John Klein

P Buffalo Bisons
Age 25 RHP 6'5" / 225 lbs AAA Svc 0.0 · Ctrl thru 2032 peak 0.6 · 2028
Overview
AAARP40-MANROOKIEPre-ArbFA 2033
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202422A+MIN22201004.573.6120.4%8.6%—K 15.7% · BB 9.9% · FIP 4.20
202523MIX2 levels31151063.982.5927.6%8.0%—K 22.7% · BB 8.2% · FIP 3.19
202624MIX2 levels3619955.995.2223.4%13.1%0.2K 20.4% · BB 11.5% · FIP 5.39
2027PROJ25MLBTOR88484.934.9321.1%10.9%0.3
2028PROJ80% MLB26MLBTOR1111684.854.8421.4%10.6%0.4
2029PROJ86% MLB27MLBTOR1212694.834.8421.4%10.4%0.4
Last 3 seasons WAR 0.2  ·  Next 3 projected WAR 1.1Projected rows: MLB playing time only, park and league context applied.
ContractESTIMATED
Control thru2032Service0.052First FA2033
2027Pre-Arb$0.8M2028Pre-Arb$0.8M2029Pre-Arb$0.8M2030Arb-1$2M2031Arb-2$2M2032Arb-3$2M
Career WAR0.0 WAR median (P10 -0.4 / P90 4.7, comp-based) · star 0% · didn't stick 82%
CompsAlfredo Figaro (age 25) · Carlos Torres (age 26) · Jeff Niemann (age 25)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 127119vR 111
ERA4.93
FIP4.93
K%21.1%
BB%10.9%
K-BB%10.2%
Proj IP70
Value2027 · WAR
Runs saved vs league avg · 70 IP
K: -0.6 runs (Runs saved by strikeouts vs lg-avg K%)-1KBB: -1.9 runs (Runs saved by walk suppression vs lg-avg BB%)-2BBCONTACT: -3.4 runs (Runs saved on contact quality (HR suppression) vs lg)-3CONTACTSTAM: +4.5 runs (Replacement credit for innings volume)+5STAMTotal WAR: -0.14 (70 IP)-0.1WAR
0.00.51.00.30.40.40.40.30.127282930313233343536
━ projected WAR━ paid WAR ($/8M) surplus deficit+$8M ctrl surplus
Contract
Contract ESTIMATED · service-time + WAR-based estimator (needs verification)
Status   Pre-Arb
MLB Debut   2026
Service   0.052 yrs.days
Team Control Through   2032
First FA Year   2033
YearStatusSalary Proj WAR Value Surplus
2027Pre-Arb$0.8M+0.3$1M+$0.3M
2028Pre-Arb$0.8M+0.4$1M+$0.8M
2029Pre-Arb$0.8M+0.4$1M+$0.7M
2030Arb-1$2M+0.4$1M+$0.2M
2031Arb-2$2M+0.3$0.9M+$0.0M (cut)
2032Arb-3$2M+0.1$0.3M+$0.0M (cut)
Totals $4M $6M +$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)
202220ROK MLEFCL Twins20292100%1.022.2%11.1%11.1%0.0%0.002.63—
202220ROK RAWFCL Twins20292100%1.022.2%11.1%11.1%0.0%0.002.60—
202321MIX MLE3 levels13135825561234100%4.517.4%11.4%6.0%2.5%4.174.47—
202321MIX RAW3 levels13135825561234100%4.523.9%9.0%14.9%1.6%4.173.08—
202422A+ MLECedar Rapids Kernels22201004419038991%4.615.7%9.9%5.8%2.1%4.574.20—
202422A+ MLECedar Rapids Kernels22201004419038991%4.615.7%9.9%5.8%2.1%4.574.20—
202422A+ RAWCedar Rapids Kernels22201004419038991%4.620.4%8.6%11.8%2.0%4.573.61—
202523MIX MLE2 levels311510646412837748%3.422.7%8.2%14.5%1.8%3.983.19—
202523MIX MLE2 levels311510646412837748%3.422.7%8.2%14.5%1.8%3.983.19—
202523MIX RAW2 levels311510646412837748%3.427.6%8.0%19.6%1.5%3.982.59—
202624MIX MLE2 levels361995435102571853%2.620.4%11.5%8.9%4.7%5.995.39+0.0
202624MIX MLE2 levels361995435102571853%2.620.4%11.5%8.9%4.7%5.995.39+0.0
202624MIX RAW2 levels361995435102571853%2.623.4%13.1%10.3%4.1%5.995.22+0.2
▸ Career totals (raw MLB only — as recorded)
MLB Career—408357610%2.120.0%17.1%2.9%2.9%2.165.14-0.1
▸ 2027 season — projected remainder (no 2027 stats recorded)
202725MLBTOR884820343227100%6.021.1%10.9%10.2%3.4%4.934.93+0.3
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202826MLB MLETOR141485359773812100%6.121.4%10.6%10.8%3.3%4.854.84+0.5
202927MLB MLETOR131381340733511100%6.221.4%10.4%11.0%3.4%4.834.84+0.5
203028MLB MLETOR131377327703411100%6.021.3%10.4%10.9%3.4%4.854.89+0.5
203129MLB MLETOR121272302643211100%6.021.1%10.6%10.5%3.6%4.945.01+0.3
203230MLB MLETOR111164272563010100%5.920.7%10.9%9.8%3.8%5.095.18+0.2
202826MLB CTXTOR111168287613010100%6.221.4%10.6%10.8%3.3%4.854.84+0.4
202927MLB CTXTOR121269291623010100%5.821.4%10.4%11.0%3.4%4.834.84+0.4
203028MLB CTXTOR121269291623010100%5.821.3%10.4%10.9%3.4%4.854.89+0.4
203129MLB CTXTOR111165274582910100%5.921.1%10.6%10.5%3.6%4.945.01+0.3
203230MLB CTXTOR101060253532810100%6.020.7%10.9%9.8%3.8%5.095.18+0.1
▸ Career totals — MLB only (actual + projected)
Career— RAW595533914333031545093%5.821.2%10.7%10.4%3.5%4.844.58+3.2
/ 200 IP— RAW3533200844179912993%5.721.2%10.7%10.4%3.5%4.844.58+1.9
Career— MLE1046736216043101624464%3.519.3%10.1%9.2%2.8%4.684.27+2.0
/ 200 IP— MLE5837200887171892564%3.519.3%10.1%9.2%2.8%4.684.27+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 AAABuffalo Bisons · 86 IPFIP 5.04 → 5.39 (+0.35)K% 23.8% → 20.4%
ComponentRawPark ÷Level factor ×= MLE
K% /BF23.75%—×0.86020.42%
BB% (unintentional) /BF12.75%—×0.90011.47%
HR / BF /BF4.25%÷1.000×1.1004.68%

