| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 1 | 2 | 12 | 2 | 33.0 | 28 | 10 | 38 | 15 | 4.05 | 1.174 | 17.2 |
| 2026 | 0 | 0 | 2 | 0 | 2.3 | 0 | 0 | 4 | 0 | 0.00 | 0.000 | 64.5 |
| 2025 | 1 | 1 | 2 | 4 | 19.7 | 18 | 6 | 20 | 10 | 4.58 | 1.220 | 5.0 |
| 2024 | 1 | 2 | 16 | 1 | 39.7 | 35 | 10 | 43 | 19 | 4.31 | 1.134 | 24.3 |
| Date | News |
| 2/15/26 | D-backs bring back righty Sewald on 1-year deal. The Diamondbacks and reliever Paul Sewald have agreed to terms on a one-year, $1.5 million deal. Source: https://www.espn.com/mlb/story/_/id/47928167/diamo... |
| 2/15/26 | D-backs bring back righty Sewald on 1-year deal. The Diamondbacks and reliever Paul Sewald have agreed to terms on a one-year, $1.5 million deal. Source: https://www.espn.com/mlb/story/_/id/47928167/diamo... |
| 2/14/26 | D-backs bring back righty Sewald on 1-year deal. The Diamondbacks and reliever Paul Sewald have agreed to terms on a one-year deal, the team announced Saturday. Source: https://www.espn.com/mlb/story/_/id/47928167/diamo... |
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