Edge Labs · Research

Pitcher Lab

A pitch-level explorer over Statcast for one pitcher. Search an arm, set the filters, and read the arsenal: usage, velo and spin, whiff %, strike %, xwOBA against, and hard-hit %. Every number shows the sample (n) behind it. Research and context, you decide.

Mitch Keller RHP

2023-25
8845 pitches in sample Change pitcher

8845 Pitches

19.4% Whiff %

66.0% Strike %

.321 xwOBA

39.5% Hard-hit %

The arsenal

9 pitch types in sample

Pitch	Usage	n	Velo	Spin	Whiff %	Strike %	xwOBA	Hard-hit %
FF Four-seam	30%	2652	94.6	2396	19.7% n=1318	67.7%	.320 n=647	41.2% n=391
SI Sinker	21%	1867	93.4	2421	9.9% n=809	68.3%	.297 n=531	42.4% n=387
ST Sweeper	17%	1489	82.7	2750	24.6% n=756	65.7%	.283 n=467	34.3% n=303
FC Cutter	12%	1097	89.9	2467	19.7% n=568	67.7%	.370 n=285	33.6% n=226
CU Curveball	8%	733	78.0	2624	26.6% n=256	54.8%	.368 n=119	40.9% n=88
SL Slider	8%	684	87.2	2515	24.7% n=368	65.5%	.350 n=207	45.5% n=156
CH Changeup	4%	316	89.6	1929	15.0% n=153	61.4%	.380 n=85	41.1% n=73
UN Unknown	0%	5	·	·	— n=0	100.0%	— n=0	— n=0
PO Pitchout	0%	2	90.9	2350	— n=0	0.0%	— n=0	— n=0
ALLoverall	100%	8845	89.6	2481	19.4% n=4228	66.0%	.321 n=2341	39.5% n=1624

Whiff % = whiffs ÷ swings · Strike % = strikes ÷ pitches · xwOBA = avg expected wOBA on contact · Hard-hit % = 95+ mph ÷ batted balls · n shown on every rate · descriptive context, not a pick