Nick Zwack

P Sacramento River Cats
Age 28 LHP 6'4" / 243 lbs AAA peak 0.2 · 2027
Overview
AAAPROSPECT
MLB%10%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202324AASF2416816.564.2924.9%8.8%—K 20.2% · BB 9.6% · FIP 5.41
202526MIX4 levels2121744.264.6021.9%8.4%—K 15.6% · BB 9.5% · FIP 6.15
202627AAASF420445.773.8627.8%13.1%—K 23.9% · BB 11.8% · FIP 4.10
2027PROJ28MLBSF3034.864.8621.3%10.7%-0.0
2028PROJ37% MLB29MLBSF100104.884.9421.2%10.7%-0.0
Next 2 projected WAR -0.1Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
Career WAR0.0 WAR median (P10 -0.1 / P90 0.4, comp-based) · star 0% · didn't stick 96%
CompsJohn Rheinecker (age 28) · Matt Whitehouse (age 28) · Chad Bell (age 28)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 109117vR 125
ERA4.86
FIP4.86
K%21.3%
BB%10.7%
K-BB%10.6%
Proj IP29
Value2027 · WAR
Runs saved vs league avg · 29 IP
K: -0.2 runs (Runs saved by strikeouts vs lg-avg K%)-0KBB: -0.7 runs (Runs saved by walk suppression vs lg-avg BB%)-1BBCONTACT: -1.3 runs (Runs saved on contact quality (HR suppression) vs lg)-1CONTACTSTAM: +1.2 runs (Replacement credit for innings volume)+1STAMTotal WAR: -0.11 (29 IP)-0.1WAR
-0.10.02728
Grades · Contract
Scouting Grades
K†5050

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

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)
202122ROK MLEFCL Mets5072613200%1.450.0%7.7%42.3%0.0%0.00-0.15—
202122ROK RAWFCL Mets5072613200%1.450.0%7.7%42.3%0.0%0.000.24—
202223MIX MLE2 levels242110642313234688%4.423.9%9.3%14.6%1.6%2.813.16—
202223MIX RAW2 levels242110642313234688%4.431.2%8.0%23.2%1.4%2.812.31—
202324AA MLERichmond Flying Squirrels24168136591321467%3.420.2%9.6%10.6%5.1%6.565.41—
202324AA RAWRichmond Flying Squirrels24168136591321467%3.424.9%8.8%16.2%3.8%6.564.29—
202526MIX MLE4 levels212174311682613100%3.515.6%9.5%6.1%5.8%4.266.15—
202526MIX MLE4 levels212174311682613100%3.515.6%9.5%6.1%5.8%4.266.15—
202526MIX RAW4 levels212174311682613100%3.521.9%8.4%13.5%4.2%4.264.60—
202627AAA MLESacramento River Cats42044198552650%1.023.9%11.8%12.1%2.8%5.774.10—
202627AAA MLESacramento River Cats42044198552650%1.023.9%11.8%12.1%2.8%5.774.10—
202627AAA RAWSacramento River Cats42044198552650%1.027.8%13.1%14.6%2.5%5.773.86—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202728MLBSF303133100%1.021.3%10.7%10.6%3.3%4.864.86-0.0
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202829MLB MLESF27028118251340%1.021.2%10.7%10.5%3.4%4.884.94-0.1
202829MLB CTXSF10010429510%1.021.2%10.7%10.5%3.4%4.884.94-0.0
▸ Career totals — MLB only (actual + projected)
Career— RAW10010439510%1.021.2%10.7%10.5%3.4%4.884.56-0.0
/ 200 IP— RAW190020084417597190%1.121.2%10.7%10.5%3.4%4.884.56-0.0
Career— MLE1165831113232831294950%2.721.4%9.8%11.7%3.7%4.484.56+0.1
/ 200 IP— MLE7537200850182833150%2.721.4%9.8%11.7%3.7%4.484.56+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.

