Gabe Speier

Active

Seattle Mariners · Pitcher

Age 315' 11" · 200 lbsThrows Left

FBaseball Overview

At 31 years old, Speier operates primarily as a relief pitcher for Seattle while early 2026 results suggest he's carving out occasional save opportunities alongside his setup role. His strikeout stuff remains reliable—he's averaging nearly 8 K/9 through his limited early innings this season—while maintaining the strong ERA and WHIP metrics that defined his 2025 campaign (2.61 ERA, 0.87 WHIP over 62 innings). For fantasy purposes, Speier offers modest upside in ERA and strikeouts as a depth relief option, though his lack of consistent save opportunities limits ceiling in standard formats where closers are heavily valued. The key risk is usage volatility typical of non-closer relievers; he's best suited for league formats that reward holds or innings pitched rather than traditional 9-category rotisserie scoring.

MLB Pitching

Year	Team	G	GS	W	L	SV	ERA	WHIP	K	IP	BB
2019	Kansas City Royals	9	0	0	0	0	7.36	1.50	10	7.1	6
2020	Kansas City Royals	8	0	0	1	0	7.94	2.29	6	5.2	4
2021	Kansas City Royals	7	0	0	0	0	1.17	1.30	5	7.2	0
2022	Kansas City Royals	17	1	0	1	0	2.33	1.09	14	19.1	5
2023	Seattle Mariners	69	0	2	2	1	3.79	1.06	64	54.2	11
2024	Seattle Mariners	29	0	0	2	0	5.70	1.39	33	23.2	14
2025	Seattle Mariners	76	0	4	3	0	2.61	0.87	82	62.0	11
2026	Seattle Mariners	27	0	1	2	1	1.64	1.09	19	22.0	6
Career	Totals	242	1	7	11	2	3.43	1.11	233	202.1	57

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
2013	GCL Red Sox	3	2	0	0	0	2.25	1.50	6	4.0	1
2014	GCL Red Sox	9	6	3	0	0	1.55	0.79	26	29.0	1
2015	West Michigan Whitecaps	33	0	4	2	0	2.86	1.18	36	44.0	12
2016	4 teams▼	39	0	4	2	3	2.62	1.20	49	58.1	20
2017	Jackson Generals	36	4	2	6	2	4.30	1.62	50	69.0	31
2018	2 teams▼	46	0	1	0	1	3.39	1.54	48	61.0	20
2019	2 teams▼	47	0	1	5	6	4.48	1.40	73	62.1	26
2021	Omaha Storm Chasers	45	0	3	0	5	2.98	1.19	57	45.1	9
2022	2 teams▼	31	0	1	3	0	13.99	2.31	36	27.2	12
2024	2 teams▼	16	1	0	0	1	1.69	0.94	10	16	5
2026	2 teams▼	2	1	0	1	0	13.50	1.50	4	2	0
Career	Totals	307	14	19	19	18	4.04	1.39	395	418.2	137

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 Velo95.1 mph

Avg Spin2220 rpm

Whiff %23.5%

K %20.9%

BB %6.6%

Hard Hit %36.5%

Barrel %11.1%

xERA3.46

xBA Against0.215

xSLG Against0.383

BA Against0.228

SLG Against0.342

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

2019

Kansas City Royals

7.36

1.50

7.1

2020

Kansas City Royals

7.94

2.29

5.2

2021

Kansas City Royals

1.17

1.30

7.2

2022

Kansas City Royals

2.33

1.09

19.1

2023

Seattle Mariners

3.79

1.06

54.2

2024

Seattle Mariners

5.70

1.39

23.2

2025

Seattle Mariners

2.61

0.87

62.0

2026

Seattle Mariners

1.64

1.09

22.0

Career

Totals

242

3.43

1.11

233

202.1

Year

Team

ERA

WHIP

2013

GCL Red Sox

2.25

1.50

4.0

2014

GCL Red Sox

1.55

0.79

29.0

2015

West Michigan Whitecaps

2.86

1.18

44.0

2016

4 teams▼

2.62

1.20

58.1

2017

Jackson Generals

4.30

1.62

69.0

2018

2 teams▼

3.39

1.54

61.0

2019

2 teams▼

4.48

1.40

62.1

2021

Omaha Storm Chasers

2.98

1.19

45.1

2022

2 teams▼

13.99

2.31

27.2

2024

2 teams▼

1.69

0.94

2026

2 teams▼

13.50

1.50

Career

Totals

307

4.04

1.39

395

418.2

137