Mason Thompson
P Round Rock Express| Year | Age | Lvl / Team | G | GS | IP | ERA | FIP | K% | BB% | WAR | MLE rates |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 25 | MIX2 levels | 52 | 0 | 55 | 5.40 | 3.61 | 18.5% | 9.1% | 0.6 | K 18.3% · BB 9.2% · FIP 3.63 |
| 2025 | 27 | MIX4 levels | 29 | 1 | 27 | 8.67 | 4.06 | 21.7% | 14.5% | 0.2 | K 18.3% · BB 16.7% · FIP 4.58 |
| 2026 | 28 | AAATEX | 39 | 3 | 40 | 5.67 | 3.28 | 22.6% | 9.0% | — | K 19.4% · BB 8.1% · FIP 3.51 |
| 2027PROJ | 29 | MLBTEX | 54 | 0 | 57 | 4.64 | 4.67 | 19.5% | 11.0% | -0.1 | |
| 2028PROJ37% MLB | 30 | MLBTEX | 19 | 0 | 20 | 4.78 | 4.88 | 18.8% | 11.3% | -0.1 | |
| 2029PROJ55% MLB | 31 | MLBTEX | 26 | 0 | 27 | 4.98 | 5.11 | 18.1% | 11.7% | -0.2 |
Grades · Statcast · Arsenal · Contract
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.
Career Stats + Projections
Methodology▸ how WAR & MLE are computed
Stats are park-neutral MLB equivalents. The "TEAM" column shows current org affiliation only — we do NOT project at that team's park.
Rates (K%, BB%, HR-BF) are park-stripped; MiLB stat lines are translated to their MLB-equivalent via per-level MLE factors.
WAR is computed from projected runs prevented vs a replacement pitcher (the marginal arm a team would call up if this pitcher were unavailable) — calibrated to industry-standard fWAR.
| Year | Age | Lvl | Team | G | GS | IP | BF | K | BB | HR | GS% | IP/G | K% | BB% | K-BB% | HR% | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▸ Career — actual stats, one row per year (as recorded, no adjustments) | |||||||||||||||||||
| ▸ Career — adjusted (each season translated to a park/league-neutral MLB-equivalent line; levels combined per year) | |||||||||||||||||||
| ▸ Model inputs — neutral MLE (past 3 seasons + 2027 so far) | |||||||||||||||||||
| 2016 | 18 | ROK MLE | AZL Padres | 5 | 5 | 12 | 50 | 12 | 5 | 0 | 100% | 2.4 | 16.3% | 12.5% | 3.8% | 0.0% | 2.25 | 3.31 | — |
| 2016 | 18 | ROK RAW | AZL Padres | 5 | 5 | 12 | 50 | 12 | 5 | 0 | 100% | 2.4 | 24.0% | 10.0% | 14.0% | 0.0% | 2.25 | 2.35 | — |
| 2017 | 19 | A MLE | Fort Wayne TinCaps | 7 | 7 | 27 | 115 | 28 | 12 | 2 | 100% | 3.9 | 18.0% | 12.3% | 5.7% | 2.2% | 4.67 | 4.32 | — |
| 2017 | 19 | A RAW | Fort Wayne TinCaps | 7 | 7 | 27 | 115 | 28 | 12 | 2 | 100% | 3.9 | 24.3% | 10.4% | 13.9% | 1.7% | 4.67 | 3.32 | — |
