Boston Bateman

P Frederick Keys
Age 21 LHP 6'8" / 240 lbs A+ Svc 0.0 · Ctrl thru 2034 peak 1.2 · 2030
Overview
A+PROSPECTMiLBFA 2035
OGV OFP40OGV rank#151ETA2028MLB%0%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202519MIX2 levels2020874.142.5524.7%10.0%—K 18.4% · BB 11.7% · FIP 3.38
202620A+BAL2421863.652.8131.6%13.0%—K 24.3% · BB 14.9% · FIP 3.86
2027PROJ21MLBBAL——04.614.6123.4%13.6%—
2028PROJ49% MLB22MLBBAL77354.484.3724.3%11.9%0.4
2029PROJ73% MLB23MLBBAL1010524.294.1724.9%10.7%0.8
Next 3 projected WAR 1.2Projected rows: MLB playing time only, park and league context applied.
ContractESTIMATED
Control thru2034Service0.0First FA2035
2027MiLB2028MiLB2029Pre-Arb$0.8M2030Pre-Arb$0.8M2031Pre-Arb$0.9M2032Arb-1$3M2033Arb-2$4M2034Arb-3$5M
Career WAR0.1 WAR median (P10 -0.3 / P90 18, comp-based) · star 4% · didn't stick 74%
CompsCaden Grice (age 22) · Sam Weatherly (age 22) · John Beller (age 22)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 105113vR 121
ERA4.61
FIP4.61
K%23.4%
BB%13.6%
K-BB%9.8%
Proj IP61
Value2027 · WAR
Runs saved vs league avg · 61 IP
K: +0.5 runs (Runs saved by strikeouts vs lg-avg K%)+1KBB: -3.1 runs (Runs saved by walk suppression vs lg-avg BB%)-3BBCONTACT: -0.3 runs (Runs saved on contact quality (HR suppression) vs lg)-0CONTACTSTAM: +2.7 runs (Replacement credit for innings volume)+3STAMTotal WAR: -0.03 (61 IP)-0.0WAR
0.00.81.60.00.40.81.01.11.11.11.027282930313233343536
━ projected WAR━ paid WAR ($/8M) surplus deficit━ post-control+$37M ctrl surplus
Contract
Contract ESTIMATED · service-time + WAR-based estimator (needs verification)
Status   MiLB
MLB Debut   2029
Service   0 yrs (est)
Team Control Through   2034
First FA Year   2035
YearStatusSalary Proj WAR Value Surplus
2027MiLBstill in minors · estimated debut 2029
2028MiLBstill in minors · estimated debut 2029
2029Pre-Arb$0.8M+0.8$3M+$2M
2030Pre-Arb$0.8M+1.0$6M+$6M
2031Pre-Arb$0.9M+1.1$6M+$6M
2032Arb-1$3M+1.1$6M+$4M
2033Arb-2$4M+1.1$6M+$3M
2034Arb-3$5M+1.0$5M+$2M
Totals $15M $32M +$24M

