Moneyball Labs
Zach Rosenberg
Kiwoom HeroesStarting pitcherBelow qualification

Zach Rosenberg

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Born
1995-07-09· 31
Bats / throws
bats left, throws left
Height · Weight
186 cm · 90 kg
Draft
25 키움 자유선발
Debut
2025

Path미국 California State(대)키움

Percentile

Against the league

Percentile against every qualified pitcher in the league this season.

ERA4.80
FIP3.59
K%23.4%
BB%7.3%
HR/90.6
WHIP1.57
WAR0.74

Workload

Pitches / inning

18.5

Pitches / batter

4.06

Fatigue index

94

100 is a league-typical workload. Above it, the arm is doing more work per out than the innings column suggests.

7 G

Pitching line

IP30TBF137
W0L2
SV0HLD0
H37HR2
BB10HBP3
SO32NP556
R16ER16
QS0BSV0
CG0SHO0

Advanced

ERA4.80FIP3.59
E−F+1.21WHIP1.57
ERA+97FIP+130
K/99.6BB/93.0
HR/90.6K/BB3.20
BABIP.389LOB%72%
Opp AVG.301WAR0.74

Nearest neighbours

Closest comparables

Nearest neighbours by standardised rate profile, not by reputation.

PlayerTeamIPERAFIPK%BB%HR/9WAR
Ko Young-pyoKT139 2/33.803.3525.6%3.4%0.93.80
James NaileKIA152 2/33.663.8119.7%4.7%0.73.41
Choi Min-seokDoosan133 2/32.693.8320.6%9.3%0.52.96
TolhurstLG134 1/34.224.0119.0%5.6%0.82.72
Zach LogueDoosan137 2/33.864.1120.9%4.6%1.02.64

Pitcher WAR is built from FIP, so it credits strikeouts, walks and home runs and stays neutral on everything the defence touched. Relief innings are not leverage-weighted, which understates a closer.