Is Tony Pena Jr. the next Rafael Betancourt?

July 22, 2008 – 7:14 am

Upon checking the box scores this morning, I came across the following line during a 19-4 Detroit drubbing of the Royals:

Pena  1.0 IP 0H 0R 0ER 0BB 1K

Expecting to see the usual hilarity that ensues when a position player takes the mound (a la Jamie Burke), I queued up Pena’s inning on MLB.TV.

Wow. Instead of poorly-placed, low-80’s junk, Pena was bringing it. The offensively- challenged shortstop hit the low-90’s on several occasions, and even mixed in a few curveballs. Intrigued by Pena’s performance, I decided to take a look at his Pitch F/X data for the outing.

The chart shows the vertical and horizontal movement (in inches) that Pena Jr. got on his pitches, relative to a pitch thrown without spin. The X axis shows the amount of horizontal movement on Tony’s pitches, while the Y axis shows the amount of vertical movement on the pitches. The chart is from the view of the catcher, so pitches with a negative horizontal (X axis) value are tailing in on a righthanded hitter. Pitches with a low vertical (Y axis) value are moving down in the strike zone; the lower the Y value, the more downward movement the pitch has.

Type      MPH      X(In.)      Z(In.)      #Thrown

FB          90.2      -7.90     3.90        8

CB         75.9        7.76      0.09       4

Type is the type of pitch thrown. FB=Fastball, CB=Curveball. MPH is the average initial velocity of the pitch. X is the amount of horizontal movement on the pitch. Remember, a negative X value means the pitch is moving toward a righthanded batter. Z is the amount of vertical movement on the pitch. The lower the Z value, the more downward movement on the pitch. #Thrown is the number of times that Pena threw each pitch.

Color me impressed. The career .236/.255/.316 hitter ramped his heater into the low-90’s, with an average velocity of 90.2 MPH. In addition, the pitch had plenty of tailing action in on Tiger righthanders (-7.90 X) with sinking action to boot (3.90 Z).

Pena’s “slurve” broke away quite a bit from righthanders (7.76 X) while also displaying some tilting action (0.09 Z). Pena actually caught Tigers backstop Ivan Rodriguez looking on a sweeping breaking ball. Pena can now say that he struck out a future hall of famer.

This “analysis” is mostly tongue-in-cheek, but it does at least make you wonder if Pena Jr. would be more serviceable as a reliever than as a shortstop. One of the Royals announcers even alluded to Rafael Betancourt, a converted shortstop who has gone on to have a successful major league career as a fastball-oriented reliever. Sure, it’s an apples-to-oranges comparison (Betancourt began that transition in 1997 in the minors, made stops in Japan and suffered through injury woes), but the premise is still the same as we have seen from other converts: Pena Jr. just not going to hit enough to play, so why not give that live arm a shot on the mound? 

Let’s face it, Pena Jr. cannot hit. At all. With zero pop (.80 ISO), patience (17 career walks) or contact ability (16.6 K%), he’s going to have to cover an ungoldy amount of territory to be worth employing on a regular basis. The pitching sample size is incredibly small, but I’m sure that some members of the Royals organization are at least pondering the idea of letting Pena Jr. unleash some high heat, as opposed to making a futile attempt to hit it.

David Golebiewski is a contributing writer for Driveline Mechanics, The Transaction Guy on the MVN Network, and Inside Edge Scouting Services. David is a Journalism major at Duquesne University. To contact David, drop a line at david@drivelinemechanics.com or golebie1029@duq.edu

News: Period of Absence

July 18, 2008 – 2:17 am

Well, everyone, I am writing from my home computer for the last time in this apartment, as nearly everything else (except clothes) are packed for my move cross-town from Lake City to Ballard. My birthday is today (I’m 25), my bachelor party spans this weekend, and then I’m getting married on Thursday. Internet won’t be set up in my house until next Friday, during which time I will be in San Diego for my honeymoon, watching the Padres and Diamondbacks in addition to touring the San Diego Zoo and relaxing on the beach.

So, in other words, don’t expect any substantive updates from me in the near future! Hopefully the new writers will hold down the fort before we transition to the SB Nation network.

A little about myself…#2

July 17, 2008 – 10:01 am

I’m Nick Mueller and I too am one of the new writers here at Driveline Mechanics thanks to Kyle and I’ll be focusing on the performance/mechanics of mostly prospects or the “hot” rookies.  For a little about me:

I guess to put it bluntly, my official qualifications/experience are nill.  I’m a baseball nut who has spent borderline unhealthy amounts of time watching baseball and reading anything and everything I can get.  So much so it has extended into my “real” life as I’m minoring in statistics solely to understand the methods behind the more advanced metrics.  Posting here will be my first regular contribution to a site; I’m sure I’ll take my lumps but we’ll all get through it here.

