of not being accurate enough.

by Royals Nation on Jan 5, 2009 12:48 AM EST up reply actions  

Sigh

I’ve asked you what would be “accurate enough.” So what is it? Do they have to be within 10 OPS points of every player, every year? How close to they have to be? Anyone can cherry pick instances when they have been far off. And one can cherry pick instances when they’ve been right on. They aren’t going to call all or even most sudden breakouts or sudden collapses. But they have a good track record and provide a good baseline of expectation. Any fan who thinks his prediction for all of the players on his team are better than the best projection systems is living in a fantasy world.

I’ve read many articles explaining, defending and comparing these projection systems. I’ve seen detailed analyses of what is good and not so good about them. But to have someone write them off as “not important” because they are “not accurate enough” without any explanation seems pretty thin, to say the very least. And you prefer your predictions over these projections? To satisfy my curiosity, how many adult years have you been following baseball closely? It would have to be a lot for you to think that your own projection “system” is better than ZiPS, Chone, PECOTA and Marcel.

The immoderate moderator

by NYRoyal on Jan 5, 2009 1:02 AM EST up reply actions  

NY, I never stated my 'projection system' was better than

….that of professional sources. Not once. In fact, I said it was decidedly worse. My point is that, while the professionals will beat me every time, their projections simply aren’t impressive enough to fulfill my needs. The safe route is almost always exactly that, and it’s easy to predict many players, anyway. Consider the variables (comps, body type, etc), and consider their past. There is very little mystery to them.

Furthermore, I never stated they weren’t important. I think they are only moderately important. Interesting, and worthwhile (like I mentioned earlier), but not worth taking as gospel, and really only worth interpreting as maybe a bit more than a grain of salt.

(Common sense should be an important factor as well…..it doesn’t make sense, for instance, to predict 25 GS/4.00 ERA/170 IP from Jimmy Gobble next year….PECOTA & others seldom do this….if they did predict these things, maybe I’d be a bit more impressed).

by Royals Nation on Jan 5, 2009 1:20 AM EST up reply actions  

Rather:
if they did predict these things (and they came true), maybe I’d be a bit more impressed

by Royals Nation on Jan 5, 2009 1:21 AM EST up reply actions  

To satisfy my curiosity, how many adult years have you been following baseball closely? It would have to be a lot for you to think that your own projection "system" is better than ZiPS, Chone, PECOTA and Marcel.

I’ve been following baseball since I was 7. I have learned, and am continuing to learn, more and more and more in recent years. According to my website:

Keep in mind that this list isn’t strictly scientific. I incorporated a number of elements in my nonscientific projections – age, body type, BABIP/LD% (or general luck) from the previous year, as well as other important factors like league and ballpark switching, and protection in the lineup.

I’m not pretending the accuracy of this list will mirror that of B.P. or Bill James. I maintain what some fans may regard as pessimism or optimism with certain players.

You see, this conception that I feel my projections beat PECOTA, Chone, ZiPS, etc…..is a farce, and a vast polarization (yet again) of my argument.

by Royals Nation on Jan 5, 2009 1:26 AM EST up reply actions   1 recs

You should compare your projections on an annual basis to PECOTA, ZiPS or Chone

Your argument boils down to, “they projections are better than mine, but not by enough for it to be very important.” You’ll find that those systems are considerably more accurate to your predictions or mine or any other common sense, guesstimating fan. Of course, you’d have to make your predictions before these systems come out. It’s easy to be as accurate as those systems when your predictions are informed their projections.

The immoderate moderator

by NYRoyal on Jan 5, 2009 1:32 AM EST up reply actions  

i don't think that's his point

i don’t think his point has anything to do with his projections or comparing them to anyone else’s. looks to me like he’s just saying the professional systems aren’t accurate enough for his liking. it would be interesting to compare our amateur projections (for people who do those type of things) to the professionals, however.

by Fernando Vina School of Linguistics on Jan 5, 2009 3:22 PM EST up reply actions   1 recs

I think its likely he'll take a big step forward

next year in his third full season. But yeah, like you said, even if he doesn’t step forward like we want him to, he hasn’t entered his prime years yet.

