He kept his fastball down alright! he kept everything down, in the dirt even!
9 of the pitches below the strike zone were fastballs
8 were change-ups
7 were sliders
5 were curves (which isn't bad)
Next outing I'd like to see him not drill for oil.
Relative to total pitches thrown?
Buchholz 4/17 Frequency Table (Number of pitches per type per height bin)
| pz (feet) | CH | CU | FF | SL |
| 0-1 | 4 | 2 | 5 | 5 |
| 1-2 | 8 | 4 | 17 | 4 |
| 2-3 | 7 | 2 | 26 | 7 |
| 3-4 | 1 | 0 | 11 | 2 |
| 4-5 | 0 | 0 | 2 | 0 |
| SUM | 20 | 8 | 61 | 18 |
Buchholz 4/17 Normalized Percentages (Pitch type by height bin)
| pz (feet) | CH | CU | FF | SL |
| 0-1 | 0.2 | 0.25 | 0.08 | 0.28 |
| 1-2 | 0.4 | 0.5 | 0.28 | 0.22 |
| 2-3 | 0.35 | 0.25 | 0.43 | 0.39 |
| 3-4 | 0.05 | 0 | 0.18 | 0.11 |
| 4-5 | 0 | 0 | 0.03 | 0 |
(pz is the height in feet from the ground, I binned the pitches in each 1 ft height band and then normalized by total pitches thrown -- FF = fastball, CH = changeup, CU = curveball, SL = slider)
Quantitatively he really buried the CH, CU, and SL when he needed to. "Drilling for oil" with these pitches (especially the changeup) are actually very good signs; when he keeps the changeup between 0-2 feet (a little above the knees or below) it means he started the pitch in the middle of the strikezone (if you are sitting fastball) and he should a lot of swinging strikes if he hides the ball well*. I'd go so far as to say that only having 60% of your change at or below the knees (12/20 pitches) is actually not a high enough ratio since it means you are leaving 40% up where they are easily hittable if you get the read (or guess) right. A nice side effect to keeping offspeed pitches down is that even if the opposing batter picks "change" or "curve" it's hard to do much about it if you make a good pitch.
While he did have some fastballs down in the zone (including a few skipped stones), his trouble (again) was the disproportionate number of FF
up in the zone. 39 of his 61 fastballs were either in the middle of the strike zone (heightwise) or higher. Probably not a long-term recipe for success. In this case we need more pitches down-- we want to see that maximum in height frequency go from the 2-3 ft bin to the 1-2 ft bin.
* One thing that should be noted, is that the Rays did an extremely good job laying off changeup down, not swinging at any that were below 1.7 ft (10 of them). In fact they laid off 2-3 that were technically in the normalized strike zone but called balls by the HPU. I'll have to dig around for some more numbers, but you'd think ~1-2 feet is prime swinging strike territory. Kind of surprising that he didn't get any with his go-to pitch down there yesterday. As for the curve and slider; he got a couple more swings and misses at those when they were way down (1-1.5 feet) but again, the Rays still did an extremely good job not going out of the zone down. Honestly, I'm actually surprised at the discipline they had when I actually look at the raw data as opposed to what I remember from watching the game yesterday.
EDIT: I hate tables; that's the best I'm doing for now.
Edited by czar, 19 April 2010 - 01:02 AM.