Happy New Year!
Sorry for the delay, didn't realize that I didn't get this done yet.
This post has the Giants Pure Quality Start scores for the month of September 2009 and their season totals, PQS as defined in Ron Shandler's Baseball Forecaster annual book and they published the details here. I wrote on this first in 2006 and have compiled their stats on a regular basis, so I'm continuing it this season for continuity and historical comparison (there is the "PQS" label that you can click to see the old posts on this). Regular readers can skip to the next section.
This is the Quality Start with a sabermetric DIPS twist, and it gets really easy to calculate once you get used to it. I don't think it's the end all or be all, but then nothing really is that. It is, as I like to say, another piece of the puzzle. A dominating start is scored a 4 or 5 and a disaster start is scored a 0 or 1. DOM% is the percentage of starts that are dominating, DIS% is the percentage of starts that are disasters (any start under 5.0 IP is automatically a 0, or disaster).
Basically, you want to see a pitcher's DOM% to be over 40% and ideally over 50%, and you want their DIS to be under 20% and ideally under 10%. For example, Johan Santana has a 76% DOM and 3% DIS in 2006 (2.77 ERA), whereas Orlando Hernandez had a 52% DOM and 28% DIS (4.66 ERA), and Adam Eaton had a 31% DOM and 31% DIS (5.12 ERA). See my explanation down below on methodology plus read the link, there's a nice chart there showing the combination of high DOM% and low DIS%, and particularly how low DIS% is so important.
I wholeheartedly recommend buying Baseball Forecaster and learning more about their methods of analyzing baseball. It has been greatly illuminating for me, and if you want to get a taste for it without paying full price, they used to sell their old editions of their annuals on their website for half price or less (plus shipping); but that was before he sold the company off, and I haven't checked recently.
Giants Starters' PQS for 2009 Season
Madison Bumgarner - (0% DOM, 0% DIS; 0:0/1): 3
Matt Cain - (63% DOM, 6% DIS; 20:2/32): 5, 2, 4, 4, 1, 4, 3, 3, 4, 5, 4, 3, 5, 5, 5, 3, 5, INJ, 5, 4, 4, 3, 4, 4, 4, 3, 3, 5, 3, 4, 0, 5, 3
Randy "The Big Unit" Johnson- (31% DOM, 31% DIS; 5:5/16): 3, 0, 5, 0, 5, 0, 2, 0, 3, 5, 3, 2, 4, 3, 5, 1, INJ
Tim "The Kid" Lincecum - (82% DOM, 6% DIS; 27:2/33): 0, 2, 5, 5, 5, 5, 5, 4, 5, 5, 4, 3, 5, 5, 5, 5, 5, 5, 5, 3, 5, 5, 5, 5, 5, 3, 4, 5, 5, 5, 0, 5, 5
Joe Martinez - (0% DOM, 40% DIS; 0:2/5): 3, 0, 2, 2, 0
Brad Penny - (67% DOM, 17% DIS; 4:1/6): 4, 5, 3, 0, 4, 4
Ryan Sadowski - (17% DOM, 50% DIS; 1:3/6): 3, 4, 3, 0, 0, 0
Jonathan Sanchez - (41% DOM, 24% DIS; 12:7/29): 0, 3, 3, 0, 2, 2, 4, 4, 0, 0, 3, 0, 2, 5, 4, 3, 4, 5, 4, 4, 4, 5, 5, 5, 0, 0, 3, 3, 2
Barry Zito - (48% DOM, 24% DIS; 16:8/33): 0, 3, 5, 3, 4, 4, 3, 2, 3, 4, 3, 2, 0, 5, 2, 0, 4, 0, 4, 4, 3, 5, 5, 4, 5, 4, 5, 0, 1, 5, 0, 0, 4
Giants season overall - 53% DOM, 19% DIS out of 161 games counted (85:30/161); I did not count Cain's injury-shortened start against him.
Giants Month of April - 40% DOM, 25% DIS out of 20 games counted (8:5/20)
Giants Month of May - 52% DOM, 17% DIS out of 29 games counted (15:5/29)
Giants Month of June - 44% DOM, 15% DIS out of 27 games counted (12:4/27)
Giants Month of July - 62% DOM, 19% DIS out of 26 games counted (16:5/26)
Giants Month of August - 68% DOM, 7% DIS out of 28 games counted (19:2/28)
Giants Month of September/October - 48% DOM, 29% DIS out of games counted (15:9/31)
Lincecum, Penny and Cain came up big in Sept/Oct, with 4, 3, and 3 DOM starts respectively. Each also had a DIS start. Sanchez did not come up big, with only 2 DOM starts plus 2 DIS starts.
Zito was the big letdown with 4 DIS starts, though the other two were DOM. Though, relative to what they were doing all season long, each pitcher had a bit of a let down in this month plus period. Lincecum only had one DIS start all year until he doubled it in this month plus. Cain only had two before adding his one, or 50% increase. Zito, with his 4, doubled his seasonal totals up to then.
In total for the month plus, there were 9 DIS starts, the worse total for any month this season. Worse DIS% of the season too, at 29% (April was 25%). In fact, Zito's 4 DIS starts alone was almost as many as or more than the staff altogether did in any prior month: 5, 5, 4, 5, 2.
Despite this letdown on both Sanchez and Zito, the Giants actually went 8-5 in their starts. Where the losses came were with Cain and Lincecum, as the Giants went 2-4 and 2-3 respectively. Of course, the offense was a big part of that, but the opposing pitchers were part of that too, as both Lincecum and Cain faced more of the better pitchers of the opposing team.
What's Good and What's Not
A DOM at or above the 40% mark is indicative of good pitching; above 50% is great; above 70% is elite. A low DIS is also indicative of good pitching, just look at the table in the link above showing DOM% and DIS% on the axes.
If you had to chose a high DOM% or a low DIS%, pitchers tend to have a lower ERA when you have a low DIS% vs. a high DOM% (obviously if you combine both, you have a much better chance of having an elite pitcher).
2009 Season Comments
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