Alex Gordon in '08

by RoyalJHWKR on Jan 3, 2009 4:26 PM EST up reply actions  

What did these projections show

for Longoria before 2008?

I AM intangible!

by kabrink on Jan 3, 2009 1:29 AM EST reply actions  

Longoria ZiPS: .260/.350/.436 17 HR,61RBI in 120 games....Actual: .272/.343/.531 27HR,85RBI in 122 games

Here’s an article comparing Royals’ projections to reality from last year’s season.

http://royalsauthority.com/2008/11/projection-versus-reality.html

…and another that compares the various projection systems for team’s overall Win-Loss record, for what it’s worth
http://vegaswatch.net/2008/09/evaluating-april-mlb-predictions-update.html

by Fernando Vina School of Linguistics on Jan 3, 2009 1:38 AM EST up reply actions  

Dan, if you pop by and see this...

I’m a little surprised that Gordon’s projection shows essentially no improvement over his 2008 numbers (a little worse OBP, a little better SLG). Shouldn’t we expect a talented guy like Gordon who did well in his brief minor league career to improve from his age 24 season to his age 25 season?

The immoderate moderator

by NYRoyal on Jan 3, 2009 2:43 AM EST reply actions  

it may be irrelevant

but what may be dragging gordon down is what we sorta discovered last off-season: his inability to hit lefties

even last year, he only hit .234/.312/.317 against southpaws, and while i love his efforts to get on-base, it may simply be that in college and the minors the lefties (who may have been the dregs of the precious lefties of the world) he faced he could handle, but not anymore

i dunno

he’ll probably have a few random years where he hits lefties better, and those will be his career seasons

by Will McDonald on Jan 3, 2009 2:56 PM EST up reply actions  

+1 million

writing a long email to someone else… we need to get rid of OPS and stuff… Gordon is already in the “not the problem” category, even if he isn’t A-Rod, David Wright, or Longoria. He was above-average overall this year, and might even have been around 3 WAR, if you add BP’s baserunning stat (one of the best things over there other than PECOTA and EqA) to Fangraph’s… Hell, I had him at 2.84 without baserunning.

A 3 WAR player won’t carry a team (especially with a “supporting cast” of Guillens, Olivos, Teahens, and Jacobses), but they can be a great value anyway.

But, as you note, the problems are with lefties. In 2007, he couldn’t make contact but actually had decent ISO (.217/.266/.420). In 2008, he improved the contact but lost the power (.234/.312/..317).

Here’s some bullshit I stirred up, but it might help us feel better (other than looking at his great second-half in a small sample size): I think it’s fair to say that his 2008 vs. RHP was legit: .273/.370/.491. Now, against lefties, take his BA and OBP from 2008 (not great shakes at .234/.312) but add the ISO from 2007 for a .437 SLG, for a.234/.312/.437 line. No great shakes, but a definite improvement. Combine those line with his RHP numbers, and you get something like .260/.350/.473 line.

 Now, an .823 OPS (whatever that means) may not impress people too much, but, although conversion to a real runs-proportional stat like wOBA isn’t possible without all the components, but in 2008’s run-environment, that would be worth as much as 8 runs above average more over this year’s underrated performance by Gordon.

That said, as I acknowledged, that’s a silly way to do things, but does make one wonder about what sort of studies have been done on the development of platoon splits among left-handed hitters, given that the character of those splits are different than those of RH hitters.

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 3, 2009 4:54 PM EST up reply actions  

They are very valuable, very meaningful and have a record of being pretty darn accurate. But of course no one is saying that if a projection says a player is going to hit .275/.325/.425 then he’ll definitely hit like that. These projections are very meaningful but they are certainly not the final word. For instance, Nate Silver says that every PECOTA projection should be viewed as such: Player X is most likely to perform somewhere in the range between his 25th and 75th percentile projection. And within those parameters, he’s usually right.

I don’t quite get it when people react to both stats and projections by saying, “baseball is not played on a computer” or “the game is played on the field.” Of course it is. And in 2009 anything could happen. But not all possibilities are equally likely. And stats and projections help us to figure out what appears to be most likely. This is meaningful information, not just some random number crunching. The unfortunate reality is that over the long history of the game, players like Gordon who have performed like Gordon has at those ages have typically followed this kind of development curve. Does that mean he can’t breakout or collapse in 2009? Certainly not. But it gives us, arguably, the most likely trajectory of his short-term future.

