Jacob Hartlaub

P Charleston RiverDogs
Age 24 RHP 6'3" / 191 lbs A
Overview
APROSPECT
ETA2028MLB%0%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202522ATB60103.603.0017.9%0.0%—K 17.9% · BB 0.0% · FIP 2.99
202623MIX2 levels370535.234.1725.3%8.4%—K 18.9% · BB 9.9% · FIP 5.43
2027PROJ24MLBTB350374.794.7920.4%9.8%-0.1
2028PROJ43% MLB25MLBTB200214.694.6521.1%9.4%-0.0
2029PROJ66% MLB26MLBTB300324.634.6121.5%9.3%-0.0
Next 3 projected WAR -0.1Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
Career WAR0 WAR median (P10 0 / P90 0, comp-based) · star 0% · didn't stick 99%
CompsHueston Morrill (age 24) · Ricardo Velez (age 24) · Jon Leicester (age 25)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 124116vR 108
ERA4.79
FIP4.79
K%20.4%
BB%9.8%
K-BB%10.6%
Proj IP37
Value2027 · WAR
Runs saved vs league avg · 37 IP
K: -0.5 runs (Runs saved by strikeouts vs lg-avg K%)-0KBB: -0.5 runs (Runs saved by walk suppression vs lg-avg BB%)-0BBCONTACT: -1.5 runs (Runs saved on contact quality (HR suppression) vs lg)-2CONTACTSTAM: +1.5 runs (Replacement credit for innings volume)+2STAMTotal WAR: -0.10 (37 IP)-0.1WAR
-0.10.00.0272829
Grades · Contract
Scouting Grades
K†5050

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)
202522A MLECharleston RiverDogs6010397010%1.717.9%0.0%17.9%2.6%3.602.99—
202522A MLECharleston RiverDogs6010397010%1.717.9%0.0%17.9%2.6%3.602.99—
202522A RAWCharleston RiverDogs6010397010%1.717.9%0.0%17.9%2.6%3.603.00—
202623MIX MLE2 levels37053237602090%1.418.9%9.9%9.0%4.9%5.235.43—
202623MIX MLE2 levels37053237602090%1.418.9%9.9%9.0%4.9%5.235.43—
202623MIX RAW2 levels37053237602090%1.425.3%8.4%16.9%3.8%5.234.17—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202724MLBTB35037156321550%1.120.4%9.8%10.6%3.3%4.794.79-0.1
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202825MLB MLETB46049205431970%1.121.1%9.4%11.7%3.2%4.694.65-0.1
202926MLB MLETB46049205441970%1.121.5%9.3%12.2%3.2%4.634.61-0.0
202825MLB CTXTB200218919830%1.121.1%9.4%11.7%3.2%4.694.65-0.0
202926MLB CTXTB30032135291340%1.121.5%9.3%12.2%3.2%4.634.61-0.0
▸ Career totals — MLB only (actual + projected)
Career— RAW50053224482170%1.121.3%9.3%12.0%3.2%4.654.25+0.2
/ 200 IP— RAW190020084418179260%1.121.3%9.3%12.0%3.2%4.654.25+0.7
Career— MLE430632765223130%1.518.8%8.5%10.3%4.5%4.975.08-0.1
/ 200 IP— MLE136020087216474400%1.518.8%8.5%10.3%4.5%4.975.08-0.2

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 PROJECTION0.74521.0%9.5%1.254.70
Sam Long ('25)1.14219.5%9.7%1.284.65
Yency Almonte ('24)1.14522.5%9.9%1.134.44
Chris Hatcher ('18)1.35322.9%8.4%1.324.65
Bob Macdonald ('90-'96, 1 WAR*)1.25918.3%*9.8%*1.20*4.32*
Bill Scherrer ('82-'88, 1 WAR*)1.66220.7%*10.2%*1.19*4.44*
Bill Pleis ('61-'66, -0 WAR*)1.45619.7%*9.8%*1.15*4.53*