| Window | G | IP | ERA | WHIP | K | BB |
|---|---|---|---|---|---|---|
| Last 7 days | 1 | 3 | 8.10 | 3.30 | 4 | 4 |
| Last 30 days | 1 | 3 | 8.10 | 3.30 | 4 | 4 |
| 2026 season | 19 | 44 | 7.16 | 1.75 | 42 | 28 |
How Mason ranks vs qualified MLB pitchers in 2026. Higher percentile = better. The chip on each bar is the percentile (e.g. 11%ile means better than 11% of qualified players).
| Split | IP | ERA | WHIP | K | BB | HR |
|---|---|---|---|---|---|---|
| As starter | 19 | 10.24 | 2.22 | 19 | 15 | 7 |
| In relief | 24 | 4.74 | 1.38 | 23 | 13 | 5 |
| Home | 21 | 6.23 | 1.34 | 16 | 9 | 8 |
| Away | 22 | 8.06 |
Last appearance · Sep 18 · 79 pitches
| Pitch | Count | Usage | Avg Velo | Max |
|---|---|---|---|---|
Four-Seam FastballFF | 41 | 52% | 95.2 mph | 96.6 |
ChangeupCH | 15 | 19% | 85.1 mph | 86.5 |
CurveballCU | 9 | 11% | 78.5 mph | 80.2 |
SliderSL | 7 | 9% | 88.0 mph | 89.1 |
SweeperST | 7 | 9% | 84.1 mph | 87.0 |
| Date | Opp | IP | H | R | ER | BB | K | HR | ERA |
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-18 | @ Cleveland Guardians | 3 | 7 | 3 | 3 | 4 | 4 | 0 | 7.16 |
| 2026-08-17 | @ Kansas City Royals | 2 | 7 |
| Year | Team | W | L | G | IP | ERA | WHIP | K | BB | HR | K/9 | BB/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | Athletics | 1 | 1 | 5 | 22.1 | 6.85 | 1.66 | 18 | 11 | 3 | 7.25 | 4.43 |
| 2.15 |
| 26 |
| 19 |
| 4 |
| 6 |
| 6 |
| 4 |
| 2 |
| 1 |
| 7.08 |
| 2026-08-11 | vs Tampa Bay Rays | 4 | 5 | 6 | 5 | 3 | 0 | 3 | 6.16 |
| 2026-08-06 | @ Cincinnati Reds | 4 | 5 | 5 | 5 | 3 | 7 | 3 | 5.56 |
| 2026-07-30 | vs Boston Red Sox | 5 | 4 | 3 | 3 | 1 | 6 | 0 | 4.85 |
| 2026-07-25 | @ Minnesota Twins | 3 | 4 | 2 | 2 | 1 | 2 | 0 | 4.74 |
| 2026-07-10 | @ Chicago White Sox | 1 | 3 | 3 | 3 | 1 | 0 | 0 | 4.64 |
| 2026-07-08 | @ Detroit Tigers | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 3.54 |
| 2026-07-05 | vs Miami Marlins | 2 | 3 | 2 | 2 | 0 | 0 | 2 | 3.72 |
| 2026-07-03 | vs Miami Marlins | 2 | 3 | 4 | 4 | 2 | 2 | 2 | 3.12 |
| 2026 |
| Athletics |
| 1 |
| 4 |
| 19 |
| 44.0 |
| 7.16 |
| 1.75 |
| 42 |
| 28 |
| 12 |
| 8.59 |
| 5.73 |
| Career | — | 2 | 5 | 24 | 66.1 | 7.06 | 1.72 | 60 | 39 | 15 | 8.14 | 5.29 |