Unofficially however, I have been able to watch scores of games with professional amateur scouts to get a peek into that world over the past few years.  I’m not even going to begin to say I’m on the level of some of the experienced scouts—the best way I can describe to you the depth of what some of these guys know and see is that they are just watching a different game from everyone else—but I do have a pretty good feel for the game.

That’s really all I have for now, hopefully posting real analysis will be a better intro to what I bring to the table.

HR Derby: Josh Hamilton

July 16, 2008 – 7:17 pm

I have to run out to a baseball game myself, but I thought this clip worth posting - Josh Hamilton taking one (of many) baseballs out of the yard at Yankee Stadium during the HR Derby:

You can learn a lot just by looking.

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

July 16, 2008 – 11:20 am

The New York Mets had grandiose visions for Mike Pelfrey when the organization selected him 9th overall in the 2005 Amateur Draft. A lanky, 6-7 righthander from Wichita State, Pelfrey was pegged as a major league-ready talent who only lasted until the 9th pick because of Scott Boras-induced bonus demands. Equipped with a “projectable” pitcher’s frame as well as a plus fastball with sink and run, the former Shocker was expected to develop into an ace in short order.

Problem was, the scouting report on Pelfrey entering the 2008 campaign read entirely like the pre-draft 2005 report: an enticing sinker, but little in the way of secondary offerings. Pelfrey scrapped his curveball in favor of a slider, but neither breaking ball showed much promise and his changeup was rarely utilized. A one-trick pitcher, Pelfrey produced middling results with the Mets in 2006 and 2007:

‘06: 21.1 IP, 5.49 ERA, 5.54 K/9, 5.11 BB/9, 54 GB%

‘07: 72.2 IP, 5.57 ERA, 5.61 K/9, 4.86 BB/9, 49 GB%

2008 also started out inauspiciously for Pelfrey, as he slogged through the first two months of the season with middling peripherals. However, since the calender turned to June, Pelfrey has performed considerably better…

April/May: 56 IP, 4.98 ERA, 4.66 K/9, 4.01 BB/9, 1.35 GB/FB

June/July: 52.2 IP, 2.24 ERA, 6.03 K/9, 3.10 BB/9, 2.46 GB/FB

His peripherals aren’t top shelf, mind you, but he’s whiffing almost a batter and a half per 9 more while walking almost one less, while also inducing a ton of grounders.

In other words, everything is trending up for Pelfrey. Is his improvement simply a sample-size mirage, or is his performance predicated on changes in his pitch selection and quality? To find out, I am going to examine Pelfrey’s Pitch F/X data, splitting the data into two groups: Bad Pelfrey (April/May) and Good Pelfrey (June/July), comparing the two to see any noted changes in pitch caliber and repertoire. If Pelfrey is indeed doing something different over the past two months, perhaps his improvement is legitimate, indicative of a matured pitcher better utilizing his talents. Conversely, if the two sets appear the same, perhaps he’s just going through an aberrant stretch and is destined to return to his previous level of performance.

Read the rest of this entry »

News: We’re Moving!

July 15, 2008 – 4:55 am

Well, sort of. Driveline Mechanics will soon be a partner in the SB Nation Network, host of team blogs such as Athletics Nation and DRays Bay in addition to some great independent baseball blogs like Minor League Ball and Beyond the Box Score.

What does this mean for you? Well, for starters, to comment you’ll now need to register an account at SB Nation - but don’t worry, it’s really easy. Driveline Mechanics will also see an increase in traffic through the other partners in the SB Nation network, and the backend of the software should be easier to maintain and work with. You’ll also get the option of Fanposts, where you get to post to a separate page with your thoughts about all things baseball. It’s like a user’s blog within the blog - and valued contributors to Fanposts may see their work promoted to the main page, or possibly brought on to the staff as a part-time writer!

The one problem in moving over to the SB Nation Network is that they don’t have a migration tool to move our WordPress articles over to the new content site. However, copying and pasting the finished product works rather well using through rich text editor, so manually migrating articles won’t be a problem. I plan on copying over the more interesting articles on a periodic basis so new users can see them and so I can revisit my analysis, but if there’s something you specifically want to see (or can’t live without), please comment to this post and let us know so we can mark it for migration.

To all the users who comment on posts and read the site on a regular basis: Thanks - we couldn’t have done it without you. Traffic stats and the number of comments left on the site helped convinced Tyler Bleszinski (President of SB Nation) to add our site to his network, so you played a big role in this.

