2025 Stats
W-L
4-2
ERA
7.34
WHIP
1.83
K
36
SV
0
2026 Projections
Signed a one-year contract with the Mariners in March of 2026.
Sent down to Triple-A
The Mariners optioned Simpson to Triple-A Tacoma on Friday.
Analysis
Simpson was acquired by the Mariners from the Marlins in mid-February. The 28-year-old southpaw made his major-league debut for Miami in 2025 and appeared in 31 games, posting a 7.34 ERA, 1.83 WHIP and 36:22 K:BB across 30.2 innings. Simpson will open the 2026 season in Triple-A but could get called up to the majors if the Mariners need a left-hander out of the bullpen.
Simpson was acquired by the Mariners from the Marlins in mid-February. The 28-year-old southpaw made his major-league debut for Miami in 2025 and appeared in 31 games, posting a 7.34 ERA, 1.83 WHIP and 36:22 K:BB across 30.2 innings. Simpson will open the 2026 season in Triple-A but could get called up to the majors if the Mariners need a left-hander out of the bullpen.
Pitching Stats
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2025 MLB Game Log
2025
2024
2023
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
20
Last 10 Games
21
Last 5 Games
17
How many pitches does Josh Simpson generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does Josh Simpson generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
-37%
BAA vs LHP
2025
-37%
BAA vs LHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .207 | 17 | 11 | 12 | 3 |
| Since 2023vs Right | .328 | 19 | 11 | 22 | 2 |
| 2025vs Left | .207 | 17 | 11 | 12 | 3 |
| 2025vs Right | .328 | 19 | 11 | 22 | 2 |
| 2024vs Left | 0 | 0 | 0 | 0 | 0 |
| 2024vs Right | 0 | 0 | 0 | 0 | 0 |
| 2023vs Left | 0 | 0 | 0 | 0 | 0 |
| 2023vs Right | 0 | 0 | 0 | 0 | 0 |
Home/Away Pitching Splits
Since 2023
-65%
ERA on Road
2025
-65%
ERA on Road
| ERA | WHIP | IP | K/9 | BB/9 | |
|---|---|---|---|---|---|
| Since 2023Home | 10.00 | 2.28 | 18.0 | 10.0 | 7.0 |
| Since 2023Away | 3.55 | 1.18 | 12.2 | 11.4 | 5.7 |
| 2025Home | 10.00 | 2.28 | 18.0 | 10.0 | 7.0 |
| 2025Away | 3.55 | 1.18 | 12.2 | 11.4 | 5.7 |
| 2024Home | 0 | 0 | 0 | 0 | 0 |
| 2024Away | 0 | 0 | 0 | 0 | 0 |
| 2023Home | 0 | 0 | 0 | 0 | 0 |
| 2023Away | 0 | 0 | 0 | 0 | 0 |
Minor League Left/Right Pitching Splits (AAA)
Since 2023
Even Split
2025
-36%
BAA vs RHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .213 | 46 | 19 | 27 | 2 |
| Since 2023vs Right | .214 | 57 | 24 | 34 | 6 |
| 2025vs Left | .203 | 15 | 8 | 12 | 1 |
| 2025vs Right | .130 | 14 | 8 | 7 | 0 |
| 2024vs Left | .167 | 6 | 2 | 2 | 1 |
| 2024vs Right | .333 | 9 | 2 | 10 | 2 |
| 2023vs Left | .232 | 25 | 9 | 13 | 0 |
| 2023vs Right | .227 | 34 | 14 | 17 | 4 |
Stat Review
How does Josh Simpson compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
1.64K/9
10.6BB/9
6.5HR/9
1.5Fastball
94.2 mphERA
7.34WHIP
1.83BABIP
.365GB/FB
2.58Left On Base
57.1%Exit Velocity
82.4 mphBarrels/BBE
2.9%Spin Rate
2364 rpmBalls Hit 95+ MPH
25.1%Swinging Strike
10.5%Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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More Fantasy News
Shipped to Seattle
The Mariners acquired Simpson from the Marlins on Monday in exchange for cash considerations.
Analysis
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Booted from roster
Simpson was designated for assignment Thursday.
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Recalled from Triple-A
The Marlins recalled Simpson from Triple-A Jacksonville on Friday.
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Sent back to minors
The Marlins optioned Simpson to Triple-A Jacksonville on Wednesday.
Analysis
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Nabs win in relief
Simpson (2-0) picked up the win Friday over the Brewers, striking out one in a perfect sixth inning.
Analysis
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