The immoderate moderator

by NYRoyal on Jan 3, 2009 3:22 AM EST up reply actions  

They are very valuable, very meaningful and have a record of being pretty darn accurate.

Valuable? To an extent. Meaningful? To an extent. Accurate? Not accurate enough.

Player X is most likely to perform somewhere in the range between his 25th and 75th percentile projection.

The problem is that position players tend to be far more consistent than pitchers in their production. One can give ‘general terms’ on how a player will perform and that prediction will be deemed “accurate”, even though it’s a large enough spectrum that the accuracy – or precision in their ‘projection’, isn’t that impressive.

This is meaningful information, not just some random number crunching.

I’m not sure if you’re responding to me or responding to other people who have made similar arguments in my post. If you’re responding to me with the bolded text, you need to read my comment again.

Does that mean he can’t breakout or collapse in 2009? Certainly not. But it gives us, arguably, the most likely trajectory of his short-term future.

It’s likely based on too limited information. This ‘definitive accuracy’ that sites like B.P. post is much hoopla and promotion, in my opinion. It’s a meaningful effort, and a necessary one, which is why I buy their book every year, but it’s hardly definitive, as they will have you believe. I feel like I could predict much of this information, based on: MiLB info., comps., health history, etc. etc. and fall into an only slightly inferior accuracy than projection systems. By the way, check out some of the projections for the 2008 Royals. Many of them were dead. freaking. wrong. Gload at .300/.350/.450? That’s a laugher in and of itself.

by Royals Nation on Jan 3, 2009 5:04 AM EST up reply actions  

FWIW, from BP regarding 2008 offensive projections
The three systems that give you the most positive information are PECOTA, ZiPS, and (somewhat surprisingly) ESPN in that order. In other words, if you had our projections and some of the other projections, the ideal blend would be 5 parts PECOTA, 4 parts ZiPS, and 3 parts ESPN. You could also add in 2 parts of Marcel without hurting yourself. The other projection systems don’t really tell you anything … they might be perfectly fine systems, but they don’t give you any unique information. (Actually, you could almost do better by adding in a NEGATIVE weight from the RotoTimes projections, but that result is not statistically significant).

http://www.baseballprospectus.com/unfiltered/?p=564
(isn’t PECOTA a BP projection?…hmm….it was the highest-rated…interesting)

….and another (two-part) article regarding the accuracy of team projections:
http://www.replacementlevel.com/index.php/RLYW/comments/the_2008_diamond_mind_projection_blowout_pt_1

(interesting to see the playoff percentage possibilities of Tampa, ChiSox, Philly)

It’s pretty evident to me that some people put much more meaning in these type of projections than others. Perhaps some take them too seriously, others don’t give them the time of day. I’m not saying one side is better than the other…just the reality of the situation. For some projections are essential reading, for others their value is more of the comedic variety. I personally don’t have enough experience and/or exposure to them to have a strong opinion, but it is interesting nonetheless.

by Fernando Vina School of Linguistics on Jan 3, 2009 5:21 AM EST up reply actions  

25%-75% percentiles?

A percentile is defined as an equal 1% chance of something happening. Twenty-fifth to seventy fith percentile means that 50% of the data should fall into that range, or that it should be right only 50% of the time. If it is more accurate then that then their percentiles are wrong and they need to redo thier system. Basically, they are making thier system appear more accurate then it is by lowering the expectations of thier projections.

Go Royals!

by BabyBlues on Jan 3, 2009 10:12 AM EST up reply actions  

Valuable? To an extent. Meaningful? To an extent. Accurate? Not accurate enough.

I have no idea what this means. These projections basically tell you what is most likely to happen given the available information and within a certain range of probability. What would be “accurate enough?” Some system that tells you for certain how a player is going to perform? That is impossible. But they have a pretty good track record.

