Aroldis Chapman

RP · BOS

MLBAM 547973

Seasons

Yr	BF	K%	BB%	xwOBA	Pts	PPG
2026	27	25.9%	11.1%	0.351	23	2.88
2025	228	37.3%	6.6%	0.230	414	5.75
2024	264	37.1%	14.4%	0.279	263	3.81
2023	250	41.2%	14.4%	0.267	253	3.56
2022	160	26.9%	17.5%	0.330	136	2.89
2021	243	39.9%	15.6%	0.308	307	4.80
2020	45	48.9%	8.9%	0.252	76	4.75
2019	235	36.2%	10.6%	0.269	387	5.78
2018	213	43.7%	14.1%	0.245	362	6.03
2017	209	33.0%	9.6%	0.251	297	4.87

2026 MLB Percentile Rankings

Season

27 BF this season — below qualified-pitcher cutoff. Bars ranked against qualified peers (faded to flag small sample).

Arsenal

FB Velocity

97.5

FB Spin

2431

Extension

7.31

Results

xwOBA

0.351

Barrel %

12.5

Hard-Hit %

50.0

K %

25.9

BB %

11.1

Chase %

19.6

Whiff %

37.0

Command & Stuff

Pitching+

Expected run-value conceded per pitch against a rational hitter, standardized against the season. 100 = avg · 110 = 1 SD better.

Pitching+

133

≈ 99th pctl

Stuff+

120

if they swing

Command+

111

out-of-zone take RV

Strike quality+

136

RV of in-zone pitches

Crushable pitches

4.4%

6 meatballs

Putaway counts (0-2, 1-2)

0.016

RV per pitch · league 0.042

-0.027 better than avg · 36 pitches

Lower RV = more wasted whiff chances when they choose not to put hitters away.

Hitter's counts (3-0, 3-1, 2-0)

0.036

RV per pitch · league 0.029

+0.006 worse than avg · 14 pitches

How often they groove get-me-overs vs. nibble safely.

Based on 135 pitches. RV = Statcast delta_run_exp; lower = better for the pitcher.

2026 Movement Profile (Induced Break)

MLB Avg.

	FF	SI	SL	FS

Usage	39%	39%	16%	6%
MPH	97.1	97.8	85.5	90.8
LHP Avg	93.2	93.0	84.7	—

2026 Tunneling

Where pitches are when the hitter commits — and where they end up. Tighter cluster on the left = more deceptive arsenal.

At Decision

23 ft out · ~280ms before arrival

At the Plate

Where they actually cross

FFSISLFS

Decision point computed from Statcast kinematics (vx0/vy0/vz0, ax/ay/az) by projecting each pitch back to y = 23 ft. Coordinates in catcher’s view: 1B on the left, 3B on the right. LHP.

2026 Divergence from a Shared Origin

Every pitch type launched from the same decision-point — how far apart they end up by the plate. Bigger fan = harder arsenal to square up.

Distances from origin (in inches) show how far each pitch type separates itself from the common launch point by plate arrival. LHP.