| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 1 | 2 | 20 | 5 | 58.0 | 30 | 24 | 93 | 17 | 2.69 | 0.919 | 45.0 |
| 2026 | 1 | 0 | 6 | 0 | 9.3 | 1 | 1 | 23 | 0 | 0.00 | 0.214 | 122.6 |
| 2025 | 1 | 2 | 22 | 10 | 61.7 | 28 | 28 | 104 | 18 | 2.63 | 0.908 | 59.9 |
| 2024 | 2 | 2 | 28 | 0 | 65.0 | 35 | 21 | 104 | 18 | 2.49 | 0.862 | 70.7 |
| Date | News |
| 4/18/26 | Mason Miller tops all pitchers? CJ Abrams goes 30-100-30? Don't be surprised. Looking into the crystal ball to tell fantasy managers what might come to pass in the not-too-distant future. Source: https://www.espn.com/fantasy/baseball/story/_/id/4... |
| 4/16/26 | Mason Miller tops all pitchers? CJ Abrams goes 30-100-30? Don't be surprised. Eric Karabell looks into the crystal ball to tell fantasy baseball managers what might come to pass in the not-too-distant future. Source: https://www.espn.com/fantasy/baseball/story/_/id/4... |
| 4/08/26 | [SB Nation: Athletics Nation] - Elephant Rumblings: A’s Bullpen Exposed in the Big Apple. Entering the season, the concern among Athletics’ fans and baseball experts was that the team had not done enough to improve their bullpen sans closer Mason Miller. Through ten games, that concern is fully warranted. It is likely that good players with a history of success did not want to sign with the A’s to […] Source: https://sportspyder.com/mlb/oakland-athletics/arti... |
| 4/06/26 | These Mason Miller numbers don't look real -- but they are. No content provided Source: https://www.mlb.com/news/mason-miller-scoreless-st... |
| 3/31/26 | [Fan Nation] - This Mason Miller Quote Flew Under the Radar, But Hits A's Hard. San Diego closer Mason Miller is plenty happy with his new entrance music, and the crowd that comes with it . Source: https://sportspyder.com/mlb/oakland-athletics/arti... |
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