Showing posts with label nate silver. Show all posts
Showing posts with label nate silver. Show all posts

Friday, March 19, 2010

The Most Undah-rated Linkaround Evah!

Here are a few things to check out before you really begin hoarding your company's bandwidth and submarining its productivity:
Alex Speir of WEEI wants to know why the rest of the country doesn't appreciate Kevin Youkilis for the haaahd-working, ovah-achieving supahstah he is. WHEN WILL YOU FACKS EVAH GIVE YOUK THE CREDIT HE IS DUE??!

If you are planning on buying Yankee tickets when they go on sale at noon today, be sure to check out the Ticketmaster tips from Ross at NYY Stadium Insider.

Nate Silver's projections say that Jeter will hit .286 this year and Allen Barra of the Village Voice infers that the Yanks are doomed if he's right... CRUCIFY THEM BOTH!

Speaking of the Captain, it appeared that he might have tweaked his throwing hand on a diving stop last night night, but according to him, it's fine and he'll play today against the Tigers at 1:05.

Joel Sherman says that it's "almost certain" that the Yankees will trade either Sergio Mitre or Chad Gaudin before the season begins. Gaudin seems to have more value as a swingman but also has a higher salary. Just depends on who they select as a trading partner, I suppose.

Patrick Sullivan over at The Baseball Analysts continues their Stakeholders series with five questions for Bronx Banter's Cliff Corcoran about the Yankees.

Greg Fertel from Pending Pinstripes did the math on the concept of bullpen chaining I brought up in my post about the 5th starer. Click through to see how much sending Joba to AAA would cost the MLB club.

Mike Vaccaro of the Post talked to Mark Teixeira about the pressures of playing in New York. It's the typical "playing in New York is so much more difficult and important that playing anywhere else" piece, but I still enjoyed this line:
Nobody ever wonders if a linebacker "has the makeup to make it in New Orleans." No one ever ponders if a power forward can become "a Portland guy." Or if a goalie has what it takes to make it in Buffalo.
Prospect maven John Sickels interviewed Yankees Senior Vice President Mark Newman. Topics include Slade Heathcott, Andrew Brackman, Jesus Montero, Pat Venditte, and Jeremy Bleich (pronounced "Bleish").

Geoff Baker did an interesting video interview with Bill James which included some reader/viewer questions. As always, James gives frank and interesting answers but this time you have visual confirmation that he is not a robot.

DRay's Bay wonders if the number of batters hit by pitches is in decline.

Is the hype around Aroldis Chapman enhanced by the fact he comes from the magical and mysterious island of Cuba? Tim Marchman believes so. Marchman also believes that it's ridiculous for baseball to be drug testing it's managers. We may or may not have some more thoughts on the Ron Washington Saga in the near future.

Jeff Zimmerman at Beyond the Box Score used spray charts as a way of examining wrist injuries. If nothing else, it's a nice reminder of how much David Ortiz sucked at the beginning of last year.
We'll be back with more in a little bit.

Tuesday, January 26, 2010

Jeter, Rose, Rodriguez & Record Projections

The question of whether or not Derek Jeter will pass Pete Rose's all-time hit mark is not a new one. From what I can find on these here internets, Rob Neyer addressed the possibility in a mailbag back in 2006 as Jeter was approaching 2,000 hits and was, like he is now, slightly outpacing Rose based on seasonal age and number of hits accumulated. It came up again in 2008 as he neared 2,500 hits and probably a few times in between.

Since then, essentially nothing has changed except the people who bring up the question - usually not bloggers but relative outsiders who haven't heard it discussed ad nasuem already. Back in that 2006 Neyer mailbag it was a reader named Yehuda Hyman and yesterday it was the pinch hitter at LoHud named Lucas Vanderwarker. Lucas's post got picked up over at Baseball Think Factory and Neyer got in on the action again, adding some new relevant assumptions to the equation:
Now, let's think about how Derek Jeter's career is likely to play out. One, everyone seems to think that Jeter will retire as a Yankee; that they'll do anything keep him around and that he won't be interested in playing elsewhere. Two, he's a shortstop. There's essentially no such thing as a 42-year-old shortstop. Three, the Yankees have Mark Teixeira under contract through 2016, when Jeter will be 42. They've also got Alex Rodriguez under contract through 2017, when Jeter will be 43.
David Pinto also chimed in, offering up Robin Yount as a comparable who, as a 35 year old was over 100 hits ahead of Rose but played only two more seasons and finished with 3,142 in total.

