| Window | G | IP | ERA | WHIP | K | BB |
|---|---|---|---|---|---|---|
| Last 30 days | 7 | 8 | 10.38 | 2.08 | 6 | 7 |
| 2026 season | 13 | 21 | 4.64 | 1.36 | 21 | 12 |
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 |
|---|---|---|---|---|---|---|
| In relief | 21 | 4.64 | 1.36 | 21 | 12 | 5 |
| Home | 12 | 4.97 | 1.26 | 10 | 5 | 5 |
| Away | 8 | 4.15 | 1.50 | 11 | 7 | 0 |
Last appearance · Jul 10 · 24 pitches
| Pitch | Count | Usage | Avg Velo | Max |
|---|---|---|---|---|
Four-Seam FastballFF | 11 | 46% | 95.2 mph | 96.3 |
SliderSL | 9 | 38% | 86.0 mph | 87.5 |
CurveballCU | 3 | 13% | 78.3 mph | 79.9 |
SweeperST | 1 | 4% | 82.4 mph | 82.4 |
| Date | Opp | IP | H | R | ER | BB | K | HR | ERA |
|---|---|---|---|---|---|---|---|---|---|
| 2026-07-10 | @ Chicago White Sox | 1 | 3 | 3 | 3 | 1 | 0 | 0 | 4.64 |
| 2026-07-08 | @ Detroit Tigers | 1 | 0 |
| 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 |
| 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 |
| 2026-06-27 | @ Los Angeles Angels | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1.17 |
| 2026-06-25 | @ San Francisco Giants | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1.23 |
| 2026-06-23 | @ San Francisco Giants | 1 | 1 | 1 | 1 | 2 | 3 | 0 | 1.32 |
| 2026-06-18 | vs Los Angeles Angels | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0.71 |
| 2026-06-15 | vs Pittsburgh Pirates | 2 | 2 | 1 | 1 | 0 | 1 | 1 | 0.77 |
| 2026-06-12 | vs Colorado Rockies | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0.00 |
| 2026 |
| Athletics |
| 1 |
| 0 |
| 13 |
| 21.1 |
| 4.64 |
| 1.36 |
| 21 |
| 12 |
| 5 |
| 8.86 |
| 5.06 |
| Career | — | 2 | 1 | 18 | 43.2 | 5.77 | 1.51 | 39 | 23 | 8 | 8.04 | 4.74 |
