Aroldis Chapman

Active

Boston Red Sox · Pitcher

Age 386' 4" · 235 lbsThrows Left

FBaseball Overview

The hard-throwing lefty locks in as Boston's closer, making him a reliable source of saves in 2026 fantasy leagues. Chapman's recent track record shows elite strikeout rates and a sub-2.20 ERA, though his WHIP sits slightly elevated at 1.26, suggesting some control inconsistencies that could impact his ERA floor. The 38-year-old remains a workhorse in high-leverage situations, but managers should monitor for any decline in velocity or durability as age becomes a factor—expect steady saves upside if he stays healthy, but temper expectations on win-loss records given the Red Sox's competitive position. He's best viewed as a back-end closer pick who can anchor your strikeout and saves categories without much contribution to wins.

News Updates

Aroldis Chapman Records 18th Save
Boston Red Sox closer Aroldis Chapman secured his 18th save of the season during Sunday's 7-5 victory over the Angels. Chapman threw one inning of work, allowing a solo home run while striking out two batters. The save continues Chapman's reliable performance in the closer role for Boston.
Jul 6, 2026
Chapman sets all-time strikeout record for relievers
Aroldis Chapman made history by recording his 1,364th career strikeout as a reliever, breaking Hall of Famer Hoyt Wilhelm's previous record. The Boston Red Sox closer fanned Angels' Denzer Guzman in the ninth inning Friday night to etch his name in MLB history.
Jul 4, 2026

MLB Pitching

Year	Team	G	W	L	SV	ERA	WHIP	K	IP	BB
2010	Cincinnati Reds	15	2	2	0	2.03	1.05	19	13.1	5
2011	Cincinnati Reds	54	4	1	1	3.60	1.30	71	50.0	41
2012	Cincinnati Reds	68	5	5	38	1.51	0.81	122	71.2	23
2013	Cincinnati Reds	68	4	5	38	2.54	1.04	112	63.2	29
2014	Cincinnati Reds	54	0	3	36	2.00	0.83	106	54.0	24
2015	Cincinnati Reds	65	4	4	33	1.63	1.15	116	66.1	33
2016	2 teams▼	59	4	1	36	1.55	0.86	90	58.0	18
2017	New York Yankees	52	4	3	22	3.22	1.13	69	50.1	20
2018	New York Yankees	55	3	0	32	2.45	1.05	93	51.1	30
2019	New York Yankees	60	3	2	37	2.21	1.11	85	57.0	25
2020	New York Yankees	13	1	1	3	3.09	0.86	22	11.2	4
2021	New York Yankees	61	6	4	30	3.36	1.31	97	56.1	38
2022	New York Yankees	43	4	4	9	4.46	1.43	43	36.1	28
2023	2 teams▼	61	6	5	6	3.09	1.25	103	58.1	36
2024	Pittsburgh Pirates	68	5	5	14	3.79	1.35	98	61.2	39
2025	Boston Red Sox	67	5	3	32	1.17	0.70	85	61.1	15
2026	Boston Red Sox	28	0	3	18	2.36	1.28	35	26.2	12
Career	Totals	891	60	51	385	2.52	1.08	1366	848	420

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Minor League Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2010	Louisville Bats	39	13	9	6	8	3.57	1.35	125	95.2	52
2011	2 teams▼	9	3	1	2	0	8.31	1.69	20	13	8
2014	2 teams▼	4	3	0	1	0	24.00	3.33	5	3	3
2017	Trenton Thunder	1	1	0	0	0	13.50	3.00	2	0.2	2
2022	2 teams▼	5	0	0	0	0	0.00	0.80	9	5	2
Career	Totals	58	20	10	9	8	4.53	1.42	161	117.1	67

Source: MLB Stats API · Multi-team seasons show combined totals — click to expand

Game Log2026 season

Loading game log…

Pitching Analytics2026 season · via Baseball Savant

Click for year to year changes

FB Velo97.5 mph

Avg Spin2320 rpm

Whiff %30.0%

K %30.7%

BB %10.5%

Hard Hit %40.9%

Barrel %9.1%

xERA2.92

xBA Against0.192

xSLG Against0.301

BA Against0.218

SLG Against0.317

What These Stats Mean

FB Velo — Average fastball velocity. Harder throwers generate more swings and misses, setting up every other pitch in their arsenal. Velocity is the foundation of strikeout upside.

Avg Spin — Average spin rate across all pitches. Higher spin creates more movement and makes pitches harder to square up — elite spinners run better strikeout and batting average against numbers.

Whiff % — Swings-and-misses per swing. The most direct measure of a pitcher's ability to miss bats and the best leading indicator of strikeout rate.

K % — Strikeout rate per batter faced. The core fantasy pitching stat — high K% means reliable strikeout totals that hold up even in shorter starts.

BB % — Walk rate per batter faced. The primary control metric. High BB% tanks ERA and WHIP and keeps baserunners on constantly. Elite starters typically run below 7%.

Hard Hit % — Percentage of batted balls hit 95 mph or harder against. Low hard-hit% means weak contact, protecting both ERA and the defense behind the pitcher.

Barrel % — Percentage of batted balls barreled against. The most direct home run predictor — low barrel% pitchers rarely give up long balls.

xERA — Expected ERA based on contact quality allowed, removing the effect of sequencing, luck, and defense. Better predictor of future ERA than ERA itself.

xBA Against — Expected batting average opponents should hit based on contact quality. A gap between xBA and actual BA indicates unsustainable luck in either direction.

xSLG Against — Expected slugging allowed based on contact quality. High xSLG against predicts future extra-base damage; low xSLG means the pitcher is genuinely suppressing power.

BA Against — Actual batting average opponents are hitting — a key WHIP component. Check xBA to see if the number is sustainable.

SLG Against — Actual slugging allowed. Captures hits, doubles, triples, and home runs — lower means the pitcher is limiting the power damage he gives up.

GB% — Ground ball rate. High GB% pitchers generate double plays, limit home runs, and keep the ball in the park — great for protecting ERA and WHIP ratios.

FB% — Fly ball rate. High FB% pitchers give up more air contact — dangerous when combined with high exit velocity, less so when contact is soft.

Loading player data...

Year

Team

ERA

WHIP

2010

Cincinnati Reds

2.03

1.05

13.1

2011

Cincinnati Reds

3.60

1.30

50.0

2012

Cincinnati Reds

1.51

0.81

122

71.2

2013

Cincinnati Reds

2.54

1.04

112

63.2

2014

Cincinnati Reds

2.00

0.83

106

54.0

2015

Cincinnati Reds

1.63

1.15

116

66.1

2016

2 teams▼

1.55

0.86

58.0

2017

New York Yankees

3.22

1.13

50.1

2018

New York Yankees

2.45

1.05

51.1

2019

New York Yankees

2.21

1.11

57.0

2020

New York Yankees

3.09

0.86

11.2

2021

New York Yankees

3.36

1.31

56.1

2022

New York Yankees

4.46

1.43

36.1

2023

2 teams▼

3.09

1.25

103

58.1

2024

Pittsburgh Pirates

3.79

1.35

61.2

2025

Boston Red Sox

1.17

0.70

61.1

2026

Boston Red Sox

2.36

1.28

26.2

Career

Totals

891

385

2.52

1.08

1366

848

420

Year

Team

ERA

WHIP

2010

Louisville Bats

3.57

1.35

125

95.2

2011

2 teams▼

8.31

1.69

2014

2 teams▼

24.00

3.33

2017

Trenton Thunder

13.50

3.00

0.2

2022

2 teams▼

0.00

0.80

Career

Totals

4.53

1.42

161

117.1