As Rose said Joe Posnanski, "You tell Derek the first 3,000 are easy". Of course, the implication is not that they're actually easy, but they're a lot easier than the next 1,256, which, as every other person ever to have played the game has figured out, is a true statement.

Jeter is 35 and a half years old and although we've seen very few indications to the contrary, the Cap'n is not invincible. No one is.

I learned this the hard way last year when I took issue with Nate Silver's projected home run totals for Alex Rodriguez, which predicted he'd end up with 730. I eventually ventured a guess as to what his career home run tally would be. I used an exhaustive 8 step methodology and arrived at the number 792. That involved a prediction of 42 for the 2009 season.

Much to my chagrin, not even two weeks later A-Rod was out in Colorado having surgery to repair a torn hip labrum, missed over a month of the season and had to hit two home runs in the same inning in Game 162 just to reach 30. Not only that, but his hip injury also cast serious doubt on his long term health.

While it's still a distinct possibility that A-Rod breaks Barry Bonds' Hank Aaron's record, it doesn't seem nearly as likely as it did just a year ago. But the picture is a lot rosier than it was the day after he had surgery. And that likelihood will probably fluctuate countless more times before he either breaks the record or retires.

I understand why fans like to talk about these far-flung possibilities and we are outrageously lucky to have two players on the Yankees pursing perhaps the two most hallowed career offensive records in Baseball. But at the same time, I'm not interested in reassessing what a projection system - using a bunch of players as comparables who, by definition didn't break the record - predicts the odds are that A-Rod or Jeter will reach that milestone every time one of them passes a round number, gets injured or the offseason news cycle grinds to a halt.

Projections can be a very useful tool in the right context but these kinds of records get broken on a very infrequent basis and only then by extreme statistical outliers. And besides, the left side of the infield still has a long, long road ahead.

Monday, August 24, 2009

About Those Chickens...

Jay Jaffe of Baseball Prospectus did not heed Matt's advice from this morning when penning this column for New York Magazine, applying BP's "Secret Sauce" for postseason success to this year's Yankees. The formula, developed by Nate Silver and Dayn Perry, isolates three key variables that have predicted team's outcomes in the postseason more accurately than others over the past 30 years:
They found that age and postseason experience had no effect on a team’s chances; surprisingly, they also found no significant correlation between any measure of team offense (including bunting and stealing) and postseason success. What they did find important were three measures of pitching and defense, which they called the “Secret Sauce”.
The best predictors of October glory are a pitching staff with a high strikeout ratio, a strong team defense and a solid closer. Since scoring is depressed in the postseason, it's valuable to have a pitching staff that avoids bats, a defense that can save runs and a closer than can lock down victories. Jaffe does a great job of explaining in detail why these factors increase in importance in the playoffs and concludes (emphasis mine):
None of this is meant to knock the offense, which has helped make them a near-lock for the playoffs. But it’s the Secret Sauce that bodes well for their chances once they get there. The last time the team made such a drastic leap in the Sauce rankings was 1996—which, fans will remember, was the end of their last excruciatingly long World Series drought.
Since Jaffe is a BP guy, he's not concerned with jinxes and is speaking in no uncertain terms because their odds have the Yanks' odds of making the postseason are at 99.4%.

The leap he's talking about comes mainly from a jump from 26th to 3rd in Fielding Runs Above Average and a big boost in K/9. The increase in strikeouts is obviously driven by the acquisitions of CC Sabathia and A.J. Burnett but the cosmic leap in defense is harder to explain. Even with Derek Jeter suddenly above average at short and Hideki Matsui, Jason Giambi, and Bobby Abreu out of the field all together it's hard to imagine the Yankees jumping 23 slots in that ranking.

Do I trust the rankings implicitly? No, but it certainly is encouraging to know that the Yanks have a team built for success not only in the regular season, but into October as well. Whether or not that translates into anything this year remains to be seen. Those are the chickens that Jaffe doesn't dare to count either.

Tuesday, July 14, 2009

Midday Linkaround

Sorry Fackers, it's a slow day in terms of news and a busy one for both Matt and me. Here are a couple of items of interest to get you through the afternoon.

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I hardly watched any of the Home Run Derby last night because in the process of drinking three beers at the bar, I saw a grand total of 11 home runs hit, thanks mostly to Brandon Inge's impressive display. How's that for action?!?! Didn't exactly entice me to turn it on when I got home, you know? Craig from Shysterball didn't watch much more, but he did jot more of his thoughts down.

Joel Sherman has three suggestions to improve the Derby. I like the first two, and even though third sounds like a good idea, it feels really dirty.