When I look at these projections, I don’t take them as gospel. Just because PECOTA or ZiPS projects a certain level of performance, that doesn’t mean that will necessarily happen. But it gives us a good expectation baseline. Of course you have to recognize the limitations of projection systems. This includes the fact that very young players and players with limited MLB data are going to have less reliable projections.

This ‘definitive accuracy’ that sites like B.P. post is much hoopla and promotion, in my opinion.

I don’t know where you get this phrase from. Neither BP nor ZiPS nor any other projection system claims to be “definitively accurate.” Their projections are not definitive descriptions of what will happen in the future. They are projections based on the player’s data and player modeling based on what has happened over the history of the game.

I feel like I could predict much of this information, based on: MiLB info., comps., health history, etc. etc. and fall into an only slightly inferior accuracy than projection systems.

I’d love for you to do that some year. Next offseason before any of the projection systems come out, I’d love for you to project the KC Royals roster and then at the end of the season compare the accuracy of your projections to that of ZiPS, PECOTA or Chone. You’ll find that you did considerably worse than all of the above. Even this offseason, why don’t you take a handful of players where you think the projection systems are wrong, make your prediction for 2009 and then compare the two at the end of the season. I think you’ll find the results instructive.

The immoderate moderator

by NYRoyal on Jan 3, 2009 12:50 PM EST up reply actions  

+1

Founder of the Johnny Giavotella fan club.

by doublestix on Jan 3, 2009 5:43 PM EST up reply actions  

Weighted Recent Seasons

Let me go over it step-by-step, which might be a little clearer.

ZiPS looks at the last 3 years for soon-to-be 25 year-olds (2 years for age 24 or less and age 39 and later, 4 years between 26 and 37). Gordon’s weighted stats for that period (7/5/4 starting in most recent year), in a projected 2009 park and league context, are 254/336/423.

ZiPS then makes a basket of the generic age curve for 25-year-olds from their age 22-24 seasons and the aging of a large group of players with similar characteristics, med-low BA, medium power, medium speed (and a bunch of other things) 3B. ZiPS then spits this data over to STATISTICA for creating a probabalistic model of outcomes for the next season. In this case, STATISTICA finds the “middle ground” as Gordon improving from his 3 year weighted stats of 255/338/426 to 259/342/442, or 20 points of OPS (people generally drastically overrate the odds and rate that young players improve).

A similar thing is done for Teahen. ZiPS has his 4-year weighted in 2009 environment as 272/337/429 and improving by 8 points of OPS over that, to 272/342/432.

Now, I’ve simplified a fewer steps as there are quite a lot of other things in there, but that’s the basic, general idea. A projection actually takes about 2 minutes to process on my Quad Core (much longer when I estimate a career), though I could probably bring that down with more efficient writing (I’m not a computer programmer).

--
Dan Szymborski
dan@baseballprimer.com

by D.Szymborski on Jan 3, 2009 9:17 AM EST reply actions  

Dan how much weight do you give to Teahen's '06 season?

Do you measure the same way as you list above or could you make a differentiation since it is an oddity among his other stats or do you just calculate it as above? What would his Zips projection look like if that season had been more similar to the others in his career?

What are your ZiPS projections for Billy Butler?

It takes 46 muscles to frown but only 4 to flip 'em the bird.

by kcscoliny on Jan 3, 2009 9:44 AM EST up reply actions  

Dan, do you do anything with Speed Score? Wouldn’t that effect the aging curve as well? Although the defensive aspect of the traditional James speed score hurts Gordon vis-a-vis Teahen, it seems to me that this SB succcess rate and some other things might bode well for him.

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by Matt Klaassen on Jan 3, 2009 4:55 PM EST up reply actions  

Butler

Just ran the projection and ZiPS has Butler at 283/346/433, almost identical to Marcel. The projection is similar to Gordon’s, but with a higher variance – ZiPS sees Butler as more likely than either Gordon or Teahen to be an elite hitter in 2009 but also more likely than either to be a terrible hitter.

--
Dan Szymborski
dan@baseballprimer.com

by D.Szymborski on Jan 3, 2009 10:38 AM EST up reply actions  

The thing is

If Butler is really a career DH, to be as valuble as Gordon was in 2008 (around 2.5 WAR), he needs to be an elite hitter…. 3B is just way, way more valuble than a DH.

