Zach Rosenberg
로젠버그
A 31-year-old left-handed pitcher for the Kiwoom Heroes, signed by Kiwoom in 2025. This is his 2nd season since a 2025 debut. This season, working mostly in starts: 0–2, a 4.80 ERA over 30.0 innings, 3.59 FIP and 0.74 WAR.
- Born
- 1995-07-09· 31
- Position
- Pitcher
- Bats / throws
- bats left, throws left
- Height · Weight
- 186 cm · 90 kg
- Draft
- Signed by Kiwoom in 2025
- Debut
- 2025
Path미국 California State(대)키움
Percentile
Against the league
Percentile against every qualified pitcher in the league this season.
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
| IP | 30 | TBF | 137 |
| W | 0 | L | 2 |
| SV | 0 | HLD | 0 |
| H | 37 | HR | 2 |
| BB | 10 | HBP | 3 |
| SO | 32 | NP | 556 |
| R | 16 | ER | 16 |
| QS | 0 | BSV | 0 |
| CG | 0 | SHO | 0 |
Advanced
| ERA | 4.80 | FIP | 3.59 |
| E−F | +1.21 | WHIP | 1.57 |
| ERA+ | 97 | FIP+ | 130 |
| K/9 | 9.6 | BB/9 | 3.0 |
| HR/9 | 0.6 | K/BB | 3.20 |
| BABIP | .389 | LOB% | 72% |
| Opp AVG | .301 | WAR | 0.74 |
Nearest neighbours
Closest comparables
Nearest neighbours by standardised rate profile, not by reputation.
| Player | Team | IP | ERA | FIP | K% | BB% | HR/9 | WAR |
|---|---|---|---|---|---|---|---|---|
| Jeremy Beasley | Lotte | 147 | 4.96 | 3.72 | 24.1% | 6.7% | 0.8 | 3.41 |
| Won Tae-in | Samsung | 145 1/3 | 4.52 | 3.35 | 18.5% | 5.4% | 0.4 | 3.95 |
| Park Se-woong | Lotte | 147 1/3 | 4.64 | 4.25 | 19.1% | 8.0% | 0.7 | 2.60 |
| Choi Min-seok | Doosan | 146 1/3 | 3.20 | 3.75 | 20.4% | 8.5% | 0.5 | 3.36 |
| James Naile | KIA | 183 | 3.49 | 3.67 | 20.5% | 5.0% | 0.6 | 4.35 |
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.