Esmerbin Guerrero
P DSL Cubs Red
Age 19
RHP
ROK
Overview
ROKPROSPECT
ETA2028MLB%0%
| Year | Age | Lvl / Team | G | GS | IP | ERA | FIP | K% | BB% | WAR | MLE rates |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 18 | ROKDSL Cubs Red | 17 | 0 | 23 | 6.17 | 5.20 | 19.6% | 24.3% | — | K 13.3% · BB 30.4% · FIP 6.54 |
| 2027PROJ | 19 | MLB— | 13 | 0 | 14 | 5.91 | 5.91 | 20.4% | 20.0% | -0.2 | |
| 2028PROJ49% MLB | 20 | MLB— | 10 | 0 | 11 | 5.55 | 5.42 | 21.1% | 16.8% | -0.1 |
Next 2 projected WAR -0.3Projected 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 100%
CompsAlejandro Lugo (age 18) · Elison Joseph (age 20) · Daniel Lloyd (age 20)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 145137vR 129
ERA5.91
FIP5.91
K%20.4%
BB%20.0%
K-BB%0.4%
Proj IP14
Value2027 · WAR
Runs saved vs league avg · 14 IP
Grades · Contract
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.
| Year | Age | Lvl | Team | G | GS | IP | BF | K | BB | HR | GS% | IP/G | K% | BB% | K-BB% | HR% | ERA | FIP | 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) | |||||||||||||||||||
| 2026 | 18 | ROK MLE | DSL Cubs Red | 17 | 0 | 23 | 107 | 21 | 26 | 1 | 0% | 1.4 | 13.3% | 30.4% | -17.0% | 1.3% | 6.17 | 6.54 | — |
| 2026 | 18 | ROK MLE | DSL Cubs Red | 17 | 0 | 23 | 107 | 21 | 26 | 1 | 0% | 1.4 | 13.3% | 30.4% | -17.0% | 1.3% | 6.17 | 6.54 | — |
| 2026 | 18 | ROK RAW | DSL Cubs Red | 17 | 0 | 23 | 107 | 21 | 26 | 1 | 0% | 1.4 | 19.6% | 24.3% | -4.7% | 0.9% | 6.17 | 5.20 | — |
| ▸ 2027 season — projected remainder (no 2027 stats recorded) | |||||||||||||||||||
| 2027 | 19 | MLB | — | 13 | 0 | 14 | 59 | 12 | 12 | 2 | 0% | 1.1 | 20.4% | 20.0% | 0.4% | 2.9% | 5.91 | 5.91 | -0.2 |
| ▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%) | |||||||||||||||||||
| 2028 | 20 | MLB MLE | — | 21 | 0 | 22 | 93 | 20 | 16 | 3 | 0% | 1.1 | 21.1% | 16.8% | 4.3% | 2.9% | 5.55 | 5.42 | -0.2 |
| 2028 | 20 | MLB CTX | — | 10 | 0 | 11 | 46 | 10 | 8 | 1 | 0% | 1.1 | 21.1% | 16.8% | 4.3% | 2.9% | 5.55 | 5.42 | -0.1 |
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||
| Career | — | RAW | 10 | 0 | 11 | 46 | 10 | 8 | 1 | 0% | 1.1 | 21.2% | 16.8% | 4.3% | 2.9% | 5.55 | 5.04 | -0.1 | |
| / 200 IP | — | RAW | 190 | 0 | 200 | 844 | 184 | 147 | 18 | 0% | 1.0 | 21.2% | 16.8% | 4.3% | 2.9% | 5.55 | 5.04 | -1.1 | |
| Career | — | MLE | 17 | 0 | 23 | 107 | 14 | 32 | 1 | 0% | 1.4 | 13.3% | 30.4% | -17.0% | 1.3% | 6.17 | 6.54 | -0.2 | |
| / 200 IP | — | MLE | 146 | 0 | 200 | 917 | 122 | 279 | 12 | 0% | 1.4 | 13.3% | 30.4% | -17.0% | 1.3% | 6.17 | 6.54 | -2.0 | |