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Exactly how big an impact have those trades had? August 26, 2015

Posted by tomflesher in Baseball.
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The Mets made some huge deals near the trade deadline to pick up Juan Uribe and Kelly Johnson on July 25, Tyler Clippard on July 28, and Yoenis Cespedes on August 1. (Those are the dates of the first games the players appeared in for the Mets.) Let’s take a look at the effects of those trades. If there was no effect from the trades, then the Mets’ improvement would have to be basically indistinguishable from chance.

Juan Uribe on July 25; credit slgckgc on Flickr

Juan Uribe on July 25; credit slgckgc on Flickr

  • April: The Mets scored 97 runs and and allowed 81 for a 16-run differential and a .581 Pythagorean expectation. They went 15-8 for a win percentage of .652, giving them a Pythagorean differential of .071 and 1.63 Wins Above Expectation.1
  • May: 95 runs scored, 105 allowed, 11-14, for an expected .455 winning percentage, .440 actual winning percentage, -.015 differential and -.36 WAE.
  • June: 84 runs scored, 105 allowed, 9-15, for an expected .413, actual .375, -.038 differential and -.90 WAE.
  • July: 89 runs scored, 83 allowed, 11-12, for an expected .532, realized .478, -.053 differential and -1.23 WAE.
  • August: 137 runs scored, 84 allowed, 16-5, for an expected .709, actual .762, .053 differential and 1.11 WAE.

Clearly, the jump in August has been enormous, especially since they only played 21 games in August; in fact, the Mets averaged 3.76 runs per game through July, but 8.2 in August. In fact, if we start on July 25, the Mets have averaged 9.26 runs per game. Between Uribe, Johnson, and Cespedes, that’s a huge improvement – five and a half runs per game!

What about Clippard? Well, for one, the Mets averaged 3.9 runs allowed through July; since August 1, we’re at 4.0. However, Clippy’s ERA with the Mets is 1.93, and the bullpen ERA overall is 3.08. The August ERA for the bullpen has been an alarming 3.59, but that includes the hilarious trip to Colorado, too. That makes Tyler’s low ERA even more impressive. (For the record, future Mets closer Hansel Robles has a 3.27 August ERA – that’s 4 ER in 11.0 IP – and current closer Jeurys Familia hasn’t allowed a run in 11 1/3 innings pitched in August.) Clippy’s definitely value-added in the bullpen, especially considering that the alternative might be Dario Alvarez or Dillon Gee unhappy in his role.

Most notably, though, since the Mets picked up Uribe and Johnson, their wins above expectation have been statistically zero. They’ve been playing to their potential, not above it, since July 25.

We’re in for an interesting end to the year.


1 Pythagorean differential is computed as (Winning percentage – Pythagorean Expectation). Wins Above Expectation is computed as Pythagorean differential times games played. They measure the same concept but are scaled differently.

What does Clippard add? July 28, 2015

Posted by tomflesher in Baseball, Economics.
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"Tyler Clippard 2011" by Keith Allison on Flickr

“Tyler Clippard 2011” by Keith Allison on Flickr

The Mets acquired setup man/closer Tyler Clippard from Oakland for starting pitcher Casey Meisner. Oakland is going to eat $1 million of Clippard’s $8.3 million deal, making Clippard the Mets’ highest-paid reliever; Bartolo Colon is the only pitcher who earns more.

Though Ty is arbitration-eligible this year, his yearly salary is about double Bobby Parnell‘s $3.7 million deal; for the record, Heath Bell was earning $9 million yearly in his last contract. Clippard’s contract is big, but not out of the question – his 2014 stats included a .995 WHIP and a 3.57 KBB ratio. Closing for Oakland, Tyler has a 1.19 WHIP and a 1.81 KBB. Somewhat alarming is his drop in BAbip this year – it was .255 in Washington, and only .217 this year in Oakland. That means that some of those hits are due to defense, but his walk percentage also ballooned from 8.3% to 12.6%. Of course, some of that is due to the fact that Clippard is facing American League batters, including specialized designated hitters.

What the Mets know they’ll get out of Clippard is a solid reliever who can shore up what’s been a fairly lights-out bullpen, but help bridge the gap from the early innings. Yeah, yeah, Familia has blown some saves recently, but over the course of the season the Mets have 10 blown saves, which is below the National League median of 12. The Mets are also near the bottom of the league in losses by relievers – they have 9 losses in relief this year, behind only Milwaukee with 8. This will allow the Mets to go to a strong, reliable arm early, both relieving (ha!) some of the pressure on starting pitchers like Jon Niese (who’s been left in while struggling because, hey, what’s the alternative?) and preventing the Mets from needing to rely on Carlos Torres and Alex Torres. Though this leads to a higher number of pitchers per game, having a reliable endgame pipeline with Jenrry Mejia, Clippard, Bobby Parnell and Jeurys Familia makes it easier to go lights out. It will also allow the Mets to develop Hansel Robles by judiciously building him into high-pressure situations while maintaining some options behind him.