2026 Stats
W-L
0-0
ERA
0.00
WHIP
0.00
K
0
SV
0
Rest-of-Season Projections
Invited to spring training
Diaz was added to the Mariners' spring training roster as a non-roster invitee.
Analysis
Diaz was designated for assignment and outrighted to Triple-A in January, when the Mariners acquired Cooper Criswell. The left-hander will likely be a depth option for Seattle's bullpen this season, although he isn't guaranteed a spot on the Opening Day roster. He made just one big-league appearance in 2025.
Diaz was designated for assignment and outrighted to Triple-A in January, when the Mariners acquired Cooper Criswell. The left-hander will likely be a depth option for Seattle's bullpen this season, although he isn't guaranteed a spot on the Opening Day roster. He made just one big-league appearance in 2025.
Pitching Stats
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2025 MLB Game Log
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Minor League Game Log
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Left/Right Pitching Splits
Since 2024
-11%
BAA vs LHP
2026
No Stats
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2024vs Left | .286 | 5 | 0 | 6 | 0 |
| Since 2024vs Right | .321 | 4 | 3 | 9 | 2 |
| 2026vs Left | 0 | 0 | 0 | 0 | 0 |
| 2026vs Right | 0 | 0 | 0 | 0 | 0 |
| 2025vs Left | .500 | 0 | 0 | 1 | 0 |
| 2025vs Right | .000 | 1 | 0 | 0 | 0 |
| 2024vs Left | .263 | 5 | 0 | 5 | 0 |
| 2024vs Right | .360 | 3 | 3 | 9 | 2 |
Home/Away Pitching Splits
Since 2024
-100%
ERA on Road
2026
No Stats
| ERA | WHIP | IP | K/9 | BB/9 | |
|---|---|---|---|---|---|
| Since 2024Home | 4.50 | 1.70 | 10.0 | 6.3 | 2.7 |
| Since 2024Away | 0.00 | 1.00 | 1.0 | 18.0 | 0.0 |
| 2026Home | 0 | 0 | 0 | 0 | 0 |
| 2026Away | 0 | 0 | 0 | 0 | 0 |
| 2025Home | 0.00 | 0.75 | 1.1 | 6.8 | 0.0 |
| 2025Away | 0 | 0 | 0 | 0 | 0 |
| 2024Home | 5.19 | 1.85 | 8.2 | 6.2 | 3.1 |
| 2024Away | 0.00 | 1.00 | 1.0 | 18.0 | 0.0 |
Minor League Left/Right Pitching Splits (AAA)
Since 2024
-22%
BAA vs LHP
2026
-100%
BAA vs LHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2024vs Left | .232 | 67 | 21 | 61 | 6 |
| Since 2024vs Right | .298 | 171 | 56 | 225 | 21 |
| 2026vs Left | .000 | 0 | 0 | 0 | 0 |
| 2026vs Right | .500 | 2 | 1 | 6 | 0 |
| 2025vs Left | .235 | 33 | 7 | 32 | 4 |
| 2025vs Right | .306 | 83 | 17 | 127 | 14 |
| 2024vs Left | .230 | 34 | 14 | 29 | 2 |
| 2024vs Right | .280 | 86 | 38 | 92 | 7 |
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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2023 Fantasy Outlook
Diaz spent most of 2022 in Triple-A, where he posted a 4.98 ERA, 1.36 WHIP and 46:20 K:BB over 47 innings. For a second straight season, he got a brief taste of the big-leagues, hurling 15.1 innings over four outings (three starts) and recording a 2.93 ERA. While that number looks good on the surface, Diaz gave up four walks in each of his first two appearances and logged a troubling 11:10 K:BB overall. Diaz doesn't throw hard -- he averaged 91.4 mph on his fastball last year during his time in the majors -- but he throws five different pitches, using all but his curveball at least 16% of the time last season. The slider was clearly his best pitch, as he threw it 44 times to big-league hitters during the campaign without giving up a hit while posting a 40.6% whiff rate on the offering. The southpaw ended the campaign on the 60-day IL with an undisclosed injury, and Los Angeles designated him for assignment in November before re-signing him to a minor-league contract the following month. He'll likely open the 2023 campaign back at Triple-A but should see some time in the majors at some point during the season.
More Fantasy News
Outrighted to Triple-A
The Mariners outrighted Diaz to Triple-A Tacoma on Wednesday.
Analysis
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Booted from 40-man roster
The Mariners designated Diaz for assignment Friday, Adam Jude of The Seattle Times reports.
Analysis
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Optioned to Tacoma
The Mariners optioned Diaz to Triple-A Tacoma on Tuesday.
Analysis
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Rejoins big club
The Mariners recalled Diaz from Triple-A Tacoma on Wednesday.
Analysis
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Dispatched to Triple-A
The Mariners optioned Diaz to Triple-A Tacoma on Wednesday.
Analysis
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