To be even a 3 WAR player, Butler basically has to hit like Aubrey Huff did this past season.

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 3, 2009 8:04 PM EST up reply actions  

I agree

but then to equal Gordon’s value, instead of being 2 wins (20 runs) better than Gordon on offense, he “only” needs to be 1.5 wins (15 runs) better… assuming equal defensive ability. That’s a lot.

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 3, 2009 8:33 PM EST up reply actions  

You're right

to be safe, we better stick with Gload!

I AM intangible!

by kabrink on Jan 3, 2009 8:52 PM EST up reply actions  

exactly

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 3, 2009 8:55 PM EST up reply actions  

I guess I follow some of that

What are the 1 standard deviation numbers for Gordon and Teahen?

I AM intangible!

by kabrink on Jan 3, 2009 12:15 PM EST up reply actions  

be careful what you ask for...

thanks, Dan

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 3, 2009 2:16 PM EST reply actions  

I can make predictions too.

Young guys add 10% to last year’s good stats, take away 10% from the bad. Reverse that for old players. Wow. I’m as accurate as all projection systems. Silly stuff. My “projected” fantasy baseball team last year won the league, of course my real team finished 5th.

by AxDxMx on Jan 4, 2009 4:39 AM EST reply actions  

heh

yeah, I like that one better

I’m sure Aviles’ defense is just as sustainable as his offense, so I look forward to the next few years of Jeter-with-power offense, and Adam Everett-in-his-prime defense (bUZR had him at +29/150 in 2008). Lock him up now, Dayton! Right after you get done with JoGui’s extension!

Dan, thanks for coming here, even if the news wasn’t quite as good as I’d hoped. I can’t remember if I asked this earlier, but how much (if anything) does ZiPS do with platoon splits? I ask because Gordon’s are quite pronounced. He improved markedly against RHP from 2007 to 2008, but while his contact and walk rates improved against LHP, his ISO got cut in half. Have you simply found that stuff like this is insignificant? Just curious.

P.S. — I know we can figure it out ourselves, but any chance you’ll starting accopanying your projections with wOBA (along with league woBA and linear weights above average)? Just a request.

Thanks for kicking ass with a publicly available projection system.

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 4, 2009 4:39 PM EST up reply actions  

seriously

where in the hell did Aviles come from?

when all his awesome defensive numbers started coming out, i was stunned

not only should he have been ROY, he was an MVP candidate

by Will McDonald on Jan 4, 2009 5:06 PM EST up reply actions  

yup

Fangraphs has him at 4.4 WAR, which, believe it or not, might be a bit low, considering that they don’t use a higher (or lower?) replacement level to account for the superiority of AL pitching.

I guess I’m also trying to prepare myself for his inevitable regression to something like “only” 2.5 WAR next year… 4.4 WAR in 110 is just sick. over 150, that’s 6 WAR. That’s an A-Rod season. Well, an A-Rod season where he gets hurt for a few weeks or “slumps” down to a mere .900 OPS or something, but you get the idea.

I wonder if Avilanche likes muscular she-male types?

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 4, 2009 5:10 PM EST up reply actions  

one more thing

I don’t know quite how to figure it, and this has to be wrong, but when I did a rough comparison of Al and NL pitching this past year, using FIP-RAR, I came out with the AL pitchers being 1053.8 wins above replacement better than the NL last year… that can’t be right, can it? Still, pretty hiliarious.

Teahen would be a GOD in the NL.

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 4, 2009 5:13 PM EST up reply actions  

Platoon Splits

ZiPS doesn’t do anything for platoon splits. Namely because short-term (few year) platoon splits aren’t worth much predictively. For hitters, the point at which actual platoon splits predicts future platoon splits as well as generic splits (switch-hitters are a special case) is between 5-8 full seasons.

Just as an example, left-handed batters, on average, hit 70-90 points of OPS a year worse against left-handed pitchers than right-handed pitchers. Gordon’s 232 points worse was unusually large, so it takes less time for that to have predictive value, but even with a OPS difference that large, he’d need to do that for 3 more full seasons just for his 232 points worse to be more likely in the 5th year than 70-90 points.

