Jaycob Deese

P Altoona Curve
Age 27 RHP 6'1" / 195 lbs AA
Overview
AAPROSPECT
MLB%2%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202424MIX2 levels352516.315.1613.4%7.4%—K 11.4% · BB 7.9% · FIP 5.77
202525A+PIT330393.722.7418.0%6.6%—K 13.8% · BB 7.6% · FIP 3.28
202626MIX2 levels390627.154.6918.4%10.1%—K 15.0% · BB 11.2% · FIP 5.17
2027PROJ27MLBPIT1015.095.0915.8%10.1%-0.0
2028PROJ38% MLB28MLBPIT100105.065.0916.4%10.1%-0.1
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 0.0 / P90 0.0, comp-based) · star 0% · didn't stick 97%
CompsJustin Lehr (age 27) · Francisco Rodriguez (age 27) · Luis Mateo (age 27)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 130122vR 114
ERA5.09
FIP5.09
K%15.8%
BB%10.1%
K-BB%5.8%
Proj IP36
Value2027 · WAR
Runs saved vs league avg · 36 IP
K: -1.8 runs (Runs saved by strikeouts vs lg-avg K%)-2KBB: -0.6 runs (Runs saved by walk suppression vs lg-avg BB%)-1BBCONTACT: -1.2 runs (Runs saved on contact quality (HR suppression) vs lg)-1CONTACTSTAM: +1.5 runs (Replacement credit for innings volume)+1STAMTotal WAR: -0.23 (36 IP)-0.2WAR
-0.2-0.12728
Grades · Contract
Scouting Grades
K†3040

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)
202222ROK MLEFCL Pirates304155100%1.333.3%6.7%26.7%0.0%0.001.13—
202222ROK RAWFCL Pirates304155100%1.333.3%6.7%26.7%0.0%0.001.35—
202323A+ MLEGreensboro Grasshoppers323682876517119%2.117.4%6.8%10.6%4.0%5.294.68—
202323A+ RAWGreensboro Grasshoppers323682876517119%2.122.6%5.9%16.7%3.8%5.294.04—
202424MIX MLE2 levels35251231311796%1.511.4%7.9%3.5%4.8%6.315.77—
202424MIX MLE2 levels35251231311796%1.511.4%7.9%3.5%4.8%6.315.77—
202424MIX RAW2 levels35251231311796%1.513.4%7.4%6.1%3.9%6.315.16—
202525A+ MLEGreensboro Grasshoppers33039167301110%1.213.8%7.6%6.3%0.7%3.723.28—
202525A+ MLEGreensboro Grasshoppers33039167301110%1.213.8%7.6%6.3%0.7%3.723.28—
202525A+ RAWGreensboro Grasshoppers33039167301110%1.218.0%6.6%11.4%0.6%3.722.74—
202626MIX MLE2 levels39062288532990%1.615.0%11.2%3.8%3.5%7.155.17—
202626MIX MLE2 levels39062288532990%1.615.0%11.2%3.8%3.5%7.155.17—
202626MIX RAW2 levels39062288532990%1.618.4%10.1%8.3%3.1%7.154.69—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202727MLBPIT10141000%1.015.8%10.1%5.8%3.0%5.095.09-0.0
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202828MLB MLEPIT25027112181140%1.116.4%10.1%6.3%3.1%5.065.09-0.2
202828MLB CTXPIT10010427410%1.016.4%10.1%6.3%3.1%5.065.09-0.1
▸ Career totals — MLB only (actual + projected)
Career— RAW10010427410%1.016.4%10.1%6.3%3.1%5.064.71-0.0
/ 200 IP— RAW190020084414080200%1.116.4%10.1%6.3%3.1%5.064.71-0.4
Career— MLE142522498814884344%1.615.0%8.5%6.5%3.4%5.674.78-0.2
/ 200 IP— MLE127420088313275304%1.615.0%8.5%6.5%3.4%5.674.78-1.3

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 AAAltoona Curve · 60 IPFIP 4.42 → 5.17 (+0.75)K% 18.5% → 15.0%
ComponentRawPark ÷Level factor ×= MLE
K% /BF18.55%—×0.81015.02%
BB% (unintentional) /BF10.18%—×1.10011.20%
HR / BF /BF2.91%÷1.000×1.2003.49%

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 100).

Result: FIP 4.42 → 5.17, 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 A+Greensboro Grasshoppers · 39 IPFIP 2.75 → 3.28 (+0.54)K% 18.0% → 13.8%
ComponentRawPark ÷Level factor ×= MLE
K% /BF17.96%—×0.77013.83%
BB% (unintentional) /BF6.59%—×1.1507.57%
HR / BF /BF0.60%÷1.048×1.2500.71%

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 110).

Result: FIP 2.75 → 3.28, 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+Greensboro Grasshoppers · 42 IPFIP 5.04 → 5.77 (+0.72)K% 14.8% → 11.4%
ComponentRawPark ÷Level factor ×= MLE
K% /BF14.81%—×0.77011.41%
BB% (unintentional) /BF6.88%—×1.1507.91%
HR / BF /BF4.23%÷1.106×1.2504.79%

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 121).

Result: FIP 5.04 → 5.77, 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 AAAltoona Curve · 9 IPFIP 5.01 → 5.80 (+0.79)K% 7.1% → 5.8%
ComponentRawPark ÷Level factor ×= MLE
K% /BF7.14%—×0.8105.79%
BB% (unintentional) /BF9.52%—×1.10010.48%
HR / BF /BF2.38%÷0.844×1.2003.39%

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 69).

Result: FIP 5.01 → 5.80, 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+Greensboro Grasshoppers · 68 IPFIP 4.04 → 4.68 (+0.64)K% 22.6% → 17.4%
ComponentRawPark ÷Level factor ×= MLE
K% /BF22.65%—×0.77017.44%
BB% (unintentional) /BF5.92%—×1.1506.81%
HR / BF /BF3.83%÷1.202×1.2503.98%

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 140).

Result: FIP 4.04 → 4.68, 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 PROJECTION0.33116.1%10.1%1.195.08
Brian Stokes ('10)1.05214.5%10.1%1.225.27
Jeff Manship ('16)1.13216.5%9.3%1.054.82
Vic Darensbourg ('05)1.55017.0%9.3%1.014.96
Kevin Hickey ('81-'91, 0 WAR*)1.24717.7%*10.2%*1.10*4.27*
Bob Macdonald ('90-'96, 1 WAR*)1.25918.3%*9.8%*1.20*4.32*
Daryl Patterson ('68-'74, -1 WAR*)1.24618.3%*11.2%*1.27*5.03*