2026 AAASacramento River Cats · 44 IPFIP 3.80 → 4.10 (+0.30)K% 27.8% → 23.9%
ComponentRawPark ÷Level factor ×= MLE
K% /BF27.78%—×0.86023.89%
BB% (unintentional) /BF13.13%—×0.90011.82%
HR / BF /BF2.53%÷1.000×1.1002.78%

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 100).

Result: FIP 3.80 → 4.10, 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).

2025 AARichmond Flying Squirrels · 32 IPFIP 2.31 → 2.81 (+0.49)K% 24.8% → 20.1%
ComponentRawPark ÷Level factor ×= MLE
K% /BF24.81%—×0.81020.09%
BB% (unintentional) /BF6.98%—×1.1007.67%
HR / BF /BF0.78%÷1.183×1.2000.79%

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 137).

Result: FIP 2.31 → 2.81, 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).

2025 AAASacramento River Cats · 14 IPFIP 9.35 → 10.19 (+0.85)K% 11.0% → 9.4%
ComponentRawPark ÷Level factor ×= MLE
K% /BF10.96%—×0.8609.42%
BB% (unintentional) /BF15.07%—×0.90013.56%
HR / BF /BF9.59%÷0.938×1.10011.25%

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 88).

Result: FIP 9.35 → 10.19, 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).

2025 A+Eugene Emeralds · 16 IPFIP 6.58 → 8.17 (+1.59)K% 17.6% → 13.6%
ComponentRawPark ÷Level factor ×= MLE
K% /BF17.65%—×0.77013.59%
BB% (unintentional) /BF7.35%—×1.1508.46%
HR / BF /BF7.35%÷0.980×1.2509.37%

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 96).

Result: FIP 6.58 → 8.17, 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).

2025 ROKACL Giants · 12 IPFIP 0.11 → 1.25 (+1.13)K% 39.0% → 26.5%
ComponentRawPark ÷Level factor ×= MLE
K% /BF39.02%—×0.68026.54%
BB% (unintentional) /BF2.44%—×1.2503.05%
HR / BF /BF0.00%÷1.128×1.4000.00%

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 126).

Result: FIP 0.11 → 1.25, 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 AARichmond Flying Squirrels · 81 IPFIP 4.21 → 5.41 (+1.19)K% 24.9% → 20.2%
ComponentRawPark ÷Level factor ×= MLE
K% /BF24.93%—×0.81020.19%
BB% (unintentional) /BF8.77%—×1.1009.64%
HR / BF /BF3.84%÷0.906×1.2005.08%

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 81).

Result: FIP 4.21 → 5.41, 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 A+Eugene Emeralds · 93 IPFIP 2.47 → 3.29 (+0.82)K% 29.1% → 22.4%
ComponentRawPark ÷Level factor ×= MLE
K% /BF29.11%—×0.77022.42%
BB% (unintentional) /BF8.63%—×1.1509.92%
HR / BF /BF1.35%÷1.120×1.2501.50%

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 124).

Result: FIP 2.47 → 3.29, 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 ASt. Lucie Mets · 13 IPFIP 0.75 → 2.24 (+1.49)K% 46.2% → 34.2%
ComponentRawPark ÷Level factor ×= MLE
K% /BF46.15%—×0.74034.15%
BB% (unintentional) /BF3.85%—×1.1804.54%
HR / BF /BF1.92%÷0.949×1.3002.63%

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 90).

Result: FIP 0.75 → 2.24, 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 PROJECTION0.32921.3%10.7%1.314.87
Sam Long ('25)1.14219.5%9.7%1.284.65
Yency Almonte ('24)1.14522.5%9.9%1.134.44
Valerio De Los Santos ('08)1.35118.7%11.5%1.304.57
Bill Wilson ('69-'73, -0 WAR*)1.35220.3%*11.5%*1.13*4.84*
Fred Lasher ('63-'71, -1 WAR*)1.05021.5%*11.9%*1.05*4.68*
Kevin Hickey ('81-'91, 0 WAR*)1.24717.7%*10.2%*1.10*4.27*