Mason Thompson
P
Round Rock Express
+0.0
WAR
Age 28
RHP
6'6" / 241 lbs
AAA
peak 0.1 · 2026
ERA5.45
FIP4.58
xFIP6.33
SIERA6.04
K%21.2%
BB%11.1%
K-BB%10.1%
IP14
trajectory · 10 yrs
0.1peak
2026
STUF4545
CTRL4040
CMD3535
K†5050
FB Velo
p5494.8
Whiff%
p2421.6%
K%
p2318.3%
xwOBA vs
p100.370
SI (41%)
CU (5%)
CH (3%)
SL-1.2 (33%)
FB-2.7 (59%)
Career (MLE) + Projections
Park-neutral MLB-equivalent. MiLB translated via MLE factors. FIP-based WAR vs replacement FIP=5.3 (SP) / 4.95 (RP, <80 IP). FIP+ = runs above league-avg FIP · REP = replacement-level bonus.
| Year | Age | Lvl | Team | G | GS | IP | BF | K | BB | HR | K% | BB% | HR% | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | 18 | ROK | AZL Padres | 5 | 5 | 12 | 50 | 12 | 5 | 0 | 16.3% | 12.5% | 0.0% | 2.25 | 3.31 | +0.2 |
| 2017 | 19 | A | Fort Wayne TinCaps | 7 | 7 | 27 | 115 | 28 | 12 | 2 | 18.0% | 12.3% | 2.1% | 4.67 | 4.32 | +0.2 |
| 2018 | 20 | A | Fort Wayne TinCaps | 22 | 20 | 93 | 425 | 97 | 37 | 8 | 16.9% | 10.3% | 2.2% | 4.94 | 4.17 | +1.1 |
| 2019 | 21 | A+ | Lake Elsinore Storm | 10 | 8 | 27 | 132 | 25 | 22 | 4 | 15.5% | 20.0% | 4.0% | 7.24 | 6.51 | -0.5 |
| 2021 | 23 | MLB | Washington Nationals | 54 | 0 | 51 | 231 | 47 | 22 | 8 | 19.1% | 9.7% | 3.5% | 4.91 | 4.63 | +0.2 |
| 2022 | 24 | MLB | Washington Nationals | 38 | 4 | 43 | 180 | 41 | 13 | 2 | 18.9% | 7.9% | 1.1% | 3.16 | 3.13 | +0.9 |
| 2023 | 25 | MLB | Washington Nationals | 52 | 0 | 55 | 243 | 45 | 22 | 4 | 18.3% | 9.2% | 1.7% | 5.40 | 3.65 | +0.8 |
| 2025 | 27 | MLB | Washington Nationals | 29 | 1 | 27 | 138 | 30 | 20 | 2 | 18.3% | 16.7% | 1.8% | 8.67 | 4.67 | +0.1 |
| ▸ 2026 Season | ||||||||||||||||
| 2026 | 28 | AAA | Round Rock Express | 6 | 0 | 6 | 26 | 5 | 2 | 1 | — | — | — | 4.76 | — | — |
| ROS | 28 | MLB | TEX | 14 | — | 14 | 60 | 13 | 7 | 2 | 21.2% | 12.2% | 2.7% | 5.63 | 4.71 | +0.0 |
| 2026 Total | 28 | MLB | TEX | — | — | 20 | 86 | 18 | 9 | 3 | 20.6% | 10.9% | 3.0% | 5.38 | 3.37 | +0.4 |
| ▸ 2027+ Projections — Marcel base + age-bracket aging | ||||||||||||||||
| 2027 | 29 | MLB | TEX | 20 | — | 20 | 84 | 18 | 10 | 2 | 20.8% | 12.3% | 2.7% | 5.12 | 4.79 | +0.0 |
| ▸ Career (all levels · actual + projected) | ||||||||||||||||
| Career | — | 223 | 45 | 341 | 1540 | 274 | 174 | 35 | 17.8% | 11.3% | 2.3% | 5.15 | 4.27 | +4.0 | ||
| / 200 IP | — | 131 | 26 | 200 | 903 | 161 | 102 | 21 | 17.8% | 11.3% | 2.3% | 5.15 | 4.27 | +2.3 | ||
Career Path Comps
What happened to similar pitchers from this age · Y-axis: ERA+ (100 = league avg, 150 = elite, 80 = below) · Bands: P10–P90 outer, P25–P75 inner · Gold: OGILVIE projection
| Profile at Match Age | Next 3 Yrs | Career | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comp | Age | Role | FIP | K% | BB% | HR/BF | BABIP | FIP | K% | K-BB% | IP | ΔFIP | Low FIP | IP | Match |
| Mason Thompson (OGILVIE) | — | — | 4.71 | 21.2% | 12.2% | 2.7% | — | 4.79 | 20.7% | 8.4% | 20 | +0.08 | — | — | — |
