Zach Willeman

P Chattanooga Lookouts
Age 31 RHP 6'2" / 219 lbs AA
Overview
AAPROSPECT
ETA2029MLB%2%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202226MIX2 levels500605.855.0223.4%13.8%—K 20.0% · BB 14.6% · FIP 5.71
202327AAMIA140187.136.5518.8%16.2%—K 15.2% · BB 17.9% · FIP 7.10
202529AACIN1211584.344.0513.4%9.3%—K 10.9% · BB 10.3% · FIP 4.53
2027PROJ31MLBCIN620655.705.7010.2%12.0%-0.8
2028PROJ31% MLB32MLBCIN180195.705.7911.1%12.1%-0.3
2029PROJ51% MLB33MLBCIN270285.795.9311.5%12.4%-0.4
Next 3 projected WAR -1.5Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
Scouting grades · 20-80
Stuff30Control50Command30
CompsRudy Gonzalez (age 34) · Marco Carrillo (age 30) · Luis Angel Daniel (age 31)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 141133vR 125
ERA5.70
FIP5.70
K%10.2%
BB%12.0%
K-BB%-1.8%
Proj IP65
Value2027 · WAR
Runs saved vs league avg · 65 IP
K: -6.6 runs (Runs saved by strikeouts vs lg-avg K%)-7KBB: -2.8 runs (Runs saved by walk suppression vs lg-avg BB%)-3BBCONTACT: -1.6 runs (Runs saved on contact quality (HR suppression) vs lg)-2CONTACTSTAM: +3.4 runs (Replacement credit for innings volume)+3STAMTotal WAR: -0.79 (65 IP)-0.8WAR
-0.8-0.32728
Grades · Contract
Scouting Grades
STUF3030
CTRL5050
CMD3030
K†3030

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 industry-standard fWAR.

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)
201822MIX MLE2 levels811970248012%2.434.3%11.4%22.9%0.0%1.421.65—
201822MIX RAW2 levels811970248012%2.434.3%11.4%22.9%0.0%1.421.84—
201923A MLEGreat Lakes Loons216803785548829%3.810.8%15.0%-4.2%2.7%5.385.57—
201923A RAWGreat Lakes Loons216803785548829%3.814.6%12.7%1.9%2.1%5.384.82—
202125AA MLETulsa Drillers33048209592340%1.422.9%12.1%10.8%2.5%3.784.05—
202125AA RAWTulsa Drillers33048209592340%1.428.2%11.0%17.2%1.9%3.783.16—
202226MIX MLE2 levels500602696337100%1.220.0%14.6%5.4%4.5%5.855.71—
202226MIX RAW2 levels500602696337100%1.223.4%13.8%9.7%3.7%5.855.02—
202327AA MLEPensacola Blue Wahoos1401880151340%1.315.2%17.9%-2.7%5.5%7.137.10—
202327AA RAWPensacola Blue Wahoos1401880151340%1.318.8%16.2%2.5%5.0%7.136.55—
202529AA MLEChattanooga Lookouts1211582463323492%4.810.9%10.3%0.6%1.9%4.344.53—
202529AA MLEChattanooga Lookouts1211582463323492%4.810.9%10.3%0.6%1.9%4.344.53—
202529AA RAWChattanooga Lookouts1211582463323492%4.813.4%9.3%4.1%1.6%4.344.05—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202731MLBCIN62065274283380%1.010.2%12.0%-1.8%2.9%5.705.70-0.8
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202832MLB MLECIN57060254283180%1.111.1%12.1%-1.0%3.1%5.705.79-0.8
202933MLB MLECIN53055233272980%1.011.5%12.4%-0.8%3.4%5.795.93-0.8
202832MLB CTXCIN180198091020%1.111.1%12.1%-1.0%3.1%5.705.79-0.3
202933MLB CTXCIN27028118141540%1.011.5%12.4%-0.8%3.4%5.795.93-0.4
▸ Career totals — MLB only (actual + projected)
Career— RAW45047199232470%1.011.4%12.3%-0.9%3.3%5.755.49-0.5
/ 200 IP— RAW190020084497102300%1.011.4%12.3%-0.9%3.3%5.755.49-2.2
Career— MLE1381828312522051693613%2.016.4%13.5%2.9%2.9%4.845.02-1.7
/ 200 IP— MLE98132008861451192613%2.016.4%13.5%2.9%2.9%4.845.02-3.0

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.

Player162sIP/yrK%BB%HR/9ERA
OGILVIE CAREER PROJECTION0.96010.9%12.2%1.205.73
Luther Hackman ('03)1.17113.3%10.9%1.105.09
Brian Stokes ('10)1.05214.5%10.1%1.225.27
Rodney Myers ('04)1.26015.0%10.3%1.055.07
Russ Swan ('89-'94, -2 WAR*)1.38912.3%*9.9%*1.13*5.09*
Larry Bearnarth ('63-'71, -3 WAR*)1.68111.0%*10.7%*1.16*5.02*
Daryl Patterson ('68-'74, -1 WAR*)1.24618.3%*11.2%*1.27*5.03*