Pitcher · 2026
Mason Miller
- Age
- 28
- B/T
- R/R
- Height
- 6' 5"
- Weight
- 200 lb
- Number
- #22
- Born
- August 24, 1998 in Pittsburgh, PA, USA
- MLB debut
- April 19, 2023
- Drafted
- 2021, round 3
- College
- Gardner-Webb
- Salary, 2026
- $4M
- dbWAR
- 5.7 3 season(s)
- IP
- 49.1
- ERA
- 0.91
- FIP
- 0.49
- K/9
- 16.6
- FIP−
- 12 100 = avg
Mason Miller is a relief pitcher for the San Diego Padres. In 2026 he struck out 91 batters over 49.1 innings across 47 appearances, going 4-1. His ERA of 0.91 was 78.2% lower than the league average of 4.18 — the best on his team, and the second best among MLB pitchers with 20+ innings. Stripping out defence, his 0.49 FIP suggests he pitched better than his ERA shows. He missed bats on 47.1% of swings (22.7% of every pitch he threw), walked 8.5% of the batters he faced and struck out 48.4%. His 2.3 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2026.
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 97 | 85 | 15 | 0 | 11 | 43 | .176 | .278 | .188 | .231 | 44.3% |
| vs RHB | 91 | 84 | 9 | 0 | 5 | 48 | .107 | .165 | .119 | .134 | 52.7% |
Pitch sequencing
What Mason Miller throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Mason Miller throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2026.
| Slider | 415 | 87.9 | 2,413 | 60.0% | 54.9% | |
| Four-Seam Fastball | 357 | 101.5 | 2,532 | 53.8% | 40.3% | |
| Changeup | 19 | 96.5 | 2,175 | 26.3% | 16.7% |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 47 | 0 | 49.1 | 4 | 1 | 29 | 24 | 5 | 91 | 16 | 0.91 | 0.49 | 0.81 | 16.6 | 2.9 | 22 | 12 | 2.3 | |
| 2025 | 60 | 0 | 61.2 | 1 | 2 | 22 | 28 | 18 | 104 | 28 | 2.63 | 2.23 | 0.91 | 15.2 | 4.1 | 63 | 54 | 1.7 | |
| 2024 | 55 | 0 | 65.0 | 2 | 2 | 28 | 36 | 18 | 104 | 21 | 2.49 | 2.18 | 0.88 | 14.4 | 2.9 | 61 | 53 | 1.7 |
Head to head
Put Mason Miller beside up to three others.
Similar players
Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.
wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.