Has Mike Pelfrey turned the corner? A Pitch F/X analysis

Links (6)

THT Live:Asking after Pelfrey
Published 7/16/2008 by Dave Studeman at The Hardball Times
... Meanwhile, David Golebiewski has turned to the PITCHf/x data to see what he can see and finds several things that are different about Pelfrey's most recent good starts: Increased fastball usage, trading some movement for velocity; modest improvement on the slider and re-introduction of the previously scrapped curveball. ...

The Mighty Pelf
Published 7/17/2008 at Mike's Mets
... linked to this same article I found earlier from Matthew Artus' link, and also to another one on the Driveline Mechanics site entitled Has Mike Pelfrey turned the corner? A Pitch F/X analysis. In that one, author David Golebiewski utilized Sportvision's PITCHf/x data to examine the upturn in Pelfrey's fortunes. He compared the "Good Pelfrey" (post upturn) to the "Bad Pelfrey" from early on in the season. I recommend the entire article as fascinating reading, but we'll skip ahead to the conclusions here: ...

Not a Ten
Published 7/19/2008 by joe at Mets Today
Around the Blogs Metstradamus did a nice job of illustrating Bronson Arroyo’s performance last night. Fans of Bo Derek may not want to click that link. Matthew Artus and Beyond the Boxscore rained on the Mike Pelfrey parade, Lone Star Mets thanks Scott Boras for Big Pelf, and Driveline Mechanics was somewhere in the middle, though optimistic. Where else but “Its Mets for Me” can you see photos of Marge Schott back from the dead, handing out Nazi balloons to children in Cincinnati — as well as a ...

Keep On Keepin' On
Published 7/19/2008 by Matthew Artus at NJ.com: Always Amazin'
... . David Golebiewski of Driveline Mechanics analyzes Pitch FX data to distinguish the "good Mike Pelfrey" from the "bad Mike Pelfrey. " John Delcos of the Journal-News ...

Waiver Wire: American and National League (Week 16)
Published 7/19/2008 by Derek Carty at THT Fantasy Focus
... | NYM | SP - There was a pretty good article recently at Driveline Mechanics about the changes Pelfrey has made of late, but I'm not convinced that these changes are sufficient for him to keep up his respectable 6.0 K/9 and 3.1 BB/9 since the beginning of June. Using his fastball 85 percent of the time is what I'm concerned about the most, because while the slider is improved and the curve reintroduced, what good does that do if they're being used a combined 10 percent of the time? Speculate if you wish here, but I'm not overly excited, although the ground balls should be ...

BASEBALL: Pelfrey's Stuff
Published 7/21/2008 by Baseball Crank at Baseball Crank
A more detailed breakdown of what Mike Pelfrey has been doing differently (this is before yesterday). Via THT.