José Buttó

P San Francisco Giants
Age 29 RHP 6'0" / 208 lbs MLB peak 0.2 · 2027 ILInjured 60-Day (D60)
Overview
MLBRPIL-6040-MAN
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202426MIX2 levels38151182.743.6424.4%11.7%1.3K 23.3% · BB 11.3% · FIP 3.73
202527MIX3 levels582703.733.3920.7%10.2%1.0K 20.4% · BB 10.6% · FIP 3.55
202628MLBSF30222.5017.1031.2%25.0%-0.3
2027PROJ29MLBSF77414.224.4323.0%11.8%0.5
2028PROJ95% MLB30MLBSF66374.474.6422.3%12.1%0.3
2029PROJ95% MLB31MLBSF44234.714.8721.6%12.5%0.1
Last 3 seasons WAR 2.0  ·  Next 3 projected WAR 0.9Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
Skills · percentileStatcast 2025
FB Velo60
K%38
xwOBA vs36
CompsEdgar Alberto Garcia (age 29) · Carlos Frías (age 29) · Ross Ohlendorf (age 29)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 117109vR 101
ERA4.22
FIP4.43
K%23.0%
BB%11.8%
K-BB%11.2%
Proj IP41
Value2027 · WAR
Runs saved vs league avg · 41 IP
K: +0.2 runs (Runs saved by strikeouts vs lg-avg K%)+0KBB: -1.1 runs (Runs saved by walk suppression vs lg-avg BB%)-1BBCONTACT: -0.2 runs (Runs saved on contact quality (HR suppression) vs lg)-0CONTACTSTAM: +1.7 runs (Replacement credit for innings volume)+2STAMTotal WAR: +0.06 (41 IP)+0.1WAR
0.50.30.1272829
Statcast · Contract
Statcast Percentiles
FB Velo
p6095.2
Whiff%
p7228.8%
K%
p3820.4%
xwOBA vs
p360.328

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)
201719ROK MLEDSL Mets 215850199419053%3.314.0%5.7%8.4%0.0%1.442.63—
201719ROK RAWDSL Mets 215850199419053%3.320.6%4.5%16.1%0.0%1.442.00—
201820ROK MLEKingsport Mets663313331113100%5.415.8%10.3%5.5%3.2%1.934.80—
201820ROK RAWKingsport Mets663313331113100%5.423.3%8.3%15.0%2.3%1.933.41—
201921A MLEColumbia Fireflies272511246710931893%4.117.3%7.8%9.4%2.3%3.623.92—
201921A RAWColumbia Fireflies272511246710931893%4.123.3%6.6%16.7%1.7%3.622.91—
202123MIX MLE2 levels2020994061102417100%4.921.4%6.7%14.7%5.4%3.835.13—
202123MIX RAW2 levels2020994061102417100%4.927.1%5.9%21.2%4.2%3.833.84—
202224MIX MLE3 levels2926133563143461990%4.621.1%8.9%12.2%4.1%3.924.68+1.1
202224MIX RAW3 levels2926133563143461990%4.625.4%8.2%17.2%3.4%3.923.84+2.5
202325MIX MLE2 levels2826133593120722093%4.818.3%11.3%7.0%3.7%5.214.99+0.6
202325MIX RAW2 levels2826133593120722093%4.820.2%12.1%8.1%3.4%5.214.87+0.8
202426MIX MLE2 levels3815118479117561039%3.123.3%11.3%12.0%2.1%2.743.73+1.2
202426MIX MLE2 levels3815118479117561039%3.123.3%11.3%12.0%2.1%2.743.73+1.2
202426MIX RAW2 levels3815118479117561039%3.124.4%11.7%12.7%2.1%2.743.64+1.3
202527MIX MLE3 levels58270295613043%1.220.4%10.6%9.9%1.5%3.733.55+0.8
202527MIX MLE3 levels58270295613043%1.220.4%10.6%9.9%1.5%3.733.55+0.8
202527MIX RAW3 levels58270295613043%1.220.7%10.2%10.5%1.4%3.733.39+1.0
202628MLB MLESan Francisco Giants302165420%0.731.2%25.0%6.2%12.5%22.5010.49-0.1
202628MLB MLESan Francisco Giants302165420%0.731.2%25.0%6.2%12.5%22.5010.49-0.1
202628MLB RAWSan Francisco Giants302165420%0.731.2%25.0%6.2%12.5%22.5017.10-0.3
▸ Career totals (raw MLB only — as recorded)
MLB Career—9815189796185971715%1.923.2%12.2%11.1%2.1%3.763.85+1.6
▸ 2027 season — projected remainder (no 2027 stats recorded)
202729MLBSF774117340204100%5.923.0%11.8%11.2%2.5%4.224.43+0.5
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202830MLB MLESF663916537205100%6.522.3%12.1%10.2%2.7%4.474.64+0.3
202931MLB MLESF442410322133100%6.121.6%12.5%9.1%3.0%4.714.87+0.1
202830MLB CTXSF663715635194100%6.222.3%12.1%10.2%2.7%4.474.64+0.3
202931MLB CTXSF44239721123100%5.821.6%12.5%9.1%3.0%4.714.87+0.1
▸ Career totals — MLB only (actual + projected)
Career— RAW1082524910502411282423%2.322.9%12.2%10.7%2.3%3.963.97+1.7
/ 200 IP— RAW87202008431931031923%2.322.9%12.2%10.7%2.3%3.963.97+1.4
Career— MLE22412875031516202959957%3.319.7%9.4%10.3%3.1%3.694.34+4.0
/ 200 IP— MLE6034200841166792657%3.319.7%9.4%10.3%3.1%3.694.34+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.

