Jack Leiter

P Texas Rangers
Age 27 RHP 6'1" / 205 lbs MLB Svc 2.0 · Ctrl thru 2030 peak 0.8 · 2028 ILInjured 60-Day (D60)
Overview
MLBSPIL-6040-MANPre-ArbFA 2031
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202424MIX2 levels26221135.193.9428.0%10.3%2.0K 25.0% · BB 9.6% · FIP 4.22
202525MIX2 levels30301563.743.9623.0%10.3%2.7K 22.9% · BB 10.4% · FIP 3.90
202626MIX3 levels1817875.614.5423.8%9.8%0.9K 23.4% · BB 9.9% · FIP 4.39
2027PROJ27MLBTEX77414.674.5324.3%10.3%0.4
2028PROJ95% MLB28MLBTEX1212754.784.7624.1%10.5%0.7
2029PROJ95% MLB29MLBTEX1212694.864.9223.6%10.7%0.5
Last 3 seasons WAR 5.5  ·  Next 3 projected WAR 1.6Projected rows: MLB playing time only, park and league context applied.
ContractESTIMATED
Control thru2030Service2.192First FA2031
2027Pre-Arb$0.8M2028Arb-1$1M2029Arb-2$2M2030Arb-3$2M
Skills · percentileStatcast 2026
FB Velo81
K%57
xwOBA vs29
CompsZack Wheeler (age 27) · Austin Bergner (age 27) · Gavin Williams (age 25)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 120112vR 104
ERA4.67
FIP4.53
K%24.3%
BB%10.3%
K-BB%13.9%
Proj IP41
Value2027 · WAR
Runs saved vs league avg · 41 IP
K: +0.5 runs (Runs saved by strikeouts vs lg-avg K%)+1KBB: -0.7 runs (Runs saved by walk suppression vs lg-avg BB%)-1BBCONTACT: -1.5 runs (Runs saved on contact quality (HR suppression) vs lg)-1CONTACTSTAM: +1.7 runs (Replacement credit for innings volume)+2STAMTotal WAR: +0.01 (41 IP)+0.0WAR
0.00.51.00.40.70.50.327282930313233343536
━ projected WAR━ paid WAR ($/8M) surplus deficit━ post-control+$9M ctrl surplus
Grades · Statcast · Contract
Scouting Grades
STUF5050
CTRL4040
CMD4545
K†6060
Statcast Percentiles
FB Velo
p8196.7
Whiff%
p5125.4%
K%
p5723.4%
xwOBA vs
p290.336
Contract ESTIMATED · service-time + WAR-based estimator (needs verification)
Status   Pre-Arb
MLB Debut   2024
Service   2.192 yrs.days
Team Control Through   2030
First FA Year   2031
YearStatusSalary Proj WAR Value Surplus
2027Pre-Arb$0.8M+0.4$2M+$0.8M
2028Arb-1$1M+0.7$3M+$1M
2029Arb-2$2M+0.5$2M+$0.3M
2030Arb-3$2M+0.3$1.0M+$0.0M (cut)
Totals $4M $7M +$2M

Career Stats + Projections

Real MLB stats plus park-adjusted projections — this season (so far / rest / full), then future seasons and career totals.
basis chips: RAW = as recorded · CTX = with park/league context · A+C = actual + context combined · MLE = level/park-neutral
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.