Remember, you’re looking at a subset of performance in which the variability of performance is lower.

--
Dan Szymborski
dan@baseballprimer.com

by D.Szymborski on Jan 4, 2009 8:54 PM EST up reply actions  

cool

it all makes sense. Thanks. I figured that at this point, the predictive value wouldn’t have much significance for ZiPS. Hope against hope, “regression to the mean” might indicate we could expect Gordon’s numbers against LHP to improve closer ot his numbers against RHP, but I take it that’s a unfounded way to think…

Just looking for glimmers.

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by Matt Klaassen on Jan 4, 2009 9:12 PM EST up reply actions  

Quick wOBA conversions

using weighted averages of fangraphs-style woBAs from my own database (and keeping in mind that Dan’s preliminary projections above don’t include HBPs, ROEs, or CSes), a quick 2009 projected lgwOBA for all MLB is .3283. Gordon’s wOBA (using the standard wOBA) is .344, Teahen’s is .343 (not park-adjusted, just give me time on that).

The quickie results, over 700 ABs:

Teahen:

+8.3 offense, -7.5 for corner outfield, assume average outfield defense (different sources have very different things, usually above average), +25 AL replacement level = 25.8 * 85% playing time = ~2.2 WAR player. Slightly above average.

Gordon:

+9.4 offense, +2.5 for 3B, average defense (as bad as it was this year, most sources have hiim pretty good in 2007), +25 Al replacement level = 36.9 * 85% playing time = ~ 3.1 WAR player. Not bad.

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 4, 2009 5:07 PM EST reply actions  

Thanks for crunching those numbers

I don’t feel too bad about either of those WAR numbers. I’d still prefer a breakout from Gordon. Perhaps the baseball gods will smile upon us.

The immoderate moderator

by NYRoyal on Jan 4, 2009 5:17 PM EST up reply actions  

My favorite baseball god

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 4, 2009 5:19 PM EST up reply actions  

Gordon's wOBA

is exactly the same as this past seasons, assuming that the “standard” wOBA weights somehow all equal out to the custom ones from 2008. Which they won’t. His offense isn’t what we want or expected, at least not yet, but the defense really hurt him last year. Not to mention the injury. Maybe the two are connected?

And this doesn’t consider his baserunning. BP had him at about +3.4 runs. Of course, the Amazing Avilanche was at about +4.5 (!). Holy shit. that puts him over 5 WAR in 109 or whatever for sure…

Unfortunately, Mark “Baserunning 4 Life” Teahen is at -1.8 (did anything go right for him in 2008?), even worse that JoGui’s -1.7. Teahen and DDJ were both around 3 in 2007.

Too bad they don’t go back before that — I wonder why? Surely all this can be reconstructed with retrosheet…

Bringing you more-or-less replacement level analysis and commentary since sometime in 2008.

by Matt Klaassen on Jan 4, 2009 5:29 PM EST up reply actions  

Gordon & Platoon Splits

I remember this topic coming up sometime mid-year in 2008, and I remember out of curiosity I looked at DDJ’s career splits. He was very poor as a rookie against lefties, but the very next season he had his splits in the normal range.

I am of the opinion that this is the key to Gordon’s potential development. Can he get his platoon split to a normal level? Like DeJesus was as a rookie, Gordon was sheltered by Bell his rookie season as well. The 2nd year? Both were sorta “thrown in the fire”; i.e., asked to play against MOST ALL lefties their 2nd year, and DDJ caught on, while Gordon has yet to do so.

Hopefully, this is mitigated by Gordon’s younger age as compared to DDJ, and by a MUCH lower level of prior professional experience for Gordon as compared to DDJ going into their 2nd seasons.

Why is this important? Well, if Gordon CAN improve his platoon differential, he can probably match DDJ in OBP while providing near 500 slugging percentages going forward. That would be a damn fine 3B, even if he never becomes the “franchise savior” many of us prayed he would be.

Mr Glass, this is a pro sports team, not a retail store - run it like one!

by loyal2sdad on Jan 5, 2009 11:39 AM EST reply actions   1 recs

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