I can’t believe that we’ve only been up for two months or so and we’re seeing such major changes - three new writers hired on, moving to a new network, and lots of interest from the readers about pitching mechanics in general. Though I knew there was a big hole in the Internet when Carlos Gomez stopped writing over at The Hardball Times, I guess I drastically underestimated the baseball fanatics out there who cared about this niche.

In my opinion, I see the video analysis of pitching/hitting mechanics from a scientific and performance point of view as the next Moneyball frontier where “nerds” like myself are looked down upon by front office types and scouts because we never played the game at a high enough level to understand. However, just like it’s impossible to tell the difference between a .360 OBP and .375 OBP hitter with the naked eye (even if you watched all 162 games), it is impossible to tell what the pitcher’s arm is doing without slow-motion (and ideally high-speed) video from various angles. The human eye can only see at 30 frames per second, while capturing the relevant data from a pitcher’s delivery takes several hundred frames per second for the most accurate analysis. Hopefully with time and the dissemination of information by sites like Saber-Scouting, Driveline Mechanics, and The Hardball Times (even though we all disagree on some things), front offices and scouts will start to accept the fact that Rick Peterson was right about at least this one thing:

“In God we trust; all others must have data.”

A little about myself…

July 14, 2008 – 11:43 am

Hi, my name is David Golebiewski. Kyle was gracious enough to let me contribute to this great site, and I’d like to introduce myself to you fine readers out there.

For the past two years, I have contributed to Most Valuable Network, first for the Pittsburgh Lumber Company (a Pirates-centric blog) and most recently for The Transaction Guy, a blog that breaks down and analyzes the most prominent transactions from around the league. In addition to feeding my baseball addiction, I am currently enrolled at Duquesne University as a Journalism major.

For Driveline Mechanics, I will be contributing transaction analysis, along with analysis of Pitch F/X data.

I really look forward to providing some additional thoughts to this already outstanding site. If anyone would like to contact me, whether to suggest an idea for a post or for any other reason, email me at david@drivelinemechanics.com 

Thanks,

David Golebiewski

Welcome New Hires!

July 14, 2008 – 5:27 am

I am proud to announce that I’ve added three new writers to Driveline Mechanics! Here they are, along with their primary duties:

  • Josh Kalk - Pitch f/x Analyst
  • Nick Mueller - Performance Analyst
  • David Golebiewski - Transactions Analyst

You may know some of these authors - Josh writes for The Hardball Times and David writes for Most Valuable Network, both doing similar work as they will be doing here.

They will be making individual posts in the coming days to introduce themselves and what their backgrounds are. Thanks to everyone who applied, as I received a huge turnout from the readers, for which I am very appreciative of!

There is big news coming in the next week or two (besides my wedding, my honeymoon, my trip back to Cleveland, moving into a new house..) that I think all the readers are going to be very excited about. Unfortunately I can’t divulge it just yet, but after all the behind-the-scenes work is done, you’ll be the first to know.

Trade Analysis: Rich Harden (analysis of Sean Gallagher, too!)

July 12, 2008 – 5:21 am

Sean Gallagher - Traded to the Athletics
Sean Gallagher - The Biggest Return Piece in the Rich Harden Deal

When I solicited your views for the Rich Harden trade, the responses were varied amongst both Cubs and A’s fans. Make no bones about it - the A’s dealt a high-risk but high-impact player in Rich Harden and received a group of mediocre to above-average talent blocked at most positions in the Cubs’ system. However, is this such a bad thing? Remember that Harden hasn’t thrown 200 innings in his professional career ever, and the last two years he has lost significant time to injury. As a result, Rich Harden is no longer throwing a breaking ball, instead becoming a two-pitch (fastball/changeup) pitcher. How he gets it done with just two pitches as a starter is beyond me, but it is a testament to his amazing ability.

Let’s take a look at the pros and cons of the package, and as a bonus, we’ll take a look at Sean Gallagher’s pitching mechanics - pulled straight from his recent start for Oakland, where he led the A’s to victory over division rival Los Angeles of Anaheim, striking out seven in his debut…

Read the rest of this entry »

News: Hiring Process

July 12, 2008 – 4:02 am

Hey everyone! The response to our post looking for writers and interns has been amazing - the emails are still pouring in, and I haven’t had the chance to respond to all of them. Rest assured, however, that I am poring over all the responses and picking out the best people that can contribute to Driveline Mechanics, and hopefully we’ll have two or even three new writers by next week.

Not to tip my hand too much, but I’m planning on adding writers for the following subjects:

  • In-depth weekly Pitch f/x analysis
  • Weekly transaction reports around the league
  • Standard sabermetric analysis of players and teams
  • Pitching/hitting mechanics intern

Thanks again for your response, and keep those emails coming!