Seranthony Domínguez

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Chicago White Sox · Pitcher

Age 316' 1" · 225 lbsThrows Right

FBaseball Overview

At 31, Seranthony Domínguez enters 2026 as a relief arm for the White Sox with mixed fantasy appeal and volatile performance trends. His early-season numbers show he's grabbed a prominent save role with 12 saves through limited appearances, though his ERA has climbed to 4.30 and his WHIP has ticked up to 1.33—concerning regression from his 2025 form when he posted a 3.16 ERA over more innings. Strikeout production remains serviceable with 35 K in 29.1 IP, but the elevated ERA and WHIP suggest he's facing command issues that fantasy managers should monitor closely. The save opportunities provide ceiling appeal in the category, yet health durability and recent performance trends make him a touchdown-dependent late-round closer play rather than a trustworthy cornerstone.

MLB Pitching

Year	Team	G	W	L	SV	ERA	WHIP	K	IP	BB
2018	Philadelphia Phillies	53	2	5	16	2.95	0.93	74	58.0	22
2019	Philadelphia Phillies	27	3	0	0	4.01	1.46	29	24.2	12
2021	Philadelphia Phillies	1	0	0	0	0.00	0.00	1	1.0	0
2022	Philadelphia Phillies	54	6	5	9	3.00	1.14	61	51.0	22
2023	Philadelphia Phillies	57	5	5	2	3.78	1.40	48	50.0	22
2024	2 teams▼	63	3	4	11	4.45	1.24	68	58.2	21
2025	2 teams▼	67	4	4	2	3.16	1.28	79	62.2	36
2026	Chicago White Sox	33	3	3	12	4.85	1.38	36	29.2	18
Career	Totals	355	26	26	52	3.62	1.23	396	335.2	153

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

Minor League Pitching

Year	Team	G	GS	W	L	ERA	WHIP	K	IP	BB
2012	DSL Phillies	15	11	4	4	3.48	1.32	40	67.1	26
2013	DSL Phillies	14	14	4	6	2.96	1.18	58	76.0	30
2014	GCL Phillies	14	0	2	2	3.12	1.54	24	26.0	14
2015	GCL Phillies	2	1	1	1	2.35	1.70	9	7.2	7
2016	2 teams▼	13	13	6	3	2.34	1.01	65	65.1	24
2017	2 teams▼	17	15	4	4	3.72	1.33	82	67.2	34
2018	2 teams▼	11	0	2	2	1.62	0.66	21	16.2	3
2021	3 teams▼	19	3	1	1	7.97	1.67	23	20.1	12
2022	Lehigh Valley IronPigs	1	0	0	0	0.00	2.00	1	1.0	2
2023	Lehigh Valley IronPigs	2	0	0	0	0.00	1.00	5	2.0	1
Career	Totals	108	57	24	23	3.29	1.25	328	349.3	153

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

Game Log2026 season

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Pitching Analytics2026 season · via Baseball Savant

Click for year to year changes

FB Velo97.4 mph

Avg Spin2164 rpm

Whiff %29.1%

K %27.5%

BB %13.7%

Hard Hit %39.2%

Barrel %8.1%

xERA5.20

xBA Against0.247

xSLG Against0.423

BA Against0.209

SLG Against0.382

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.

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Year

Team

ERA

WHIP

2018

Philadelphia Phillies

2.95

0.93

58.0

2019

Philadelphia Phillies

4.01

1.46

24.2

2021

Philadelphia Phillies

0.00

1.0

2022

Philadelphia Phillies

3.00

1.14

51.0

2023

Philadelphia Phillies

3.78

1.40

50.0

2024

2 teams▼

4.45

1.24

58.2

2025

2 teams▼

3.16

1.28

62.2

2026

Chicago White Sox

4.85

1.38

29.2

Career

Totals

355

3.62

1.23

396

335.2

153

Year

Team

ERA

WHIP

2012

DSL Phillies

3.48

1.32

67.1

2013

DSL Phillies

2.96

1.18

76.0

2014

GCL Phillies

3.12

1.54

26.0

2015

GCL Phillies

2.35

1.70

7.2

2016

2 teams▼

2.34

1.01

65.1

2017

2 teams▼

3.72

1.33

67.2

2018

2 teams▼

1.62

0.66

16.2

2021

3 teams▼

7.97

1.67

20.1

2022

Lehigh Valley IronPigs

0.00

2.00

1.0

2023

Lehigh Valley IronPigs

0.00

1.00

2.0

Career

Totals

108

3.29

1.25

328

349.3

153