| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 6 | 4 | 31 | 0 | 59.0 | 34 | 21 | 87 | 17 | 2.63 | 0.940 | 61.2 |
| 2025 | 6 | 2 | 28 | 0 | 52.7 | 29 | 16 | 76 | 12 | 2.05 | 0.854 | 73.4 |
| 2024 | 8 | 8 | 34 | 0 | 71.0 | 43 | 25 | 105 | 30 | 3.80 | 0.958 | 70.7 |
| 2023 | 2 | 3 | 33 | 0 | 56.3 | 32 | 30 | 85 | 8 | 1.28 | 1.101 | 77.6 |
| Date | News |
| 2/12/26 | Astros' Hader behind schedule after biceps issue. Astros All-Star reliever Josh Hader was able to resume throwing Wednesday but told reporters he isn't sure if he'll be ready for Opening Day after dealing with biceps tendinitis. Source: https://www.espn.com/mlb/story/_/id/47903249/astro... |
| 2/12/26 | Astros' Hader behind schedule after biceps issue. Astros All-Star reliever Josh Hader was able to resume throwing Wednesday but told reporters he isn't sure if he'll be ready for Opening Day after dealing with biceps tendinitis. Source: https://www.espn.com/mlb/story/_/id/47903249/astro... |
| 2/11/26 | Astros' Hader behind schedule after biceps issue. Astros All-Star reliever Josh Hader was able to resume throwing Wednesday but told reporters he isn't sure if he'll be ready for Opening Day after dealing with biceps tendinitis. Source: https://www.espn.com/mlb/story/_/id/47903249/astro... |
| 2/09/26 | Astros' Hader working back from shoulder injury. The Astros hope to learn more later this week about the health of All-Star closer Josh Hader, who is continuing to recover from a shoulder injury suffered in August. Source: https://www.espn.com/mlb/story/_/id/47880625/astro... |
| 9/04/25 | Astros' Josh Hader receives positive injury update from Joe Espada. The Houston Astros were given a positive injury update on closing pitcher Josh Hader after he received follow-up imaging on his shoulder. Source: https://sports.yahoo.com/article/astros-josh-hader... |
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