Jack Leiter
P Texas Rangers| Year | Age | Lvl / Team | G | GS | IP | ERA | FIP | K% | BB% | WAR | MLE rates |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 24 | MIX2 levels | 26 | 22 | 113 | 5.19 | 3.94 | 28.0% | 10.3% | 2.0 | K 25.0% · BB 9.6% · FIP 4.22 |
| 2025 | 25 | MIX2 levels | 30 | 30 | 156 | 3.74 | 3.96 | 23.0% | 10.3% | 2.7 | K 22.9% · BB 10.4% · FIP 3.90 |
| 2026 | 26 | MIX3 levels | 18 | 17 | 87 | 5.61 | 4.54 | 23.8% | 9.8% | 0.9 | K 23.4% · BB 9.9% · FIP 4.39 |
| 2027PROJ | 27 | MLBTEX | 7 | 7 | 41 | 4.67 | 4.53 | 24.3% | 10.3% | 0.4 | |
| 2028PROJ95% MLB | 28 | MLBTEX | 12 | 12 | 75 | 4.78 | 4.76 | 24.1% | 10.5% | 0.7 | |
| 2029PROJ95% MLB | 29 | MLBTEX | 12 | 12 | 69 | 4.86 | 4.92 | 23.6% | 10.7% | 0.5 |
Grades · Statcast · Contract
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) | |||||||||||||||||||
| 2022 | 22 | AA MLE | Frisco RoughRiders | 23 | 22 | 93 | 425 | 109 | 56 | 11 | 96% | 4.0 | 20.8% | 14.5% | 6.3% | 3.4% | 5.54 | 5.05 | — |
| 2022 | 22 | AA RAW | Frisco RoughRiders | 23 | 22 | 93 | 425 | 109 | 56 | 11 | 96% | 4.0 | 25.6% | 13.2% | 12.5% | 2.6% | 5.54 | 4.10 | — |
| 2023 | 23 | MIX MLE | 2 levels | 20 | 20 | 85 | 371 | 114 | 49 | 16 | 100% | 4.2 | 25.4% | 14.7% | 10.7% | 4.9% | 5.19 | 5.52 | — |
| 2023 | 23 | MIX RAW | 2 levels | 20 | 20 | 85 | 371 | 114 | 49 | 16 | 100% | 4.2 | 30.7% | 13.2% | 17.5% | 4.3% | 5.19 | 4.59 | — |
| 2024 | 24 | MIX MLE | 2 levels | 26 | 22 | 113 | 503 | 141 | 52 | 17 | 85% | 4.3 | 25.0% | 9.6% | 15.3% | 3.7% | 5.19 | 4.22 | +1.6 |
| 2024 | 24 | MIX MLE | 2 levels | 26 | 22 | 113 | 503 | 141 | 52 | 17 | 85% | 4.3 | 25.0% | 9.6% | 15.3% | 3.7% | 5.19 | 4.22 | +1.6 |
| 2024 | 24 | MIX RAW | 2 levels | 26 | 22 | 113 | 503 | 141 | 52 | 17 | 85% | 4.3 | 28.0% | 10.3% | 17.7% | 3.4% | 5.19 | 3.94 | +2.0 |
| 2025 | 25 | MIX MLE | 2 levels | 30 | 30 | 156 | 661 | 152 | 68 | 18 | 100% | 5.2 | 22.9% | 10.4% | 12.5% | 2.6% | 3.74 | 3.90 | +2.8 |
| 2025 | 25 | MIX MLE | 2 levels | 30 | 30 | 156 | 661 | 152 | 68 | 18 | 100% | 5.2 | 22.9% | 10.4% | 12.5% | 2.6% | 3.74 | 3.90 | +2.8 |
| 2025 | 25 | MIX RAW | 2 levels | 30 | 30 | 156 | 661 | 152 | 68 | 18 | 100% | 5.2 | 23.0% | 10.3% | 12.7% | 2.7% | 3.74 | 3.96 | +2.7 |
| 2026 | 26 | MIX MLE | 3 levels | 18 | 17 | 87 | 387 | 92 | 38 | 15 | 94% | 4.8 | 23.4% | 9.9% | 13.5% | 3.7% | 5.61 | 4.39 | +1.0 |
| 2026 | 26 | MIX MLE | 3 levels | 18 | 17 | 87 | 387 | 92 | 38 | 15 | 94% | 4.8 | 23.4% | 9.9% | 13.5% | 3.7% | 5.61 | 4.39 | +1.0 |
| 2026 | 26 | MIX RAW | 3 levels | 18 | 17 | 87 | 387 | 92 | 38 | 15 | 94% | 4.8 | 23.8% | 9.8% | 14.0% | 3.9% | 5.61 | 4.54 | +0.9 |
