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Showing posts with label PECOTA. Show all posts
Showing posts with label PECOTA. Show all posts

Thursday, May 06, 2010

Hippeaux's Mailbag

I finally posted a functional email address earlier this month (sorry about that).  Since then, there has been a trickle of questions, mostly fantasy related.  Here are some answers which I thought might be relevant for others:


"So, Hippeaux, do you still hate the Bradley/Silva trade?" - Eric


I definitely deserve this.  I reemed Jim Hendry for making this deal and ridiculed it again and again over the course of the offseason.  Silva didn't show the slightest sign of weakness until his last start.  He's been among the Cubs best starting pitchers so far (2-0, 2.90 ERA).  Meanwhile, Bradley has continued a descent into irrelevancy by beginning the year with a 684 OPS and then exiling himself from the team to deal with psychological issues.  So, yes, Hendry is probably feeling pretty satisfied with himself right now.  Silva's been a contributer.  Marlon Byrd has been outstanding (956 OPS).  Alfonso Soriano is hotter than he's been since the middle of 2008.  Even the Carlos Zambrano to the bullpen move has worked out pretty well so far (1.80 ERA in four appearances).  If the Cubs make the postseason, even if they stay in the hunt until August, I promise to write Jim Hendry an extended apology.  If they don't, expect more venom.


"I paid thirty-some dollars for Greinke in a mixed 5X5 league.  After a month, he's got zero wins.  Should I try to trade him?  I need pitching.  What can I expect to get?" - Steve

I ranked Zack Greinke outside of my top tier of pitchers this February for two reasons: 1.) It would be almost impossible to duplicate the season he had in 2009, so some regression was inevitable, and 2.) He still plays for the Royals, who still stink, perhaps even more than they did last year.  As a result, I don't own Greinke in any leagues.  That said, I certainly don't think Greinke's '09 was a fluke.  Even if he has several more rough outings than he did last year, he'll easily be a legitimate fantasy Ace.

After six starting in '09, these were Greinke's 5X5 numbers: 6-0, 0.40 ERA, 0.84 WHIP, 54 K, 45 IP.
This season, at the same juncture, they look like this: 0-3, 2.27 ERA, 0.98 WHIP, 33 K, 40 IP.

His strikeout rate is down a little bit, but mainly, he's just been unlucky.  Only one team, the Red Sox, has gotten to him for more than two earned runs.  Three times he's left the game with a lead and wound up with a no decision.

Sure, it's quite possible that Greinke will suffer a season of disappointments, ala Matt Cain in '07 and '08, but even if that happens, he contributions to your rate stats will make him a worthy #2 starter.  And, if you trade him now, you risk "selling low" and missing out on the stretch where he wins six in a row or eight out of ten.  At this point, I actually covet Greinke a little more than I did in the preseason.  These are the only pitchers who I would trade him for straight-up: Roy Halladay, Tim Lincecum, C. C. Sabathia, Ubaldo Jimenez, Felix Hernandez, Justin Verlander, Cliff Lee, Adam Wainwright, and Jon Lester.


"I know you've seen the PECOTA projections already.  In the ESPN magazine Baseball Think Factory says that the Angels have only a 2.5% chance of winning the AL West.  How can that be?" - Tim

I received this message before the season began, so I'll begin with the response the sent Tim at that time:

"I'm continually surprised by how poorly the 2010 Angels are performing in preseason simulations, which consistently have them finishing behind the Rangers, Mariners, and even the Athletics.  I've said repeatedly that I think the rumors of the Angels demise have been greatly exaggerated.  I don't expect they will win the division by ten games, as they did in '09, but I think they'll be at least an 85 win team and as safe a bet as anybody to win the AL West.  My only explanation for the Angels poor performance in simulations is that they had several players who had career years in '09: Jered Weaver, Kendry Morales, Erick Aybar, Juan Rivera, etc.  Even Torii Hunter and Bobby Abreu had among their best seasons.  More often than not, regression is to be expected.  I certainly think the younger players are capable of continuing to build on what they did in '09, but it is true that at some point guys like Abreu and Matsui will hit the wall.  Will it be this year?  I don't know."

It's still very early, but the Halos performance so far suggests the boys at Baseball Think Factory and Baseball Prospectus get paid the "big bucks" for a reason.  The Angels are 12-17 and, more significantly, their -43 run differential is better than only Pittsburgh, Houston, and Baltimore (and not by that much).  Still, it's a relatively small sample and they are only three games back, so one good week could be enough to get me right back on the Angels bandwagon.

I've watched Los Angeles quite a bit and I'll admit they've got some serious holes.  The Brandon Wood experiment has been a complete bust and, unless something dramatic happens, I think will be put to rest before the end of May.  Erick Aybar has not adapted to hitting leadoff and the Angels don't have anybody else who appears better suited to that role. 

