| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 4 | 2 | 0 | 2 | 31.0 | 34 | 22 | 36 | 25 | 7.26 | 1.806 | -8.0 |
| 2025 | 4 | 2 | 0 | 2 | 30.7 | 34 | 22 | 36 | 25 | 7.34 | 1.826 | -10.0 |
| Date | News |
| 2/16/26 | Mariners add relief help, acquire Josh Simpson from Marlins. No content provided Source: https://www.mlb.com/news/josh-simpson-acquired-by-... |
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