Mason Montgomery
Bats L Throws L6'2" 205 lbBorn 2000 Austin, USADebut 2024Team TBDraft 2018 R39 #1158 Chicago White Sox, Leander HSContract 1 y/$793,000 (26) 2026: $793,000
Projections
| Season | BF | K% | BB% | HR% | 1B% | XBH% | PITCH+ |
|---|
| 2026 | 169 | 26.9 | 9.4 | 3.13 | 21.8 | 6.40 | 100.6 |
| 2027 | | | | | | | 102.4 |
| 2028 | | | | | | | 102.4 |
Projected rates are per plate appearance or batter faced; counting stats scale with projected playing time. Statcast measurements inform these projections as inputs and are reported as measurements, not projected.
Most similar through age 25
His ten closest age-25 comparables averaged 88 PITCH+ the next season; 10 of 10 played. Averages cover only the players who got a next season, which is why the played count matters.
Pitching
| Year | Team | W | L | ERA | G | GS | SV | IP | BF | HR | BB | SO | PITCH+ |
|---|
| 2027 proj | | | | | | | | | 169 | | | | 102.4 | | |
| 2026* | | | | | | | | | 210 | | | | 120.4 | 98.9 | 119.3 |
| 2025 | TB | 1 | 3 | 5.67 | 57 | 0 | 1 | 46.0 | 209 | 6 | 27 | 63 | 88.4 | 97.1 | 85.5 |
| 2024 | TB | 0 | 0 | 1.86 | 9 | 0 | 0 | 9.7 | 37 | 0 | 5 | 17 | 113.7 | 100.9 | 114.6 |
| Career | | 1 | 3 | 5.01 | 66 | 0 | 1 | 55.7 | 246 | 6 | 32 | 80 | 92.2 | | 89.9 |
Fielding
| Year | Team | Pos | G | Inn | PO | A | E | DP | Fld% | Runs saved |
|---|
| 2025 | TB | P | 57 | 46 | 3 | 5 | 1 | 0 | 0.889 | -0.8 |
| 2024 | TB | P | 9 | 10 | 0 | 1 | 0 | 0 | 1.000 | +0.0 |
Runs saved covers the Statcast era; for catchers it includes framing.
Minor leagues
| Year | Level | Team | Side | PA / BF | Line | AVG / ERA | OPS |
|---|
| 2025 | AAA | Durham Bulls | Pit | 34 | 9.0 IP, 44% K | 2.00 | |
| 2024 | AAA | Durham Bulls | Pit | 403 | 87.2 IP, 26% K | 6.30 | |
| 2023 | AAA | Durham Bulls | Pit | 69 | 16.2 IP, 19% K | 2.78 | |
| 2023 | AA | Montgomery Biscuits | Pit | 468 | 107.2 IP, 28% K | 4.20 | |
| 2022 | AA | Montgomery Biscuits | Pit | 218 | 54.1 IP, 24% K | 2.50 | |
| 2022 | A+ | Bowling Green Hot Rods | Pit | 282 | 69.2 IP, 42% K | 1.82 | |
| 2021 | Rk | FCL Rays | Pit | 37 | 10.2 IP, 54% K | 0.88 | |
Splits
| Year | vs LHP | vs RHP | Home | Away |
|---|
| 2026 | 0.228 | 0.295 | 0.267 | 0.275 |
| 2025 | 0.316 | 0.413 | 0.350 | 0.411 |
| 2024 | 0.254 | 0.317 | 0.356 | 0.276 |
wOBA by split, from pitch level data, 2015 on. For pitchers the split is the batter side faced.