Sherman also posted three things he thinks about the Yanks at this point in the season. One of the items is a positive look at A-Rod. He's got 17HRs and 50RBIs despite missing the first 5 weeks of the season. Not too shabby, all things considered.

Looking at this post from Jason made me realize that A-Rod is still on pace to exceed Nate Silver's infamous projection, which I offered an alternative to back in February. Nate said 33, I said 42 and if A-Rod holds his pace of homering every 3.41 games he plays in, he'll end up with 39.


Mike from River Ave. Blues takes an in-depth look at the development of Austin Jackson. It's something we've attempted to do here in the past but Mike really knocks this one out of the park (even if Jackson has struggled to do so).


Josh has something in common with Andrew Bailey, but I have something in common with Mariano Rivera.

Remember when fan clubs were just for the Backstreet Boys and the Red Sox? Not anymore...

/hangs head in shame

And last but not least, allow me to offer a friendly travel tip: If you are going to smuggle cocaine in your golfing equipment, you might want to brush up on the basics of the game.

Thursday, February 26, 2009

Fantastic News

Fack Youk has been picked up by ESPN:



Despite of all the Widget bashing, erroneous Simmons hating, and Nate Silver questioning, we are now part of the ESPN family. They've specifically requested more incoherent rants from Big Willie Style.

[Ed. Note: That's not a photoshop, just a random Internet Explorer glitch.]

Wednesday, February 25, 2009

Dueling Projections


I have taken considerable heat for my post on Nate Silver's A-Rod projections in our comment section and elsewhere. As always, here at Fack Youk, we subscribe to Benjamin Disraeli's quote "It is easier to be critical than right". As the result of some goading from a commenter named Fridas Boss at Baseball Think Factory, I have used some cutting edge statistical techniques to develop my own projection for how many home runs Alex Rodriguez will amass over the course of his career.

First, for the record, here are Nate's projections again (with A-Rod's past two years).


One thing I didn't notice before was that Silver's projection lasts two years beyond A-Rod's current contract. I'm going to go out on a limb here, but if A-Rod hits four home runs in 2017 and is at 726 total, I don't think the Yankees, or any team for that matter, are going to sign him.


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My method was extremely complex and exhaustive. Here are the steps I took.
  1. Used the later years of Frank Robinson, Eddie Murray, Hank Aaron, Willie Mays and Babe Ruth to see, in total, how some of the greatest home run hitters of all-time have produced during their decline phases. I excluded Barry Bonds because of his atypical middle aged physical metamorphosis, despite the fact that he a A-Rod are both alleged PED users.


  2. Combined that and A-Rod's previous totals to develop a trend line for doubles.


  3. And for slugging percentage, factoring in his declining speed and the negative impact it will have on his SLG%.

  4. Combined those three lines into a conglomerate trend line I called his Projected Power Index (PPI)


  5. Estimated the ballpark effects of the New Yankee Stadium based on the prevailing weather patterns in April through September and the way it the diamond now faces.

  6. Used all of these in conjunction with his previous home run numbers, taking into account his steroid use in Texas (increased production minus park effects) to create his Projected Home Runs (PHRs).


  7. Decided all of that that would be way too difficult and possibly counterproductive, and instead picked the number "792" which would ensure that if he breaks the record, I will be closer than Nate by a couple of HRs. I then back-filled the numbers making sure there wasn't a drop off every single year since that was something I took issue with.


  8. Behold:

One of the things I said in the last post, but probably should have emphasized more was:

I realize that the most reliable way to predict future outcomes is by analyzing past events. However, the flaw in using this methodology is that it becomes impossible to predict when someone will do unprecedented things. Simply put, how is analyzing 20 guys, none of whom is the career home run leader, ever going to result in the simulation predicting A-Rod will break the all-time record?

Commenter scatterbrian nailed it:

It seems futile to attempt projecting a career that is an outlier. Rodriguez had 91 extra-base hits in his age-20 season, so we're dealing with a pretty rare player as it is. (DiMaggio and Pujols each had 89 in their age-21 seasons.) Using guys like Grich, Caminiti and Sandberg as comps doesn't seem fair to Rodriguez. Combined those three have only four seasons with 30+ homers. Rodriguez has hit less that 35 just one time.
The point of an individual projection, at least to me, is not to produce a seemingly exhaustive and all-encompassing methodology. The objective is to be right.

PETCOA is obviously more complex and accurate overall than anything I could ever hope to construct. However, the point of the previous post was to call into question a method that is only going to produce one result: A-Rod falling short of the all-time home run record.

