Zack Hess
P West Michigan Whitecaps| Year | Age | Lvl / Team | G | GS | IP | ERA | FIP | K% | BB% | WAR | MLE rates | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 24 | MIX2 levels | 45 | 0 | 53 | 3.42 | 3.84 | 29.6% | 14.2% | — | K 22.9% · BB 16.6% · FIP 5.47 | |
| 2023 | 26 | MIX2 levels | 10 | 0 | 10 | 7.20 | 3.90 | 25.5% | 13.7% | — | K 25.5% · BB 13.7% · FIP 3.76 | |
| 2024 | 27 | A+DET | 25 | 0 | 30 | 6.30 | 4.73 | 23.1% | 17.7% | — | K 17.8% · BB 20.3% · FIP 5.75 | |
| 2025 | 28 | No MLB games played | ||||||||||
| 2026 | 29 | No MLB games played | ||||||||||
| 2027PROJ | 30 | MLBDET | — | — | 0 | 4.90 | 4.90 | 22.1% | 13.0% | — | ||
| 2028PROJ30% MLB | 31 | MLBDET | 5 | 0 | 5 | 4.96 | 5.04 | 21.9% | 13.0% | -0.0 | ||
Grades · 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 the standard WAR scale.
| 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) | |||||||||||||||||||
| 2019 | 22 | MIX MLE | 2 levels | 17 | 0 | 22 | 95 | 23 | 12 | 2 | 0% | 1.3 | 18.1% | 13.1% | 5.0% | 3.2% | 3.27 | 5.00 | — |
| 2019 | 22 | MIX RAW | 2 levels | 17 | 0 | 22 | 95 | 23 | 12 | 2 | 0% | 1.3 | 24.2% | 12.6% | 11.6% | 2.1% | 3.27 | 3.83 | — |
| 2021 | 24 | MIX MLE | 2 levels | 45 | 0 | 53 | 233 | 69 | 33 | 6 | 0% | 1.2 | 22.9% | 16.6% | 6.3% | 4.0% | 3.42 | 5.47 | — |
| 2021 | 24 | MIX RAW | 2 levels | 45 | 0 | 53 | 233 | 69 | 33 | 6 | 0% | 1.2 | 29.6% | 14.2% | 15.5% | 2.6% | 3.42 | 3.84 | — |
| 2023 | 26 | MIX MLE | 2 levels | 10 | 0 | 10 | 51 | 13 | 7 | 1 | 0% | 1.0 | 25.5% | 13.7% | 11.8% | 2.0% | 7.20 | 3.76 | — |
| 2023 | 26 | MIX RAW | 2 levels | 10 | 0 | 10 | 51 | 13 | 7 | 1 | 0% | 1.0 | 25.5% | 13.7% | 11.8% | 2.0% | 7.20 | 3.90 | — |
| 2024 | 27 | A+ MLE | West Michigan Whitecaps | 25 | 0 | 30 | 147 | 34 | 26 | 3 | 0% | 1.2 | 17.8% | 20.3% | -2.5% | 2.9% | 6.30 | 5.75 | — |
| 2024 | 27 | A+ MLE | West Michigan Whitecaps | 25 | 0 | 30 | 147 | 34 | 26 | 3 | 0% | 1.2 | 17.8% | 20.3% | -2.5% | 2.9% | 6.30 | 5.75 | — |
| 2024 | 27 | A+ RAW | West Michigan Whitecaps | 25 | 0 | 30 | 147 | 34 | 26 | 3 | 0% | 1.2 | 23.1% | 17.7% | 5.4% | 2.0% | 6.30 | 4.73 | — |
| ▸ 2027 season — projected remainder (no 2027 stats recorded) | |||||||||||||||||||
| 2027 | 30 | MLB | DET | — | — | 0 | — | — | — | — | — | — | 22.1% | 13.0% | 9.2% | 3.0% | 4.90 | 4.90 | — |
| ▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%) | |||||||||||||||||||
| 2028 | 31 | MLB MLE | DET | 16 | 0 | 17 | 71 | 15 | 9 | 2 | 0% | 1.0 | 21.9% | 13.0% | 8.9% | 3.2% | 4.96 | 5.04 | -0.1 |
| 2028 | 31 | MLB CTX | DET | 5 | 0 | 5 | 21 | 5 | 3 | 1 | 0% | 1.0 | 21.9% | 13.0% | 8.9% | 3.2% | 4.96 | 5.04 | -0.0 |
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||
| Career | — | RAW | 5 | 0 | 5 | 21 | 5 | 3 | 1 | 0% | 1.0 | 21.9% | 13.0% | 8.9% | 3.2% | 4.96 | 4.66 | -0.0 | |
| / 200 IP | — | RAW | 190 | 0 | 200 | 844 | 198 | 119 | 40 | 0% | 1.1 | 21.9% | 13.0% | 8.9% | 3.2% | 4.96 | 4.66 | -0.3 | |
