BIGLEAGUE

Boston Red Sox · Pitcher · #44

Aroldis Chapman

Age 386' 4" · 235lbBats L · Throws LDebut 2010From Holguin

ERA

1.92

W-L

3-4

K

71

WHIP

1.12

WAR

1.6

FIP

2.50

Awards

20 major honors

World Series Championship ×2

2016 · 2023

All-MLB First Team

2025

All-MLB Second Team

2019

AL Reliever of the Year ×2

2019 · 2025

All-Star ×9

2012 · 2013 · 2014 · 2015 · 2018 · 2019 · 2021 · 2025 · 2026

AL Reliever of the Month ×5

2017 · 2019 · 2025 · 2026

League Percentile

2026 season · percentile vs 46 qualified pitchers
ERA
98
1.92
WHIP
62
1.12
Strikeouts
0
71
K/9
96
12.37
Wins
0
3
Bottom of leagueAverage (50)Top of league

⚠ Below the qualified innings threshold. Percentiles are for reference only.

the entire league · by ERA

Top 2%

Aroldis Chapman's ERA (1.92) ranks above average among 46 qualified pitchers. The number on each bar is a percentile (higher is better); use the tabs to change the comparison pool.

PITCHING

Season · Career
CategoryGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2026 Season531.92343551.271231.12
Career9162.486352402873.014024311.08

Hover over a stat for its definition.

ARSENAL

Pitch arsenal · 2026 usage and average velocity
Four-Seam37.1%avg 156 km/h
Sinker32.5%avg 158 km/h
Slider18.2%avg 138 km/h
Splitter12.2%avg 145 km/h

ADVANCED

Advanced metrics · 2026 season

BABIP

.283

K/9

12.37

BB/9

4.01

HR/9

0.52

Quality starts

0

Whiff%

30.4%

GAME LOG

Last 10 games · includes team result
DateOppInningsHitsERWalksStrikeoutsTeam
09.23vs CLE1.00003W
09.13vs KC1.00023W
09.12vs KC1.00010W
09.06@ BAL1.01002W
09.04@ BAL1.00001W
09.03@ BAL1.02202W
08.31vs SEA1.00002W
08.24@ MIA1.01001W
08.23vs SF1.00001W
08.21vs SF1.00013W

SPLITS

Situational splits (2026)

Home

Opp AVG.184
IP27.2
K37
WHIP1.34

Away

Opp AVG.191
IP24.0
K34
WHIP0.88

vs LHP

Opp AVG.185
IP14.2
K21
WHIP1.23

vs RHP

Opp AVG.188
IP36.2
K50
WHIP1.09

RISP

Opp AVG.137
IP15.1
K21
WHIP0.85

YEAR BY YEAR

Year-by-year · Career trends

ERALower is better

▲ Trending down year over year
ERA by yearFrom 2.03 in 2010 to 1.92 in 2026. Lower is better for this stat.2010 ERA: 2.032.0320102011 ERA: 3.6020112012 ERA: 1.5120122013 ERA: 2.5420132014 ERA: 2.0020142015 ERA: 1.6320152016 ERA: 1.5520162017 ERA: 3.2220172018 ERA: 2.4520182019 ERA: 2.2120192020 ERA: 3.0920202021 ERA: 3.3620212022 ERA: 4.464.4620222023 ERA: 3.0920232024 ERA: 3.7920242025 ERA: 1.171.1720252026 ERA: 1.921.922026
Show yearly figures
ERA year-by-year details
YearERA
20102.03
20113.60
20121.51
20132.54
20142.00
20151.63
20161.55
20173.22
20182.45
20192.21
20203.09
20213.36
20224.46
20233.09
20243.79
20251.17
20261.92

WHIPLower is better

▲ Trending down year over year
WHIP by yearFrom 1.05 in 2010 to 1.12 in 2026. Lower is better for this stat.2010 WHIP: 1.051.0520102011 WHIP: 1.3020112012 WHIP: 0.8120122013 WHIP: 1.0420132014 WHIP: 0.8320142015 WHIP: 1.1520152016 WHIP: 0.8620162017 WHIP: 1.1320172018 WHIP: 1.0520182019 WHIP: 1.1120192020 WHIP: 0.8620202021 WHIP: 1.3120212022 WHIP: 1.431.4320222023 WHIP: 1.2520232024 WHIP: 1.3520242025 WHIP: 0.700.7020252026 WHIP: 1.121.122026
Show yearly figures
WHIP year-by-year details
YearWHIP
20101.05
20111.30
20120.81
20131.04
20140.83
20151.15
20160.86
20171.13
20181.05
20191.11
20200.86
20211.31
20221.43
20231.25
20241.35
20250.70
20261.12

Strikeouts

▼ Trending down year over year
Strikeouts by yearFrom 19 in 2010 to 71 in 2026.2010 Strikeouts: 191920102011 Strikeouts: 7120112012 Strikeouts: 12212220122013 Strikeouts: 11220132014 Strikeouts: 10620142015 Strikeouts: 11620152016 Strikeouts: 9020162017 Strikeouts: 6920172018 Strikeouts: 9320182019 Strikeouts: 8520192020 Strikeouts: 2220202021 Strikeouts: 9720212022 Strikeouts: 4320222023 Strikeouts: 10320232024 Strikeouts: 9820242025 Strikeouts: 8520252026 Strikeouts: 71712026
Show yearly figures
Strikeouts year-by-year details
YearStrikeouts
201019
201171
2012122
2013112
2014106
2015116
201690
201769
201893
201985
202022
202197
202243
2023103
202498
202585
202671
YearTeamGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2010CIN152.0322013.11951.05
2011CIN543.6041150.071411.30
2012CIN681.51553871.2122230.81
2013CIN682.54453863.2112291.04
2014CIN542.00033654.0106240.83
2015CIN651.63443366.1116331.15
2016NYY312.01302031.14480.89
2016CHC281.01111626.246100.83
2016—591.55413658.090180.86
2017NYY523.22432250.169201.13
2018NYY552.45303251.193301.05
2019NYY602.21323757.085251.11
2020NYY133.0911311.22240.86
2021NYY613.36643056.197381.31
2022NYY434.4644936.143281.43
2023KC312.4542229.153201.23
2023TEX303.7223429.050161.28
2023—613.0965658.1103361.25
2024PIT683.79551461.298391.35
2025BOS671.17533261.185150.70
2026BOS531.92343551.271231.12