| 2018 | 20 | A MLE | Fort Wayne TinCaps | 22 | 20 | 93 | 425 | 97 | 37 | 8 | 91% | 4.2 | 16.9% | 10.3% | 6.6% | 2.1% | 4.94 | 4.12 | — |
| 2018 | 20 | A RAW | Fort Wayne TinCaps | 22 | 20 | 93 | 425 | 97 | 37 | 8 | 91% | 4.2 | 22.8% | 8.7% | 14.1% | 1.9% | 4.94 | 3.33 | — |
| 2019 | 21 | MIX MLE | 2 levels | 10 | 8 | 27 | 132 | 25 | 22 | 4 | 80% | 2.7 | 15.5% | 20.0% | -4.5% | 3.8% | 7.24 | 6.43 | — |
| 2019 | 21 | MIX RAW | 2 levels | 10 | 8 | 27 | 132 | 25 | 22 | 4 | 80% | 2.7 | 18.9% | 16.7% | 2.3% | 3.0% | 7.24 | 5.59 | — |
| 2021 | 23 | MIX MLE | 2 levels | 54 | 0 | 51 | 231 | 47 | 22 | 8 | 0% | 1.0 | 19.1% | 9.7% | 9.4% | 3.4% | 4.91 | 4.57 | -0.0 |
| 2021 | 23 | MIX RAW | 2 levels | 54 | 0 | 51 | 231 | 47 | 22 | 8 | 0% | 1.0 | 20.3% | 9.5% | 10.8% | 3.5% | 4.91 | 4.58 | -0.0 |
| 2022 | 24 | MIX MLE | 3 levels | 38 | 4 | 43 | 180 | 41 | 13 | 2 | 11% | 1.1 | 18.9% | 7.9% | 11.0% | 1.2% | 3.16 | 3.15 | +0.7 |
| 2022 | 24 | MIX RAW | 3 levels | 38 | 4 | 43 | 180 | 41 | 13 | 2 | 11% | 1.1 | 22.8% | 7.2% | 15.6% | 1.1% | 3.16 | 2.70 | +0.9 |
| 2023 | 25 | MIX MLE | 2 levels | 52 | 0 | 55 | 243 | 45 | 22 | 4 | 0% | 1.1 | 18.3% | 9.2% | 9.2% | 1.7% | 5.40 | 3.63 | +0.6 |
| 2023 | 25 | MIX RAW | 2 levels | 52 | 0 | 55 | 243 | 45 | 22 | 4 | 0% | 1.1 | 18.5% | 9.1% | 9.5% | 1.6% | 5.40 | 3.61 | +0.6 |
| 2025 | 27 | MIX MLE | 4 levels | 29 | 1 | 27 | 138 | 30 | 20 | 2 | 3% | 0.9 | 18.3% | 16.7% | 1.7% | 1.7% | 8.67 | 4.58 | -0.0 |
| 2025 | 27 | MIX MLE | 4 levels | 29 | 1 | 27 | 138 | 30 | 20 | 2 | 3% | 0.9 | 18.3% | 16.7% | 1.7% | 1.7% | 8.67 | 4.58 | -0.0 |
| 2025 | 27 | MIX RAW | 4 levels | 29 | 1 | 27 | 138 | 30 | 20 | 2 | 3% | 0.9 | 21.7% | 14.5% | 7.2% | 1.4% | 8.67 | 4.06 | +0.2 |
| 2026 | 28 | AAA MLE | Round Rock Express | 39 | 3 | 40 | 177 | 40 | 16 | 3 | 8% | 1.0 | 19.4% | 8.1% | 11.3% | 1.9% | 5.67 | 3.51 | — |
| 2026 | 28 | AAA MLE | Round Rock Express | 39 | 3 | 40 | 177 | 40 | 16 | 3 | 8% | 1.0 | 19.4% | 8.1% | 11.3% | 1.9% | 5.67 | 3.51 | — |
| 2026 | 28 | AAA RAW | Round Rock Express | 39 | 3 | 40 | 177 | 40 | 16 | 3 | 8% | 1.0 | 22.6% | 9.0% | 13.6% | 1.7% | 5.67 | 3.28 | — |
| ▸ Career totals (raw MLB only — as recorded) | |||||||||||||||||||
| MLB Career | — | 120 | 0 | 114 | 522 | 93 | 55 | 11 | 0% | 1.0 | 17.8% | 10.5% | 7.3% | 2.1% | 5.21 | 4.17 | +0.5 | ||
