Kelvin Herrera

P DSL Astros Blue
Age 19 RHP ROK
Overview
ROKPROSPECT
ETA2028MLB%0%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202618ROKDSL Astros Bl…120146.915.8215.5%22.5%—K 10.5% · BB 28.2% · FIP 6.86
2027PROJ19MLBHOU8085.915.9120.5%20.0%-0.1
2028PROJ49% MLB20MLBHOU100105.555.4221.3%16.8%-0.1
Next 2 projected WAR -0.2Projected 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) · Daniel Lloyd (age 20) · Michael Perez (age 21)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 145137vR 129
ERA5.91
FIP5.91
K%20.5%
BB%20.0%
K-BB%0.5%
Proj IP8
Value2027 · WAR
Runs saved vs league avg · 8 IP
K: -0.1 runs (Runs saved by strikeouts vs lg-avg K%)-0KBB: -1.2 runs (Runs saved by walk suppression vs lg-avg BB%)-1BBCONTACT: -0.3 runs (Runs saved on contact quality (HR suppression) vs lg)-0CONTACTSTAM: +0.3 runs (Replacement credit for innings volume)+0STAMTotal WAR: -0.13 (8 IP)-0.1WAR
-0.1-0.12728
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)
202618ROK MLEDSL Astros Blue1201471111610%1.210.5%28.2%-17.6%2.0%6.916.86—
202618ROK MLEDSL Astros Blue1201471111610%1.210.5%28.2%-17.6%2.0%6.916.86—
202618ROK RAWDSL Astros Blue1201471111610%1.215.5%22.5%-7.0%1.4%6.915.82—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202719MLBHOU808347710%1.020.5%20.0%0.5%3.0%5.915.91-0.1
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202820MLB MLEHOU1902084181420%1.121.3%16.8%4.4%2.9%5.555.42-0.2
202820MLB CTXHOU10010429710%1.021.3%16.8%4.4%2.9%5.555.42-0.1
▸ Career totals — MLB only (actual + projected)
Career— RAW9010429710%1.121.3%16.8%4.4%2.9%5.555.04-0.1
/ 200 IP— RAW1900200844183142200%1.121.3%16.8%4.4%2.9%5.555.04-1.2
Career— MLE120147172010%1.210.5%28.2%-17.6%2.0%6.916.86-0.2
/ 200 IP— MLE1670200991104279200%1.210.5%28.2%-17.6%2.0%6.916.86-2.0