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)
202519MIX MLE2 levels20208738094382100%4.318.4%11.7%6.7%0.6%4.143.38—
202519MIX MLE2 levels20208738094382100%4.318.4%11.7%6.7%0.6%4.143.38—
202519MIX RAW2 levels20208738094382100%4.324.7%10.0%14.7%0.5%4.142.55—
202620A+ MLEFrederick Keys24218637011748588%3.624.3%14.9%9.4%1.7%3.653.86—
202620A+ MLEFrederick Keys24218637011748588%3.624.3%14.9%9.4%1.7%3.653.86—
202620A+ RAWFrederick Keys24218637011748588%3.631.6%13.0%18.6%1.4%3.652.81—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202721MLBBAL——0——————23.4%13.6%9.8%2.5%4.614.61—
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202822MLB MLEBAL14147129973358100%5.024.3%11.9%12.4%2.5%4.424.31+0.9
202923MLB MLEBAL13137129974327100%5.424.9%10.7%14.2%2.5%4.234.11+1.1
203024MLB MLEBAL13137129975307100%5.425.3%9.9%15.4%2.5%4.083.97+1.2
203125MLB MLEBAL12126828773277100%5.725.6%9.5%16.1%2.5%3.973.89+1.2
203226MLB MLEBAL11116828974277100%6.225.8%9.4%16.4%2.5%3.913.87+1.3
203327MLB MLEBAL11116728273277100%6.125.8%9.5%16.3%2.5%3.913.90+1.2
203428MLB MLEBAL11116426969267100%5.825.7%9.7%16.0%2.6%3.963.99+1.1
203529MLB MLEBAL10105925064257100%5.925.4%9.9%15.5%2.8%4.064.12+0.9
203630MLB MLEBAL10105924967237100%5.927.1%9.4%17.7%3.0%4.044.03+1.0
203731MLB MLEBAL995222059217100%5.826.7%9.7%16.9%3.2%4.154.23+0.7
203832MLB MLEBAL884519150197100%5.726.2%10.1%16.1%3.5%4.334.46+0.5
203933MLB MLEBAL663916442176100%6.525.7%10.6%15.1%3.7%4.564.71+0.3
202822MLB CTXBAL773514836184100%5.024.3%11.9%12.4%2.6%4.484.37+0.4
202923MLB CTXBAL10105222055236100%5.224.9%10.7%14.2%2.6%4.294.17+0.8
203024MLB CTXBAL11115924963257100%5.425.3%9.9%15.4%2.6%4.144.03+1.0
203125MLB CTXBAL10106025365247100%6.025.6%9.5%16.1%2.6%4.033.95+1.1
203226MLB CTXBAL10106226268257100%6.225.8%9.4%16.4%2.6%3.973.93+1.1
203327MLB CTXBAL10106226267257100%6.225.8%9.5%16.3%2.7%3.973.96+1.1
203428MLB CTXBAL10106025365247100%6.025.7%9.7%16.0%2.8%4.034.06+1.0
203529MLB CTXBAL995623660237100%6.225.4%9.9%15.5%2.9%4.134.19+0.8
203630MLB CTXBAL995623664227100%6.227.1%9.4%17.7%3.1%4.114.10+0.9
203731MLB CTXBAL885021156217100%6.226.7%9.7%16.9%3.4%4.234.31+0.7
203832MLB CTXBAL774318248187100%6.126.2%10.1%16.1%3.6%4.424.55+0.5
203933MLB CTXBAL663715640176100%6.225.7%10.6%15.1%3.9%4.654.80+0.3
▸ Career totals — MLB only (actual + projected)
Career— RAW108108631266568626478100%5.825.7%9.9%15.8%2.9%4.173.78+12.3
/ 200 IP— RAW34342008442178425100%5.825.7%9.9%15.8%2.9%4.173.78+3.9
Career— MLE4441173750160100993%3.921.3%13.3%8.0%1.2%3.893.62+11.3
/ 200 IP— MLE51472008651851151093%3.921.3%13.3%8.0%1.2%3.893.62+3.1

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 A+Frederick Keys · 86 IPFIP 2.81 → 3.86 (+1.05)K% 31.6% → 24.3%
ComponentRawPark ÷Level factor ×= MLE
K% /BF31.62%—×0.77024.35%
BB% (unintentional) /BF12.97%—×1.15014.92%
HR / BF /BF1.35%÷1.000×1.2501.69%

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 100).

Result: FIP 2.81 → 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).

2025 ADelmarva Shorebirds · 76 IPFIP 2.21 → 3.03 (+0.81)K% 25.0% → 18.5%
ComponentRawPark ÷Level factor ×= MLE
K% /BF25.00%—×0.74018.50%
BB% (unintentional) /BF8.33%—×1.1809.83%
HR / BF /BF0.31%÷0.899×1.3000.45%

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 80).

Result: FIP 2.21 → 3.03, 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+Aberdeen IronBirds · 11 IPFIP 4.61 → 5.45 (+0.84)K% 23.2% → 17.9%
ComponentRawPark ÷Level factor ×= MLE
K% /BF23.21%—×0.77017.88%
BB% (unintentional) /BF19.64%—×1.15022.59%
HR / BF /BF1.79%÷1.229×1.2501.82%

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 146).

Result: FIP 4.61 → 5.45, 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 PROJECTION4.06125.5%10.3%1.064.15
Jason Grilli ('17)3.45323.4%9.8%1.004.22
Andrew Miller ('21)4.15927.1%10.6%0.874.03
Brian Fuentes ('12)3.15624.4%9.8%0.943.62
Tim Stoddard ('75-'89, 4 WAR*)3.66626.2%*11.2%*1.14*4.24*
Rob Murphy ('85-'95, 6 WAR*)3.16925.2%*9.2%*1.07*3.94*
Jeff Parrett ('86-'96, 6 WAR*)3.67224.8%*11.0%*1.02*4.07*