| Spencer Bivens R 2026 · 4.85 FIP | 28 | SU | 4.85 | 19.8% | 13.5% | 3.1% | .265 | 3.87 | 18.2% | 10.2% | 272 | -0.98 | 3.45 | 315 | 83 |
| Wirfin Obispo R 2028 · 4.83 FIP | 30 | SU | 4.83 | 18.6% | 12.2% | 3.2% | .292 | 1.31 | 28.6% | 24.5% | 126 | -3.52 | 1.30 | 218 | 83 |
| Joe Colón J R 2025 · 4.30 FIP | 27 | SU | 4.30 | 20.4% | 12.1% | 2.5% | .315 | — | — | — | — | — | 3.24 | 113 | 83 |
| Arcenio Leon R 2026 · 4.85 FIP | 28 | SU | 4.85 | 17.9% | 12.5% | 3.1% | .450 | 3.38 | 18.0% | 9.1% | 85 | -1.47 | 3.01 | 115 | 80 |
| Cole McDonald R 2025 · 5.16 FIP | 27 | SU | 5.16 | 21.1% | 13.8% | 3.8% | .281 | — | — | — | — | — | 2.84 | 153 | 79 |
| Ronald Peña R 2025 · 4.57 FIP | 27 | SU | 4.57 | 20.5% | 12.6% | 2.9% | .355 | 4.49 | 16.5% | 6.1% | 39 | -0.08 | 3.70 | 187 | 78 |
| Rob Scahill R 2026 · 3.75 FIP | 28 | SU | 3.75 | 16.9% | 7.7% | 2.0% | .288 | 3.35 | 17.9% | 10.1% | 171 | -0.40 | 3.08 | 201 | 78 |
| Tanner Scheppers R 2026 · 4.38 FIP | 28 | SW | 4.38 | 17.7% | 11.2% | 2.5% | .263 | 4.82 | 15.7% | 9.0% | 48 | +0.44 | 4.38 | 101 | 78 |
| José Cisnero R 2025 · 4.50 FIP | 27 | SU | 4.50 | 26.1% | 11.7% | 3.9% | .367 | 3.92 | 24.5% | 13.3% | 75 | -0.58 | 2.26 | 279 | 77 |
| Jose Rafael De Paula R 2026 · 4.51 FIP | 28 | SU | 4.51 | 23.3% | 13.6% | 3.0% | .313 | — | — | — | — | — | 2.65 | 315 | 77 |
| Dustin Molleken R 2028 · 3.72 FIP | 30 | SW | 3.72 | 20.4% | 11.7% | 1.6% | .287 | 3.88 | 20.6% | 8.4% | 77 | +0.16 | 3.38 | 129 | 77 |
| Javy Guerra R 2028 · 4.30 FIP | 30 | SW | 4.30 | 21.3% | 13.9% | 2.3% | .303 | 3.87 | 19.5% | 13.0% | 193 | -0.43 | 3.01 | 260 | 77 |
| Erik Davis R 2026 · 3.95 FIP | 28 | SU | 3.95 | 17.9% | 13.5% | 1.2% | .363 | 3.64 | 21.1% | 11.3% | 181 | -0.31 | 3.05 | 227 | 76 |
| Matt Carasiti R 2026 · 4.01 FIP | 28 | SU | 4.01 | 18.6% | 10.0% | 2.2% | .276 | 4.87 | 22.4% | 10.9% | 22 | +0.86 | 2.78 | 312 | 76 |
| Brandon Cunniff R 2026 · 4.82 FIP | 28 | SW | 4.82 | 20.1% | 11.6% | 3.6% | .275 | 6.70 | 13.9% | -1.9% | 30 | +1.88 | 3.88 | 180 | 76 |
| Irving Jimenez R 2025 · 4.48 FIP | 27 | SU | 4.48 | 18.9% | 12.4% | 2.6% | .417 | — | — | — | — | — | 3.63 | 104 | 76 |
| Tyler Sturdevant R 2027 · 4.33 FIP | 29 | SU | 4.33 | 21.3% | 8.5% | 3.6% | .241 | 3.99 | 18.5% | 11.9% | 118 | -0.34 | 3.47 | 149 | 76 |
| Mason Vinyard R 2024 · 4.41 FIP | 26 | SU | 4.41 | 21.8% | 14.5% | 2.4% | .254 | — | — | — | — | — | 3.60 | 154 | 76 |
| Ryan Cook R 2026 · 4.78 FIP | 28 | SW | 4.78 | 16.5% | 9.9% | 3.3% | .297 | 3.85 | 25.1% | 14.3% | 50 | -0.93 | 3.85 | 102 | 76 |
| Michael Ynoa R 2025 · 4.68 FIP | 27 | SU | 4.68 | 23.1% | 13.8% | 3.2% | .281 | — | — | — | — | — | 3.32 | 142 | 75 |
Contract
No contract data on file. Pre-MLB players and minor-league free agents do not yet have salary projections — entries are added at first 40-man roster placement.