2024 AAASyracuse Mets · 44 IPFIP 3.78 → 3.95 (+0.17)K% 20.5% → 17.7%
ComponentRawPark ÷Level factor ×= MLE
K% /BF20.54%—×0.86017.66%
BB% (unintentional) /BF9.73%—×0.9008.76%
HR / BF /BF2.16%÷1.059×1.1002.25%

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 112).

Result: FIP 3.78 → 3.95, 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 AAASyracuse Mets · 91 IPFIP 5.18 → 5.48 (+0.30)K% 19.8% → 17.0%
ComponentRawPark ÷Level factor ×= MLE
K% /BF19.81%—×0.86017.03%
BB% (unintentional) /BF11.84%—×0.90010.65%
HR / BF /BF4.11%÷1.003×1.1004.50%

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 101).

Result: FIP 5.18 → 5.48, 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 AABinghamton Rumble Ponies · 92 IPFIP 3.86 → 5.06 (+1.21)K% 27.2% → 22.0%
ComponentRawPark ÷Level factor ×= MLE
K% /BF27.20%—×0.81022.04%
BB% (unintentional) /BF8.82%—×1.1009.70%
HR / BF /BF3.53%÷0.895×1.2004.73%

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 79).

Result: FIP 3.86 → 5.06, 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 AAASyracuse Mets · 37 IPFIP 3.28 → 3.60 (+0.33)K% 21.0% → 18.5%
ComponentRawPark ÷Level factor ×= MLE
K% /BF20.98%—×0.88018.46%
BB% (unintentional) /BF6.29%—×1.0506.61%
HR / BF /BF2.10%÷1.033×1.1002.23%

Factors used: pitcher AAA level factors — K ×0.88, BB ×1.05, 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 107).

Result: FIP 3.28 → 3.60, 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).

2021 A+Brooklyn Cyclones · 58 IPFIP 4.30 → 5.80 (+1.50)K% 25.1% → 19.3%
ComponentRawPark ÷Level factor ×= MLE
K% /BF25.10%—×0.77019.33%
BB% (unintentional) /BF6.28%—×1.1507.22%
HR / BF /BF4.60%÷0.925×1.2506.22%

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 85).

Result: FIP 4.30 → 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).

2021 AABinghamton Rumble Ponies · 40 IPFIP 3.23 → 4.18 (+0.96)K% 29.9% → 24.3%
ComponentRawPark ÷Level factor ×= MLE
K% /BF29.94%—×0.81024.25%
BB% (unintentional) /BF5.39%—×1.1005.93%
HR / BF /BF3.59%÷0.995×1.2004.34%

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 99).

Result: FIP 3.23 → 4.18, 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).

2019 AColumbia Fireflies · 112 IPFIP 2.91 → 3.92 (+1.01)K% 23.3% → 17.3%
ComponentRawPark ÷Level factor ×= MLE
K% /BF23.34%—×0.74017.27%
BB% (unintentional) /BF6.64%—×1.1807.83%
HR / BF /BF1.71%÷0.949×1.3002.35%

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 2.91 → 3.92, 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).

2018 ROKKingsport Mets · 33 IPFIP 3.42 → 4.80 (+1.39)K% 23.3% → 15.8%
ComponentRawPark ÷Level factor ×= MLE
K% /BF23.31%—×0.68015.85%
BB% (unintentional) /BF8.27%—×1.25010.34%
HR / BF /BF2.26%÷1.000×1.4003.16%

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 100).

Result: FIP 3.42 → 4.80, 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).

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 PROJECTION1.55022.9%12.3%0.914.00
Dave Geisel ('78-'85, 2 WAR*)1.04223.5%*10.6%*0.84*4.12*
Daniel Bard ('23)2.35724.2%12.3%0.853.74
David Aardsma ('15)1.74823.1%12.4%1.094.27
Tyler Matzek ('25)1.55822.2%11.7%0.653.73
Horacio Pina ('68-'78, 2 WAR*)2.26220.7%*11.2%*0.84*4.01*
Bill Kelso ('64-'68, 1 WAR*)1.06723.1%*11.6%*1.09*4.19*