| ▸ 2027 season — projected remainder (no 2027 stats recorded) | |||||||||||||||||||
| 2027 | 29 | MLB | TEX | 54 | 0 | 57 | 241 | 47 | 26 | 6 | 0% | 1.1 | 19.5% | 11.0% | 8.5% | 2.6% | 4.64 | 4.67 | -0.1 |
| ▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%) | |||||||||||||||||||
| 2028 | 30 | MLB MLE | TEX | 51 | 0 | 53 | 225 | 42 | 25 | 6 | 0% | 1.0 | 18.8% | 11.3% | 7.5% | 2.8% | 4.78 | 4.88 | -0.2 |
| 2029 | 31 | MLB MLE | TEX | 47 | 0 | 50 | 210 | 38 | 24 | 6 | 0% | 1.1 | 18.1% | 11.7% | 6.4% | 3.1% | 4.98 | 5.11 | -0.3 |
| 2028 | 30 | MLB CTX | TEX | 19 | 0 | 20 | 84 | 16 | 10 | 2 | 0% | 1.1 | 18.8% | 11.3% | 7.5% | 2.8% | 4.78 | 4.88 | -0.1 |
| 2029 | 31 | MLB CTX | TEX | 26 | 0 | 27 | 114 | 21 | 13 | 3 | 0% | 1.0 | 18.1% | 11.7% | 6.4% | 3.1% | 4.98 | 5.11 | -0.2 |
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||
| Career | — | RAW | 165 | 0 | 161 | 721 | 130 | 78 | 17 | 0% | 1.0 | 18.0% | 10.8% | 7.2% | 2.3% | 5.12 | 4.24 | +0.6 | |
| / 200 IP | — | RAW | 205 | 0 | 200 | 895 | 161 | 97 | 21 | 0% | 1.0 | 18.0% | 10.8% | 7.2% | 2.3% | 5.12 | 4.24 | +0.7 | |
| Career | — | MLE | 256 | 48 | 375 | 1691 | 304 | 187 | 36 | 19% | 1.5 | 17.9% | 11.0% | 6.9% | 2.1% | 5.21 | 4.15 | -0.0 | |
| / 200 IP | — | MLE | 137 | 26 | 200 | 902 | 162 | 100 | 19 | 19% | 1.5 | 17.9% | 11.0% | 6.9% | 2.1% | 5.21 | 4.15 | -0.0 | |
Career Comps
Completed MLB careers (no pro action in 2+ yrs) whose totals — actual + projected — most resemble this player's. Pool: 1,474 reliever careers (754 from 1990-2025 + 720 historical, 1901-2023), also matched on career-to-date at the same age. * Historical (Lahman) careers: rates era-adjusted to 2001-24 league levels; WAR is an OGILVIE proxy.
| Player | 162s | IP/yr | K% | BB% | HR/9 | ERA |
|---|---|---|---|---|---|---|
| OGILVIE CAREER PROJECTION | 1.4 | 46 | 18.4% | 11.2% | 0.97 | 4.97 |
| Tyler Yates ('09) | 1.2 | 62 | 19.7% | 12.0% | 0.94 | 5.12 |
| Gene Harris ('89-'95, -1 WAR*) | 1.2 | 40 | 20.0%* | 12.5%* | 0.98* | 4.96* |
| Jesus Colome ('10) | 2.1 | 53 | 17.3% | 11.7% | 1.03 | 4.69 |
| Chris Resop ('13) | 1.2 | 61 | 18.6% | 10.3% | 0.85 | 4.62 |
| Mike Munoz ('89-'00, 1 WAR*) | 1.8 | 46 | 17.6%* | 10.2%* | 0.93* | 4.46* |
| Bob Allen ('61-'67, -1 WAR*) | 1.4 | 55 | 21.4%* | 10.4%* | 0.89* | 4.79* |