Walter Pennington

P Chesapeake Baysox
Age 29 LHP 6'2" / 205 lbs AA peak 0.2 · 2027
Overview
AARPROOKIE
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202325MIX2 levels491713.183.3825.5%11.9%—K 21.3% · BB 10.8% · FIP 3.91
202426MIX2 levels553812.322.9629.2%9.4%1.5K 25.8% · BB 8.8% · FIP 3.34
202527MIX3 levels181224.152.4128.1%13.5%—K 22.7% · BB 10.3% · FIP 2.49
2027PROJ29MLBBAL180194.234.1724.2%9.5%0.1
2028PROJ31% MLB30MLBBAL6064.334.3923.4%9.8%0.0
Last 3 seasons WAR 1.5  ·  Next 2 projected WAR 0.1Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
Skills · percentileStatcast 2024
Whiff%58
K%36
xwOBA vs18
FB Velo10
CompsYuki Matsui (age 28) · Raul Valdes (age 32) · Ryan O'Rourke (age 28)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 96104vR 112
ERA4.23
FIP4.17
K%24.2%
BB%9.5%
K-BB%14.7%
Proj IP19
Value2027 · WAR
Runs saved vs league avg · 19 IP
K: +0.4 runs (Runs saved by strikeouts vs lg-avg K%)+0KBB: -0.2 runs (Runs saved by walk suppression vs lg-avg BB%)-0BBCONTACT: -0.1 runs (Runs saved on contact quality (HR suppression) vs lg)-0CONTACTSTAM: +0.8 runs (Replacement credit for innings volume)+1STAMTotal WAR: +0.08 (19 IP)+0.1WAR
0.10.00.0272829
Grades · Statcast · Arsenal · Contract
Scouting Grades
K†6060
Statcast Percentiles
FB Velo
p1089.6
Whiff%
p5826.5%
K%
p3620.2%
xwOBA vs
p180.350
FB+1.5 (33%)
SI (30%)
CT-0.8 (26%)
SL-2.3 (41%)

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)
202123MIX MLE2 levels25043185401430%1.716.0%9.0%7.0%1.2%3.323.56—
202123MIX RAW2 levels25043185401430%1.721.6%7.6%14.1%1.6%3.323.12—
202224MIX MLE2 levels36168298612643%1.915.1%9.9%5.2%1.9%5.194.12—
202224MIX RAW2 levels36168298612643%1.920.5%8.7%11.7%1.3%5.193.22—
202325MIX MLE2 levels49171294753552%1.421.3%10.8%10.5%2.3%3.183.91—
202325MIX RAW2 levels49171294753552%1.425.5%11.9%13.6%1.7%3.183.38—
202426MIX MLE2 levels55381339993275%1.525.8%8.8%17.0%2.4%2.323.34+1.2
202426MIX MLE2 levels55381339993275%1.525.8%8.8%17.0%2.4%2.323.34+1.2
202426MIX RAW2 levels55381339993275%1.529.2%9.4%19.8%2.1%2.322.96+1.5
202527MIX MLE3 levels1812296271306%1.222.7%10.3%12.4%0.0%4.152.49—
202527MIX MLE3 levels1812296271306%1.222.7%10.3%12.4%0.0%4.152.49—
202527MIX RAW3 levels1812296271306%1.228.1%13.5%14.6%0.0%4.152.41—
▸ Career totals (raw MLB only — as recorded)
MLB Career—1611884171116%1.120.2%13.1%7.1%1.2%3.003.77+0.2
▸ 2027 season — projected remainder (no 2027 stats recorded)
202729MLBBAL180198019820%1.124.2%9.5%14.7%2.8%4.234.17+0.1
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202830MLB MLEBAL190208420830%1.123.4%9.8%13.7%3.0%4.334.39+0.0
202830MLB CTXBAL606256210%1.023.4%9.8%13.7%3.0%4.334.39+0.0
▸ Career totals — MLB only (actual + projected)
Career— RAW22124110231425%1.121.0%12.3%8.7%1.6%3.343.78+0.2
/ 200 IP— RAW1818200910190115165%1.121.0%12.3%8.7%1.6%3.343.78+1.8
Career— MLE18362851212246117233%1.620.3%9.7%10.6%1.9%3.513.63+0.2
/ 200 IP— MLE129420085217382163%1.620.3%9.7%10.6%1.9%3.513.63+1.1

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 PROJECTION0.32922.6%10.8%0.903.88
Ray Searage ('81-'90, 4 WAR*)1.44121.0%*10.8%*0.84*3.70*
José Cisnero ('24)1.44624.0%11.3%1.014.16
Ed Vosberg ('86-'02, 1 WAR*)1.24721.0%*9.6%*0.86*4.06*
Manny Acosta ('12)1.24120.5%10.9%1.093.99
Dave Geisel ('78-'85, 2 WAR*)1.04223.5%*10.6%*0.84*4.12*
George Sherrill ('12)1.64622.9%11.0%0.803.77