Silver's projection serves to remind us that A-Rod breaking Hank Aa-- er, Barry Bonds' record is far from a foregone conclusion based on pretty much every career path that has taken shape in the history of baseball. I just don't think A-Rod fits that mold.

Only time will tell.

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Oh and by the way, I made a similar projection for his home run totals this year, based on his performance in Spring Training. You probably won't believe it, but he is currently on pace for 162 HRs in 2009: A-Rod homers in first spring game [ESPN]

Tuesday, February 24, 2009

He Also Picked Mickey Rourke...

I'm a little late to the party on this one, but Nate Silver's projections of A-Rod's home run totals just don't look right. Here is his description of his methodology:
I took Rodriguez's top 20 PECOTA-comparable players and averaged their performances over each remaining season of their careers. Actually, the process was a little more complicated than that (each comparable's performance was adjusted for his park and league context, as well as his previous track record, and we had to make an accommodation for guys like Manny Ramirez who made A-Rod's comparables list but have yet to conclude their own careers). But the basic idea is simple: Comparables like Frank Robinson, who aged well, have a favorable effect on Rodriguez's forecast, and players like Caminini [sic] just the opposite one.
And here are the projections (I've added A-Rod's two previous seasons in white):

There are three glaring problems to me.
  1. Silver predicts a near-linear decline, with each total being 2-6HR lower than the preceding year. This, of course, is the result you are going to get when you take his "top 20 PETCOA-comparable players" like Silver did. If you take any 20 players and average their careers, the total number of home runs is almost always going to decline with age. Increase the sample size and it will always decline. The only problem is, over that ten year period it is extremely unlikely that any individual player is going to have that consistent of a downward slide. I will bet anyone reading $100 that this doesn't happen to A-Rod. First one to take the bet in the comments is on, we can iron out the details later.

  2. A-Rod is going to be able to DH at some point. Common knowledge would suggest that playing regularly in the field puts wear and tear on a body, draining energy in individual games and effectively shortening careers. Many of his comparables didn't have that luxury and were driven out of the league because they were no longer well-rounded players, not just because they could no longer be effective at the plate and hit home runs.

  3. The problem with being on pace to be the greatest home run hitter of all time is that you aren't going to have too many people similar to you.

Here are Alex's 20 comparables (and their career HR totals):

  1. Sammy Sosa (609)
  2. Bobby Grich (224)
  3. Dave Winfield (465)
  4. Ken Caminiti (239)
  5. Ryne Sandberg (282)
  6. Frank Robinson (586)
  7. Dwight Evans (385)
  8. Jeff Bagwell (449)
  9. George Brett (317)
  10. Reggie Jackson (563)
  11. Hank Aaron (755)
  12. Greg Luzinski (307)
  13. Albert Belle (381)
  14. Reggie Smith (314)
  15. Manny Ramirez (527, Inc.)
  16. Carlos Delgado (469, Inc.)
  17. Dick Allen (351)
  18. Doug DeCinces (237)
  19. Larry Walker (383)
  20. Tony Perez (379)

Granted, PETCOA's comparables are based on a ton of things besides home runs, but the problem with this list is that A-Rod already has more HRs than 16 of the guys on it. He has twice as many as his second and fourth closest matches and his career isn't over. I know Nate is going to lean on his own projection system for a variety of reasons, but it would probably have made more sense to look at the top 20 career HR leaders. We are, after all, trying to predict how many home runs he is going to hit and he's already #12 on the list.

I realize that the most reliable way to predict future outcomes is by analyzing past events. However, the flaw in using this methodology is that it becomes impossible to predict when someone will do unprecedented things. Simply put, how is analyzing 20 guys, none of whom is the career home run leader, ever going to result in the simulation predicting A-Rod will break the all-time record?

Look what happens when you line up A-Rod's projections with Hammerin' Hank's:


For one thing, last year, A-Rod played in only 138 games. If he played 156 games, he was on pace for almost exactly 43 HRs, right in line with a 32 year old Aaron.

Where the big differentials come in, are from ages 35-39. As A-Rod enters his steady plunge into oblivion (98HR, 19.6/year), Hank checks in with 203 round-trippers (40.6 per year) including the highest single season total of his career (47 at age 37).

There's no guarantee that A-Rod will hit even one more home run. He could get struck by lightning tomorrow. I just don't think that Alex is going to take the field on a consistent basis and gradually slide off into oblivion like PETCOA projects. The truly eye opening part of Silver's projection is that he'll would still only be 33 HRs away from the all-time record even if he is as bad as the simulation predicts.

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Before you leave a comment telling me how much of a moron I am, I've posted my own projections here.