| ▸ Career totals (raw MLB only — as recorded) | |||||||||||||||||||
| MLB Career | — | 53 | 50 | 267 | 1174 | 262 | 119 | 39 | 94% | 5.0 | 22.3% | 10.1% | 12.2% | 3.3% | 4.95 | 4.37 | +3.2 | ||
| ▸ 2027 season — projected remainder (no 2027 stats recorded) | |||||||||||||||||||
| 2027 | 27 | MLB | TEX | 7 | 7 | 41 | 173 | 42 | 18 | 6 | 100% | 5.9 | 24.3% | 10.3% | 13.9% | 3.3% | 4.67 | 4.53 | +0.4 |
| ▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%) | |||||||||||||||||||
| 2028 | 28 | MLB MLE | TEX | 13 | 13 | 79 | 334 | 81 | 35 | 11 | 100% | 6.1 | 24.1% | 10.5% | 13.7% | 3.4% | 4.64 | 4.62 | +0.7 |
| 2029 | 29 | MLB MLE | TEX | 12 | 12 | 73 | 308 | 73 | 33 | 11 | 100% | 6.1 | 23.6% | 10.7% | 12.8% | 3.5% | 4.72 | 4.78 | +0.5 |
| 2030 | 30 | MLB MLE | TEX | 10 | 10 | 62 | 263 | 60 | 29 | 10 | 100% | 6.2 | 22.9% | 11.0% | 11.8% | 3.7% | 4.88 | 4.99 | +0.3 |
| 2031 | 31 | MLB MLE | TEX | 8 | 8 | 50 | 209 | 46 | 24 | 8 | 100% | 6.2 | 22.1% | 11.4% | 10.7% | 3.9% | 5.08 | 5.22 | +0.1 |
| 2028 | 28 | MLB CTX | TEX | 12 | 12 | 75 | 317 | 76 | 33 | 11 | 100% | 6.2 | 24.1% | 10.5% | 13.7% | 3.6% | 4.78 | 4.76 | +0.7 |
| 2029 | 29 | MLB CTX | TEX | 12 | 12 | 69 | 291 | 69 | 31 | 11 | 100% | 5.8 | 23.6% | 10.7% | 12.8% | 3.8% | 4.86 | 4.92 | +0.5 |
| 2030 | 30 | MLB CTX | TEX | 10 | 10 | 59 | 249 | 57 | 27 | 10 | 100% | 5.9 | 22.9% | 11.0% | 11.8% | 4.0% | 5.03 | 5.14 | +0.3 |
| 2031 | 31 | MLB CTX | TEX | 8 | 8 | 47 | 198 | 44 | 23 | 8 | 100% | 5.9 | 22.1% | 11.4% | 10.7% | 4.2% | 5.24 | 5.38 | +0.1 |
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||
| Career | — | RAW | 95 | 92 | 518 | 2233 | 509 | 234 | 80 | 97% | 5.5 | 22.8% | 10.5% | 12.3% | 3.6% | 4.95 | 4.47 | +5.6 | |
| / 200 IP | — | RAW | 37 | 35 | 200 | 862 | 197 | 90 | 31 | 97% | 5.5 | 22.8% | 10.5% | 12.3% | 3.6% | 4.95 | 4.47 | +2.2 | |
| Career | — | MLE | 117 | 111 | 533 | 2347 | 550 | 271 | 82 | 95% | 4.6 | 23.4% | 11.6% | 11.9% | 3.5% | 4.89 | 4.51 | +4.8 | |
| / 200 IP | — | MLE | 44 | 42 | 200 | 880 | 206 | 102 | 31 | 95% | 4.6 | 23.4% | 11.6% | 11.9% | 3.5% | 4.89 | 4.51 | +1.8 | |
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 AAARound Rock Express · 77 IPFIP 3.29 → 3.86 (+0.57)K% 33.3% → 28.7%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 33.33% | — | ×0.860 | 28.67% |
| BB% (unintentional) /BF | 10.61% | — | ×0.900 | 9.55% |
| HR / BF /BF | 3.03% | ÷0.928 | ×1.100 | 3.59% |
Factors used: pitcher AAA level factors (Triple-A 2023+ robo-zone set: walks improve on promotion) — K ×0.86, BB ×0.90, HR ×1.10. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 86).
