MLB / Descriptive count context

Pitch profiles for every count.

Explore pitch selection and recorded outcomes by the balls and strikes before a pitch. Compare individual counts, then inspect broader count classes in the published local 2025 Statcast snapshot.

Exact count view

What changes before the next pitch?

Local 2025 Statcast pull. Snapshot 2026-07-25. 12 of 12 counts available.

Choose the balls-strikes count before a pitch. Each cell shows the selected published measurement; a count cohort is not a rate denominator.

Strikes before pitch

Balls
before pitch0 strikes1 strikes2 strikes0 balls1 balls2 balls3 balls

Selected count

0-0 before pitch

Even count. Balls and strikes are the count before this pitch.

Pitch cohort n: 178,407
Top pitch: FF
Top pitch share: 32.77%
In-zone rate: 55.03%
Coded strike rate: 50.38%

Compare with

0-0: 55.03%; 0-0: 55.03%; signed difference: +0.00 pp.

Descriptive comparison only. It applies no weighting or statistical inference.

The source does not publish pitch-type, coded-strike, or in-zone rate denominators for exact counts. n is the count cohort size only; it is not used as a rate denominator. Coded strikes are Statcast type S (called, swinging, and foul strikes), not whiffs.

Published count states (12 of 12 available)

Published exact-count values
Count	Class	n	Top pitch	Top share	In zone	Coded strikes
0-0	Even	178,407	FF	32.77%	55.03%	50.38%
0-1	Pitcher ahead	89,820	FF	28.24%	46.04%	42.31%
0-2	Pitcher ahead	46,656	FF	31.77%	32.41%	36.03%
1-0	Pitcher behind	67,516	FF	31.04%	56.26%	49.90%
1-1	Even	69,473	FF	27.95%	51.16%	45.42%
1-2	Pitcher ahead	67,807	FF	30.51%	38.41%	40.69%
2-0	Pitcher behind	23,053	FF	37.59%	60.17%	51.69%
2-1	Pitcher behind	35,667	FF	31.17%	57.87%	48.27%
2-2	Even	57,832	FF	30.81%	47.57%	44.93%
3-0	Pitcher behind	7,457	FF	65.12%	62.93%	57.23%
3-1	Pitcher behind	14,543	FF	42.50%	62.84%	50.04%
3-2	Pitcher behind	34,806	FF	37.06%	59.94%	48.27%

The broader count classes

These grouped views publish separate rate denominators. Their overlapping samples cannot be added to the partition.

behind: balls > strikes (pitcher behind; hitter's count)

Selected class

Published pitch mix

Class n: 183,042
Pitch-type n: 181,462

Every published pitch type within behind
Pitch type	Pitch count	Published frequency
FF	63,970	35.25%
SI	34,992	19.28%
SL	23,846	13.14%
FC	16,880	9.30%
CH	16,350	9.01%
ST	9,851	5.43%
CU	7,850	4.33%
FS	4,126	2.27%
KC	2,146	1.18%
SV	622	0.34%
Unpublished remainder	Not published	0.47%

Pitch frequency records the class-wide mix. The unpublished remainder is 100% minus the sum of the rounded published frequencies. For conditional next-pitch probability after a prior pitch, use the behind sequencing view.

Across all classes

Outcome proxies with their own denominators

Coded strikes are type == S; they are not a swinging-strike measurement. Each type outcome uses n_type, while in-zone rate uses n_zone.

Class	Coded strike rate, not swinging strike rate (n_type)	Ball rate (n_type)	In-play rate (n_type)	In-zone rate (n_zone)
behind	49.81% n 183,042	30.65% n 183,042	19.54% n 183,042	58.55% n 181,462
even	48.22% n 305,712	35.97% n 305,712	15.81% n 305,712	52.74% n 304,924
ahead	40.34% n 204,283	41.32% n 204,283	18.34% n 204,283	40.39% n 204,107
two_strike	42.10% n 207,101	35.84% n 207,101	22.06% n 207,101	43.24% n 206,876
three_ball	49.90% n 56,806	26.43% n 56,806	23.67% n 56,806	61.06% n 56,216

Count-class structure

Partition: behind, even, ahead

behind

balls > strikes (pitcher behind; hitter's count)

Class n: 183,042
Pitch-type n: 181,462

even

balls == strikes

Class n: 305,712
Pitch-type n: 304,924

ahead

strikes > balls (pitcher ahead)

Class n: 204,283
Pitch-type n: 204,107

Overlapping views: two-strike and three-ball

two_strike

strikes == 2 (putaway lens -- OVERLAPS the partition)

Class n: 207,101
Pitch-type n: 206,876

Overlapping view; it is not additive with the partition.

three_ball

balls == 3 (must-throw-strike lens -- OVERLAPS the partition)

Class n: 56,806
Pitch-type n: 56,216

Overlapping view; it is not additive with the partition.

Source fields: mlb_count_leverage.json -> by_leverage_class[].n, pitch_type_n, pitch_mix_top, and outcome_proxies.

Reading trail

Read first: Read the count-state cards before comparing pitch mixes across leverage classes.

Next question: Which previous pitch changes the next-pitch probability inside a count class?

Read the analysis: Pitch velocity shape: what the distribution says, and what it does not