Josh Simpson

Active

Seattle Mariners · RP

Age 296' 2" · 190 lbsThrows Left

#489 Preseason

FBaseball Overview

Coming off a rough 2025 debut season with a 7.34 ERA across 30.2 innings, Simpson enters 2026 as a high-risk pitcher competing for a rotation spot with the Mariners. His strikeout rate (36 K in limited action) shows some promise in the k/9 department, but his elevated ERA and WHIP indicate serious control and command issues that need immediate correction. Fantasy managers should view him as a deep-league flier or streaming option only until he demonstrates significant improvements in ERA and WHIP, with the upside of a serviceable strikeout contributor if Seattle gives him consistent starts. The early 2026 sample is too small to draw meaningful conclusions, so monitoring his spring performance and eventual role assignment will be critical before committing roster space.

MLB Pitching

Year	Team	G	W	L	ERA	WHIP	K	IP	BB
2025	Miami Marlins	31	4	2	7.34	1.83	36	30.2	22
2026	Seattle Mariners	8	0	0	9.82	2.05	10	7.1	4
Career	Totals	39	4	2	7.82	1.87	46	38	26

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
2019	2 teams▼	16	0	1	0	2	2.25	1.08	26	24	6
2021	2 teams▼	19	5	0	2	0	5.91	1.29	62	45.2	19
2022	2 teams▼	50	0	7	2	2	3.97	1.10	112	68	34
2023	2 teams▼	28	0	2	1	0	4.42	1.55	66	38.2	27
2024	3 teams▼	14	0	0	2	0	6.19	1.69	23	16	10
2025	Jacksonville Jumbo Shrimp	29	2	3	1	3	3.41	1.02	29	34.1	16
2026	Tacoma Rainiers	33	0	0	1	2	3.28	1.32	45	35.2	16
Career	Totals	189	7	13	9	9	4.19	1.25	363	262.1	128

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

Last Week / Last Month

Current season · MLB only

7 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
7	0	6.1	0-0	0	9.95	2.21	8	4

30 games

G	GS	IP	W-L	SV	ERA	WHIP	K	BB
8	0	7.1	0-0	0	9.82	2.05	10	4

Game Log2026 MLB

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Advanced Stats2026 season · via Baseball Savant

Click for year to year changes

FB Velo92.9 mph

Avg Spin2320 rpm

Whiff %20.3%

K %26.3%

BB %10.5%

Hard Hit %43.5%

Barrel %17.4%

xERA6.03

xBA Against0.227

xSLG Against0.532

BA Against0.333

SLG Against0.727

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

2025

Miami Marlins

7.34

1.83

30.2

2026

Seattle Mariners

9.82

2.05

7.1

Career

Totals

7.82

1.87

Year

Team

ERA

WHIP

2019

2 teams▼

2.25

1.08

2021

2 teams▼

5.91

1.29

45.2

2022

2 teams▼

3.97

1.10

112

2023

2 teams▼

4.42

1.55

38.2

2024

3 teams▼

6.19

1.69

2025

Jacksonville Jumbo Shrimp

3.41

1.02

34.1

2026

Tacoma Rainiers

3.28

1.32

35.2

Career

Totals

189

4.19

1.25

363

262.1

128

W-L

ERA

WHIP

6.1

0-0

9.95

2.21

W-L

ERA

WHIP

7.1

0-0

9.82

2.05