| Career | — | MLE | 97 | 0 | 115 | 526 | 110 | 88 | 18 | 0% | 1.2 | 20.9% | 16.7% | 4.1% | 3.4% | 4.47 | 5.30 | -0.1 | |
| / 200 IP | — | MLE | 169 | 0 | 200 | 917 | 191 | 153 | 31 | 0% | 1.2 | 20.9% | 16.7% | 4.1% | 3.4% | 4.47 | 5.30 | -1.1 | |
How the minor-league lines were translated
One row per minor-league stint. Open a row to see each step: the raw rate, the park adjustment, the league/level factor, the age adjustment (hitters) and the resulting MLE rate. Factors are the same ones listed on the MLE Factors page.
2024 A+West Michigan Whitecaps · 30 IPFIP 4.51 → 5.75 (+1.24)K% 23.1% → 17.8%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 23.13% | — | ×0.770 | 17.81% |
| BB% (unintentional) /BF | 17.69% | — | ×1.150 | 20.34% |
| HR / BF /BF | 2.04% | ÷0.889 | ×1.250 | 2.87% |
Factors used: pitcher A+ level factors — K ×0.77, BB ×1.15, HR ×1.25. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 78).
Result: FIP 4.51 → 5.75, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).
2023 A+West Michigan Whitecaps · 6 IPFIP 4.04 → 5.67 (+1.64)K% 29.6% → 22.8%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 29.63% | — | ×0.770 | 22.81% |
| BB% (unintentional) /BF | 11.11% | — | ×1.150 | 12.78% |
| HR / BF /BF | 3.70% | ÷0.882 | ×1.250 | 5.25% |
Factors used: pitcher A+ level factors — K ×0.77, BB ×1.15, HR ×1.25. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 76).
Result: FIP 4.04 → 5.67, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).
2023 ROKFCL Tigers · 4 IPFIP 3.45 → 4.54 (+1.09)K% 20.8% → 14.2%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 20.83% | — | ×0.680 | 14.17% |
| BB% (unintentional) /BF | 16.67% | — | ×1.250 | 20.83% |
| HR / BF /BF | 0.00% | ÷0.924 | ×1.400 | 0.00% |
Factors used: pitcher ROK level factors — K ×0.68, BB ×1.25, HR ×1.40. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 85).
Result: FIP 3.45 → 4.54, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).
2021 A+West Michigan Whitecaps · 50 IPFIP 3.90 → 5.47 (+1.57)K% 29.7% → 22.9%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 29.73% | — | ×0.770 | 22.89% |
| BB% (unintentional) /BF | 14.41% | — | ×1.150 | 16.58% |
| HR / BF /BF | 2.70% | ÷0.841 | ×1.250 | 4.02% |
Factors used: pitcher A+ level factors — K ×0.77, BB ×1.15, HR ×1.25. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 68).
Result: FIP 3.90 → 5.47, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).
2019 AWest Michigan Whitecaps · 21 IPFIP 3.66 → 5.00 (+1.34)K% 24.4% → 18.1%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 24.44% | — | ×0.740 | 18.09% |
| BB% (unintentional) /BF | 11.11% | — | ×1.180 | 13.11% |
| HR / BF /BF | 2.22% | ÷0.895 | ×1.300 | 3.23% |
Factors used: pitcher A level factors — K ×0.74, BB ×1.18, HR ×1.30. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 79).
Result: FIP 3.66 → 5.00, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).