Sean Guenther

P Toledo Mud Hens
Age 31 LHP 5'11" / 194 lbs AAA
Overview
AAARP
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202428MIX2 levels562732.602.7621.7%5.8%1.6K 19.2% · BB 5.3% · FIP 3.18
202529MIX4 levels162185.403.3219.5%9.1%0.3K 19.5% · BB 9.1% · FIP 3.32
202630AAADET123175.403.7621.4%7.1%—K 18.4% · BB 6.4% · FIP 4.08
2027PROJ31MLBDET500524.344.5716.7%7.6%-0.0
2028PROJ37% MLB32MLBDET170184.614.8016.6%8.2%-0.1
2029PROJ55% MLB33MLBDET240254.865.0516.2%8.7%-0.1
Last 3 seasons WAR 1.8  ·  Next 3 projected WAR -0.2Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
Scouting grades · 20-80
Stuff41Control52Command38FB velo40
CompsRaul Valdes (age 32) · Andrew Barbosa (age 29) · Jeremy Bleich (age 31)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 104112vR 120
ERA4.34
FIP4.57
K%16.7%
BB%7.6%
K-BB%9.0%
Proj IP52
Value2027 · WAR
Runs saved vs league avg · 52 IP
K: -1.9 runs (Runs saved by strikeouts vs lg-avg K%)-2KBB: +0.5 runs (Runs saved by walk suppression vs lg-avg BB%)+0BBCONTACT: -0.9 runs (Runs saved on contact quality (HR suppression) vs lg)-1CONTACTSTAM: +2.1 runs (Replacement credit for innings volume)+2STAMTotal WAR: -0.01 (52 IP)-0.0WAR
0.0-0.1-0.1272829
Grades · Arsenal · Contract
Scouting Grades
STUF4040
CTRL5050
CMD4040
K†4040
SL+1.3 (34%)
SI (41%)
FB-1.7 (44%)

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)
201721ROK MLEGCL Marlins431142111075%2.826.2%2.4%23.8%0.0%0.821.19—
201721ROK RAWGCL Marlins431142111075%2.826.2%2.4%23.8%0.0%0.821.37—
201822MIX MLE3 levels211588384558871%4.210.5%2.5%8.0%2.9%4.484.11—
201822MIX RAW3 levels211588384558871%4.214.3%2.1%12.2%2.1%4.483.30—
201923MIX MLE2 levels35371292721659%2.018.7%6.4%12.3%2.5%2.023.73—
201923MIX RAW2 levels35371292721659%2.024.7%5.5%19.2%1.7%2.022.67—
202125MIX MLE3 levels40161262691642%1.523.2%6.3%16.9%1.8%5.192.93+1.2
202125MIX RAW3 levels40161262691642%1.526.3%6.1%20.2%1.5%5.192.47+1.5
202327MIX MLE3 levels396512086212915%1.323.4%6.0%17.4%7.2%3.555.82—
202327MIX RAW3 levels396512086212915%1.329.8%5.8%24.0%4.3%3.553.67—
202428MIX MLE2 levels56273295641744%1.319.2%5.3%14.0%1.9%2.603.18+1.2
202428MIX MLE2 levels56273295641744%1.319.2%5.3%14.0%1.9%2.603.18+1.2
202428MIX RAW2 levels56273295641744%1.321.7%5.8%15.9%1.4%2.602.76+1.6
202529MIX MLE4 levels1621877157112%1.119.5%9.1%10.4%1.3%5.403.32+0.3
202529MIX MLE4 levels1621877157112%1.119.5%9.1%10.4%1.3%5.403.32+0.3
202529MIX RAW4 levels1621877157112%1.119.5%9.1%10.4%1.3%5.403.32+0.3
202630AAA MLEToledo Mud Hens1231770155225%1.418.4%6.4%12.0%3.1%5.404.08—
202630AAA MLEToledo Mud Hens1231770155225%1.418.4%6.4%12.0%3.1%5.404.08—
202630AAA RAWToledo Mud Hens1231770155225%1.421.4%7.1%14.3%2.9%5.403.76—
▸ Career totals (raw MLB only — as recorded)
MLB Career—40152219351612%1.316.0%7.3%8.7%0.5%5.052.93+1.0
▸ 2027 season — projected remainder (no 2027 stats recorded)
202731MLBDET50052220371760%1.016.7%7.6%9.0%2.8%4.344.57-0.0
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202832MLB MLEDET46048205341760%1.116.6%8.2%8.4%3.1%4.614.80-0.1
202933MLB MLEDET42044188301660%1.116.2%8.7%7.5%3.3%4.865.05-0.3
202832MLB CTXDET170187613620%1.116.6%8.2%8.4%3.1%4.614.80-0.1
202933MLB CTXDET2402510617940%1.016.2%8.7%7.5%3.3%4.865.05-0.1
▸ Career totals — MLB only (actual + projected)
Career— RAW80194398643171%1.216.1%7.8%8.3%1.7%4.923.66+1.0
/ 200 IP— RAW171220084613666151%1.216.1%7.8%8.3%1.7%4.923.66+2.1
Career— MLE223353901630300854716%1.718.4%5.2%13.2%2.9%3.653.79+0.6
/ 200 IP— MLE11418200837154442416%1.718.4%5.2%13.2%2.9%3.653.79+0.8

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 PROJECTION1.03916.4%8.0%0.924.71
Dave Leiper ('84-'96, 0 WAR*)1.44615.6%*9.1%*0.94*4.28*
Ramon Pena ('11)1.96316.0%8.0%0.904.43
Vic Darensbourg ('05)1.55017.0%9.3%1.014.96
Travis Miller ('02)1.34516.3%9.2%0.915.05
Joe Grzenda ('61-'72, 0 WAR*)1.55117.2%*8.6%*0.76*4.83*
Bert Roberge ('79-'86, 1 WAR*)1.13718.1%*8.7%*0.68*4.73*