Result: FIP 3.29 → 3.86, 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 AAFrisco RoughRiders · 82 IPFIP 4.34 → 5.52 (+1.18)K% 31.3% → 25.4%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 31.34% | — | ×0.810 | 25.38% |
| BB% (unintentional) /BF | 13.39% | — | ×1.100 | 14.73% |
| HR / BF /BF | 3.99% | ÷0.974 | ×1.200 | 4.91% |
Factors used: pitcher AA level factors — K ×0.81, BB ×1.10, HR ×1.20. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 95).
Result: FIP 4.34 → 5.52, 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 AAARound Rock Express · 3 IPFIP 8.17 → 8.62 (+0.46)K% 20.0% → 17.2%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 20.00% | — | ×0.860 | 17.20% |
| BB% (unintentional) /BF | 10.00% | — | ×0.900 | 9.00% |
| HR / BF /BF | 10.00% | ÷1.035 | ×1.100 | 10.63% |
Factors used: pitcher AAA level factors (Triple-A 2023+ robo-zone set: walks improve on promotion) — K ×0.86, BB ×0.90, HR ×1.10. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 107).
Result: FIP 8.17 → 8.62, 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).
2022 AAFrisco RoughRiders · 93 IPFIP 4.02 → 5.05 (+1.02)K% 25.6% → 20.8%
| Component | Raw | Park ÷ | Level factor × | = MLE |
|---|---|---|---|---|
| K% /BF | 25.65% | — | ×0.810 | 20.77% |
| BB% (unintentional) /BF | 13.18% | — | ×1.100 | 14.49% |
| HR / BF /BF | 2.59% | ÷0.915 | ×1.200 | 3.40% |
Factors used: pitcher AA level factors — K ×0.81, BB ×1.10, HR ×1.20. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 83).
Result: FIP 4.02 → 5.05, 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).
Career Comps
Completed MLB careers (no pro action in 2+ yrs) whose totals — actual + projected — most resemble this player's. Pool: 1,234 reliever careers (754 from 1990-2025 + 480 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 | 2.9 | 72 | 22.9% | 10.5% | 1.33 | 4.86 |
| Rich DeLucia ('90-'99, 1 WAR*) | 3.1 | 78 | 23.2%* | 10.5%* | 1.55* | 4.65* |
| Phil Hennigan ('69-'73, -0 WAR*) | 1.4 | 70 | 20.9%* | 10.4%* | 1.50* | 4.95* |
| Jay Witasick ('07) | 3.7 | 73 | 19.6% | 11.0% | 1.19 | 4.64 |
| Steve Wilson ('88-'93, 0 WAR*) | 1.7 | 69 | 21.6%* | 8.8%* | 1.25* | 4.84* |
| Bobby Ayala ('99) | 2.9 | 72 | 21.3% | 9.7% | 1.11 | 4.78 |
| Manny Parra ('15) | 3.1 | 78 | 20.8% | 10.6% | 1.00 | 4.90 |