Isaias Acosta

P DSL Rangers Blue
Age 18 RHP ROK
Overview
ROKPROSPECT
ETA2028MLB%0%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202617ROKDSL Rangers B…118367.255.2915.8%18.1%—K 10.8% · BB 22.6% · FIP 6.36
2027PROJ18MLBTEX55216.086.0818.2%19.8%-0.3
2028PROJ49% MLB19MLBTEX44175.695.5419.5%16.7%-0.1
Next 2 projected WAR -0.4Projected 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%
CompsJefferson Jean (age 19) · Jose Pena Jr. (age 19) · Brailin Rodriguez (age 18)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 149140vR 132
ERA6.08
FIP6.08
K%18.2%
BB%19.8%
K-BB%-1.6%
Proj IP21
Value2027 · WAR
Runs saved vs league avg · 21 IP
K: -0.7 runs (Runs saved by strikeouts vs lg-avg K%)-1KBB: -3.0 runs (Runs saved by walk suppression vs lg-avg BB%)-3BBCONTACT: -0.7 runs (Runs saved on contact quality (HR suppression) vs lg)-1CONTACTSTAM: +0.9 runs (Replacement credit for innings volume)+1STAMTotal WAR: -0.38 (21 IP)-0.4WAR
-0.3-0.12728
Grades · Contract
Scouting Grades
K†4545

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)
202617ROK MLEDSL Rangers Blue118361772832373%3.310.8%22.6%-11.8%2.4%7.256.36—
202617ROK MLEDSL Rangers Blue118361772832373%3.310.8%22.6%-11.8%2.4%7.256.36—
202617ROK RAWDSL Rangers Blue118361772832373%3.315.8%18.1%-2.3%1.7%7.255.29—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202718MLBTEX55218916183100%4.218.2%19.8%-1.6%3.0%6.086.08-0.3
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202819MLB MLETEX883414428244100%4.219.5%16.7%2.8%2.9%5.695.54-0.2
202819MLB CTXTEX44177214122100%4.219.5%16.7%2.8%2.9%5.695.54-0.1
▸ Career totals — MLB only (actual + projected)
Career— RAW44177114122100%4.219.5%16.7%2.8%2.9%5.695.16-0.1
/ 200 IP— RAW444420084416814424100%4.519.5%16.7%2.8%2.9%5.695.16-0.6
Career— MLE118361771940473%3.310.8%22.6%-11.8%2.4%7.256.36-0.2
/ 200 IP— MLE61442009831062222373%3.310.8%22.6%-11.8%2.4%7.256.36-1.5

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 PROJECTION0.32819.0%17.9%1.145.84
Brian Bruney ('12)1.34321.2%15.8%0.944.68
Doug Creek ('05)1.45822.2%15.1%1.525.32
Matt Anderson ('05)1.35119.3%13.5%1.055.19
Lloyd Allen ('69-'75, -5 WAR*)1.55919.8%*13.9%*0.79*5.99*
Dwayne Henry ('84-'95, -1 WAR*)1.76723.8%*14.2%*0.90*5.02*
Ron Piche ('60-'66, -3 WAR*)1.14420.6%*12.8%*1.14*5.06*