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 5.04 → 5.39, 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 AAWichita Wind Surge · 81 IPFIP 2.61 → 3.35 (+0.73)K% 27.4% → 22.2%
ComponentRawPark ÷Level factor ×= MLE
K% /BF27.38%—×0.81022.18%
BB% (unintentional) /BF6.92%—×1.1007.61%
HR / BF /BF1.73%÷0.986×1.2002.10%

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 97).

Result: FIP 2.61 → 3.35, 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 AAASt. Paul Saints · 26 IPFIP 2.59 → 2.73 (+0.14)K% 28.2% → 24.3%
ComponentRawPark ÷Level factor ×= MLE
K% /BF28.21%—×0.86024.26%
BB% (unintentional) /BF11.11%—×0.90010.00%
HR / BF /BF0.85%÷1.253×1.1000.75%

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 151).

Result: FIP 2.59 → 2.73, 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).

2024 A+Cedar Rapids Kernels · 100 IPFIP 3.59 → 4.20 (+0.62)K% 20.4% → 15.7%
ComponentRawPark ÷Level factor ×= MLE
K% /BF20.41%—×0.77015.71%
BB% (unintentional) /BF8.62%—×1.1509.91%
HR / BF /BF2.04%÷1.191×1.2502.14%

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 138).

Result: FIP 3.59 → 4.20, 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 AFort Myers Mighty Mussels · 30 IPFIP 2.82 → 3.76 (+0.93)K% 24.6% → 18.2%
ComponentRawPark ÷Level factor ×= MLE
K% /BF24.59%—×0.74018.20%
BB% (unintentional) /BF10.66%—×1.18012.57%
HR / BF /BF0.82%÷0.976×1.3001.09%

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 95).

Result: FIP 2.82 → 3.76, 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 Twins · 23 IPFIP 3.56 → 5.26 (+1.70)K% 24.3% → 16.5%
ComponentRawPark ÷Level factor ×= MLE
K% /BF24.32%—×0.68016.54%
BB% (unintentional) /BF8.11%—×1.25010.14%
HR / BF /BF2.70%÷0.913×1.4004.14%

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 83).

Result: FIP 3.56 → 5.26, 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+Cedar Rapids Kernels · 5 IPFIP 2.14 → 2.58 (+0.44)K% 18.2% → 14.0%
ComponentRawPark ÷Level factor ×= MLE
K% /BF18.18%—×0.77014.00%
BB% (unintentional) /BF4.55%—×1.1505.23%
HR / BF /BF0.00%÷1.134×1.2500.00%

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 127).

Result: FIP 2.14 → 2.58, 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 PROJECTION2.37621.2%10.7%1.344.86
Phil Hennigan ('69-'73, -0 WAR*)1.47020.9%*10.4%*1.50*4.95*
Bill Scherrer ('82-'88, 1 WAR*)1.66220.7%*10.2%*1.19*4.44*
Jay Witasick ('07)3.77319.6%11.0%1.194.64
Josias Manzanillo ('04)1.75720.0%10.2%1.214.71
Rich DeLucia ('90-'99, 1 WAR*)3.17823.2%*10.5%*1.55*4.65*
Josh Lindblom ('21)1.05222.1%9.6%1.254.78