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2026 Stats
W
0
L
2
ERA
4.15
WHIP
1.27
IP
8.2
SO
12
SV
0
HLD
5
G
10
GS
0
Career Stats
W
8
L
8
ERA
3.49
WHIP
1.06
IP
98.0
SO
95
SV
5
HLD
25
G
90
GS
0
Year-by-Year Pitching
| Year | Team | G | GS | IP | W | L | SV | SO | ERA | WHIP | Awards |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | BOS | 44 | — | 55.1 | 6 | 2 | 2 | 58 | 2.93 | 1.01 | |
| 2025 | BOS | 36 | — | 34.0 | 2 | 4 | 3 | 25 | 4.24 | 1.09 | |
| 2026 | BOS | 10 | — | 8.2 | — | 2 | — | 12 | 4.15 | 1.27 |
Spring Training
Pitching
| Year | Team | G | GS | IP | W | L | SV | SO | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | BOS | 6 | — | 6.1 | — | — | — | 6 | 0.00 | 0.47 |
| 2025 | BOS | 5 | — | 4.2 | — | — | — | 4 | 3.86 | 1.29 |
| 2026 | BOS | 7 | — | 6.2 | — | — | — | 7 | 5.40 | 1.35 |
Postseason
Pitching
| Year | Team | G | GS | IP | W | L | SV | SO | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | 2 | — | 2.0 | — | — | — | 1 | 4.50 | 1.00 |
Game Logs
Season selector loads one year at a time.
Pitching
| Date | Opponent | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|
| 2026-05-22 | vs MIN | 0.2 | 4 | 4 | 4 | 1 | 1 | 2 |
| 2026-05-19 | @ KC | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 |
| 2026-05-18 | @ KC | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 |
| 2026-05-14 | vs PHI | 0.2 | 1 | 0 | 0 | 0 | 1 | 0 |
| 2026-05-13 | vs PHI | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 2026-05-10 | vs TB | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 2026-04-04 | vs SD | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 |
| 2026-04-03 | vs SD | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 2026-03-28 | @ CIN | 0.1 | 1 | 1 | 0 | 1 | 1 | 0 |
| 2026-03-26 | @ CIN | 1.0 | 0 | 0 | 0 | 1 | 2 | 0 |
Transactions
Entire history • newest first.
2026-05-09
Boston Red Sox activated RHP Justin Slaten from the 15-day injured list.
2026-05-06
Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
2026-05-06
Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
2026-05-03
Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Portland Sea Dogs.
2025-08-28
Boston Red Sox activated RHP Justin Slaten from the 60-day injured list.
2025-08-19
Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
2025-08-19
Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Worcester Red Sox.
2025-06-28
Boston Red Sox transferred RHP Justin Slaten from the 15-day injured list to the 60-day injured list.
2025-06-01
Boston Red Sox placed RHP Justin Slaten on the 15-day injured list retroactive to May 29, 2025. Right shoulder inflammation.
2025-04-16
RHP Justin Slaten changed number to 63.
2025-04-15
RHP Justin Slaten changed number to 42.
2024-08-26
Boston Red Sox activated RHP Justin Slaten from the 15-day injured list.
2024-08-23
Boston Red Sox sent RHP Justin Slaten on a rehab assignment to Portland Sea Dogs.
2024-07-12
Boston Red Sox placed RHP Justin Slaten on the 15-day injured list retroactive to July 9, 2024. Right elbow inflammation.
2023-12-06
New York Mets drafted RHP Justin Slaten.
2023-12-06
New York Mets traded RHP Justin Slaten to Boston Red Sox for LHP Ryan Ammons.
2019-06-12
Texas Rangers signed RHP Justin Slaten.
Scouting Report
Statcast-style percentiles • Basenerd theme
Season 2026
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Statcast Game Log
Per-game pitch metrics from Statcast
| Date | Pitches | Velo | BNStuff+ | BNCtrl+ | Whiff% | Zone% | Chase% | K% | BB% | xwOBA |
|---|---|---|---|---|---|---|---|---|---|---|
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