YearAge LvlTeam GGSIPBF KBBHR GS%IP/G K%BB%K-BB%HR% ERAFIP 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)
202222AA MLEFrisco RoughRiders232293425109561196%4.020.8%14.5%6.3%3.4%5.545.05—
202222AA RAWFrisco RoughRiders232293425109561196%4.025.6%13.2%12.5%2.6%5.544.10—
202323MIX MLE2 levels2020853711144916100%4.225.4%14.7%10.7%4.9%5.195.52—
202323MIX RAW2 levels2020853711144916100%4.230.7%13.2%17.5%4.3%5.194.59—
202424MIX MLE2 levels2622113503141521785%4.325.0%9.6%15.3%3.7%5.194.22+1.6
202424MIX MLE2 levels2622113503141521785%4.325.0%9.6%15.3%3.7%5.194.22+1.6
202424MIX RAW2 levels2622113503141521785%4.328.0%10.3%17.7%3.4%5.193.94+2.0
202525MIX MLE2 levels30301566611526818100%5.222.9%10.4%12.5%2.6%3.743.90+2.8
202525MIX MLE2 levels30301566611526818100%5.222.9%10.4%12.5%2.6%3.743.90+2.8
202525MIX RAW2 levels30301566611526818100%5.223.0%10.3%12.7%2.7%3.743.96+2.7
202626MIX MLE3 levels18178738792381594%4.823.4%9.9%13.5%3.7%5.614.39+1.0
202626MIX MLE3 levels18178738792381594%4.823.4%9.9%13.5%3.7%5.614.39+1.0
202626MIX RAW3 levels18178738792381594%4.823.8%9.8%14.0%3.9%5.614.54+0.9
▸ Career totals (raw MLB only — as recorded)
MLB Career—535026711742621193994%5.022.3%10.1%12.2%3.3%4.954.37+3.2
▸ 2027 season — projected remainder (no 2027 stats recorded)
202727MLBTEX774117342186100%5.924.3%10.3%13.9%3.3%4.674.53+0.4
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202828MLB MLETEX131379334813511100%6.124.1%10.5%13.7%3.4%4.644.62+0.7
202929MLB MLETEX121273308733311100%6.123.6%10.7%12.8%3.5%4.724.78+0.5
203030MLB MLETEX101062263602910100%6.222.9%11.0%11.8%3.7%4.884.99+0.3
203131MLB MLETEX885020946248100%6.222.1%11.4%10.7%3.9%5.085.22+0.1
202828MLB CTXTEX121275317763311100%6.224.1%10.5%13.7%3.6%4.784.76+0.7
202929MLB CTXTEX121269291693111100%5.823.6%10.7%12.8%3.8%4.864.92+0.5
203030MLB CTXTEX101059249572710100%5.922.9%11.0%11.8%4.0%5.035.14+0.3
203131MLB CTXTEX884719844238100%5.922.1%11.4%10.7%4.2%5.245.38+0.1
▸ Career totals — MLB only (actual + projected)
Career— RAW959251822335092348097%5.522.8%10.5%12.3%3.6%4.954.47+5.6
/ 200 IP— RAW3735200862197903197%5.522.8%10.5%12.3%3.6%4.954.47+2.2
Career— MLE11711153323475502718295%4.623.4%11.6%11.9%3.5%4.894.51+4.8
/ 200 IP— MLE44422008802061023195%4.623.4%11.6%11.9%3.5%4.894.51+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%
ComponentRawPark ÷Level factor ×= MLE
K% /BF33.33%—×0.86028.67%
BB% (unintentional) /BF10.61%—×0.9009.55%
HR / BF /BF3.03%÷0.928×1.1003.59%

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%
ComponentRawPark ÷Level factor ×= MLE
K% /BF31.34%—×0.81025.38%
BB% (unintentional) /BF13.39%—×1.10014.73%
HR / BF /BF3.99%÷0.974×1.2004.91%

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%
ComponentRawPark ÷Level factor ×= MLE
K% /BF20.00%—×0.86017.20%
BB% (unintentional) /BF10.00%—×0.9009.00%
HR / BF /BF10.00%÷1.035×1.10010.63%

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%
ComponentRawPark ÷Level factor ×= MLE
K% /BF25.65%—×0.81020.77%
BB% (unintentional) /BF13.18%—×1.10014.49%
HR / BF /BF2.59%÷0.915×1.2003.40%

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.

Player162sIP/yrK%BB%HR/9ERA
OGILVIE CAREER PROJECTION2.97222.9%10.5%1.334.86
Rich DeLucia ('90-'99, 1 WAR*)3.17823.2%*10.5%*1.55*4.65*
Phil Hennigan ('69-'73, -0 WAR*)1.47020.9%*10.4%*1.50*4.95*
Jay Witasick ('07)3.77319.6%11.0%1.194.64
Steve Wilson ('88-'93, 0 WAR*)1.76921.6%*8.8%*1.25*4.84*
Bobby Ayala ('99)2.97221.3%9.7%1.114.78
Manny Parra ('15)3.17820.8%10.6%1.004.90