Ervin Santana Preview

Updated "3D" charts

Here's Ervin Santana's pitch data. Pardon the numbering, but he looks like a three pitch guy to me, but not to k-means. I fixed it, so you have pitches numbers 1, 3 and 4. ESPN gives him four pitches - splitting my #4 into a curve and a slider. If I incorporate more data into this sample, I might be able to find that split, too. You can see a hint of it already, but the split k-means made was not consistent with a slider/curve. Blah blah blah. Tables then charts coming up:

#	MPH	pfx_x	pfx_z	SpinDir	SpinRate	px	pz	x0	z0
1	87.5	-3.08	6.60	204.6	898.6	-0.39	2.55	-1.10	6.08
3	92.7	-5.69	8.88	212.6	1345.5	-0.05	2.45	-1.05	5.96
4	80.4	3.88	-1.43	221.7	488.6	0.22	1.87	-0.92	6.28

#	B	CS	SS	F	X	HR
1	28	8	4	4	18	0
3	63	45	4	38	37	1
4	57	32	20	17	14	0

#	B	CS	SS	F	X	HR
1	45.16%	12.90%	6.45%	6.45%	29.03%	0.00%
3	33.51%	23.94%	2.13%	20.21%	19.68%	0.53%
4	40.71%	22.86%	14.29%	12.14%	10.00%	0.00%

#	SwRt	Whiff
1	41.94%	15.38%
3	42.55%	5.00%
4	36.43%	39.22%

In case you're wondering, here are league averages (for pitchers with >500 pitches)

B	CS	SS	F	X	HR
36.56%	17.48%	8.73%	17.89%	18.65%	0.69%

SwRt	Whiff
45.96%	19.00%

Ervin's "pitch #4" is very effective

Release Points


averaged by cluster



Spin Movement





Plate Location





Here's "3D" from the catcher's perspective - the ball gets larger as it approaches



Now, from first base. Ball size is larger as it gets closer - to the viewer, not the plate. For a lefty throwing, you have the ball larger at the right side as it goes away, towards 3rd base.