The starting pitching, which I expected to be the Angels strength, despite the departure of John Lackey, has been the team's most serious issue (5.00 ERA, 12th in A.L.).  The hired guns, Scott Kazmir and Joel Pineiro, have each shown improvement in recent starts after tough Aprils.  I expect both will be at least serviceable behind the clear Ace, Jered Weaver.  But Joe Saunders has been especially abysmal (1-5, 7.04 ERA).  The Angels top prospect, Trevor Bell, continues to dominate at AAA, so don't be surprised if Saunders loses his spot.

Mike Scioscia has never been afraid of shaking things up.  Don't be surprised if Saunders, Wood, and Brian Fuentes soon find the end of their leashes.  The Angels depth of options, combined with the fact that no team in the AL West appears ready to run away from the rest, are cause for continued optimism.

Friday, February 19, 2010

PECOTA P'SMOTA

ESPN Insider is currently running a series in tandem with Baseball Prospectus on the PECOTA Projections for each of the divisional races.  PECOTA is a player projection system invented by Nate Silver, who recently became America's most famous statistician, after his wildly popular 2008 election projections at FiveThirtyEight.com.  For the last couple seasons, Baseball Prospectus has co-opted the PECOTA player projections to produce team projections as well, with full acknowledgement that there are a variety of factors which cannot be accounted for in this way.

Last season, PECOTA did a fairly good job in the AL, predicting three of the four playoff representatives and coming darn close on a number of win-loss records.  They were a bit too high on the Indians (projecting a first place finish) and the Athletics (second place), but otherwise their projections look an awful lot like what actually happened.

PECOTA wasn't nearly as accurate on the NL, netting just one of the four postseason teams (Dodgers).  BP was hardly alone in predicting the Cubs to win the Central and the Mets to win the East, though both picks ended up looking silly, as the team finished third and fourth, respectively.  Perhaps their most surprisingly call was predicting the D-Backs to take the Wild Card with the Rockies (the eventual Wild Card winner) finishing last in the West.

For 2010, PECOTA has once again yielded some pretty interesting results.  The biggest surprise comes from the AL West, where BP is not only predicting a more tightly packed race (which probably goes without saying since all four teams have been very active this offseason), but have the three-time reigning champion Angels finishing dead last.  If would be their first such finish of Mike Scioscia's career.  PECOTA projects that all three of the other franchises in the AL West will finish above .500, with the Rangers coming out on top by a four games.

Obviously, as I'm sure even BP would readily admit, the margin of error for PECOTA is relatively large.  Anytime teams are separated by five games or less, it can probably be considered a tie, which makes the AL Central results even more fascinating.  PECOTA has three teams - the White Sox, Twins, and Tigers - in a dead heat for first place, with nobody managing even a .500 record.  PECOTA has all three at 80 wins, with the Indians just three games back.  I would agree with what this projection implies, that all of these franchises have considerable limitations, and that the division will probably be decided largely by injuries and in-season maneuvering by its exceptional class of managers and general managers (Kenny Williams & Ozzie Guillen, Dave Dombrowski & Jim Leyland, Bill Smith & Ron Gardenhire, Mark Shapiro & Manny Acta).  

In the NL, PECOTA lines up pretty closely with the conventional wisdom, with both the Phillies and Cardinals expected to win their divisions by a fairly substantial margin.  In the West, BP has gotten on the Colorado bandwagon, perhaps embarrassed by their naysaying in '09 (PECOTA is, of course, a computer program, so, presumably, it doesn't experience embarrassment).  They have the Rockies winning the division, with the D-Backs finishing second, in position for the Wild Card.  Most surprising, perhaps, is that they've got the Dodgers and Giants, who many expect to battle for first, finishing at only .500, in a tie for third place.

Most people who check in on the PECOTA projections are probably interested foremost by one question, "Yankees or Red Sox?"  Last year PECOTA accurately predicted that New York would win the NL East, with Boston taking the Wild Card, and the Rays finishing third with a winning record (PECOTA actually thought Tampa Bay would be slightly better than they were).  This year they again see all three teams posting 90+ wins, but with Boston coming out on top, followed by the Yankees and then the Rays.  The caveat, of course, is that the trio is separated by only a three-game margin, so clearly, it's anybody's division.

If we re-interpret the PECOTA projections as Power Rankings, they expect the top five teams to be the 1.) Red Sox (94 W), 2.) Yankees (92), 3.) Rays (91), 4t.) Phillies/Cardinals/Rockies (88) and the bottom five teams to be 30.) Blue Jays (71), 29t.) Padres/Pirates (72), 27.) Royals (74), 26t.) Angels/Nationals (76).