Pending Pinstripes Latest Posts
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Has Jeter Lost His Swing?
01.16.11 -
A Pitch F/X Look at Cliff Lee
12.13.10
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A Pitch F/X Look at Cliff Lee
12.13.10 -
Yankees and...Crawford?
12.03.10
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06 May 2009
To start out with I have to say that I can't obviously talk about every pitcher in the Yankees organization here so I've tried to pick some of the top guys. I left out guys who have been up to New York like Melancon, Robertson and Phil Hughes. I also left off Ian Kennedy although he's been spectacular; I wanted to look at some of the other organizational names. By all means, leave a message in the comment section below if you'd like to mention someone else.
When talking about pitchers I'm going to include their basic stats and add a little taste of the au courant out there. We'll first be using QERA, or QuikERA as it's called by Nate Silver and the other members of Baseball Prospectus. I like it for a few reasons and will refer you to their introduction for a more complete assessment of its abilities. Here's a snip:
"QuikERA (QERA), which estimates what a pitcher's ERA should be based solely on his strikeout rate, walk rate, and GB/FB ratio. These three components--K rate, BB rate, GB/FB--stabilize very quickly, and they have the strongest predictive relationship with a pitcher's ERA going forward. What's more, they are not very dependent on park effects, allowing us to make reasonable comparisons of pitchers across different teams,"
For our purposes it's extremely useful to observe how a pitcher is doing outside of his defense and a relative measure of what we can expect from him in the future.
We'll also be using tRA which is provided free on statcorner, a terrific website that includes all sorts of information for all professional leagues. The full article is too long to get into, but it's more complete than FIP or any of its counterparts and since it's adjusted for park effects and for each level, it is helpful in allowing us to determine the performances of those we are examining.
So let's get to the numbers. (May 5- small sample warning)
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|
Name |
IP |
ERA |
W-L |
K |
BABIP |
BB% |
K% |
HR/BIA% |
GB% |
tRA |
QERA |
|
D. Betances |
26.1 |
4.44 |
1-3 |
30 |
0.351 |
11.77% |
25.21% |
3.23% |
54.70% |
2.37 |
3.72 |
|
A. Brackman |
29.2 |
4.55 |
0-4 |
29 |
0.337 |
10.45% |
21.64% |
3.45% |
60.90% |
4.25 |
3.83 |
|
J. Bleich |
27 |
2.33 |
2-1 |
18 |
0.264 |
6.96% |
15.65% |
4.55% |
47.20% |
3.72 |
4.48 |
|
Z. McAllister |
21.1 |
2.53 |
1-1 |
14 |
0.238 |
9.39% |
15.38% |
0.00% |
54.00% |
4.03 |
4.72 |
|
W. De La Rosa |
14 |
1.29 |
1-0 |
17 |
0.273 |
7.41% |
31.48% |
0.00% |
51.50% |
0.66 |
2.46 |
|
B. Marshall |
24.1 |
6.66 |
0-3 |
11 |
0.302 |
10.62% |
9.74% |
4.35% |
44.30% |
8.09 |
6.13 |
|
G. Kontos |
20.1 |
2.66 |
1-1 |
24 |
0.322 |
9.57% |
25.53% |
0.00% |
44.10% |
4.00 |
3.64 |
|
D. Mitchell |
30.1 |
2.1 |
4-0 |
34 |
0.211 |
3.45% |
29.31% |
3.23% |
40.90% |
1.28 |
2.43 |
|
M. Banuelos |
17.2 |
4.07 |
1-0 |
13 |
0.352 |
8.20% |
21.31% |
4.17% |
41.80% |
4.85 |
4.03 |
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Dellin Betances- The Tampa defense, which has been terrible, has certainly hurt Betances but he's actually pitched very well. He's cut down on the Line Drives, fly balls and is getting more GB outs which is important and shows up in his QERA. He still is having problems with that walk rate, but for right now he's pitched well and we shouldn't worry too much about the W-L record or ERA. The high strike out rate is extremely encouraging and he'll open a lot of eyes should he continue to pitch like this.
Andrew Brackman- Brackman certainly has not impressed as of yet but has also pitched better than his ERA would indicate. He's still struggling with control but the strikeout rate is good and the GB% is also very good. He's still not pitching up to his potential yet though and hopefully can improve as the season moves along.
Jeremy Bleich- Bleich has pitched well in the early going which is reflected in his 2-1 2.33 ERA start. The control we heard about has certainly been there as his walks have been in control. Interestingly, his QERA and his regressed tRA which predicts future performance (4.13-not shown) paint a less rosy picture- one can guess that his K%, his relatively low BABIP and GB% dirtied the water so to speak, but there's certainly nothing to complain about from Bleich early on (aside from that HR rate).
Zach McAllister- McAllister has made several good starts for Trenton so far. He's struggled with his command, a BB/PA of around 9 is way above his 2008 3.30 average. His strike outs have dipped as well but not as noticeably and due to the limited number of innings would expect him to figure this out. He may be adjusting to AA still but his overall numbers are good and as long as he regains that command, signs are encouraging. His LD% and his BABIP are both low so he may be benefiting from a bit of luck.
Wilkins De La Rosa- De La Rosa has looked great although he's only thrown 14 innings so far. His stuff is definitely playing up to its reputation as he has a swinging K% of about 20%. While 14 innings is hardly enough to draw any solid conclusions from, the early season has been good for De La Rosa fans.
Brett Marshall- Marshall has gotten off to a very poor start. He's been touched up a couple of times and the control issues we heard about are certainly a factor. He's still extremely young though and has plenty of time and the stuff to figure it all out.
George Kontos- After hearing about his inconsistency for the past few years it was still hard to dismiss what he's accomplished in his career. This year he's right back on track and was recently promoted to AAA where he had a less than impressive debut (but we can forgive him). He hasn't given up a HR yet which is nice considering his history with them and has maintained a solid K% so far. Hopefully he can pitch well in AAA and continue to shine.
DJ Mitchell- A guy most people were not talking about in the pre-season, he got a mention by John Sickles last week and has been earning that over slot draft money. The 2008 10th rounder has posted a nearly 30% K rate and his control has been outstanding. An item of note is that BABIP which is very low so he may be getting some luck. But there's no reason to sour on this guy any time soon.
Manny Banuelos- The Youngster has pitched well in his Charleston opening which is a good sign. We'd probably like him to cut down on the walks, but as an 18 year old we can understand not all of the polish is there just quite yet. Hopefully he can continue to pitch well in his challenging assignment but again, nothing but positive news so far from an extremely young bright arm.
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