Santiago Guerrero

P DSL Giants Black
Age 20 LHP ROK
Overview
ROKPROSPECT
ETA2028MLB%0%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202619ROKDSL Giants Bl…1111353.344.1624.8%21.7%—K 16.9% · BB 27.1% · FIP 5.59
2027PROJ20MLB—44215.855.8520.9%20.0%-0.2
2028PROJ49% MLB21MLB—33165.505.3621.5%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 97%
CompsLuke Fox (age 22) · Jacob Heatherly (age 20) · Liam Sullivan (age 21)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 128136vR 144
ERA5.85
FIP5.85
K%20.9%
BB%20.0%
K-BB%0.9%
Proj IP21
Value2027 · WAR
Runs saved vs league avg · 21 IP
K: -0.2 runs (Runs saved by strikeouts vs lg-avg K%)-0KBB: -3.1 runs (Runs saved by walk suppression vs lg-avg BB%)-3BBCONTACT: -0.6 runs (Runs saved on contact quality (HR suppression) vs lg)-1CONTACTSTAM: +0.9 runs (Replacement credit for innings volume)+1STAMTotal WAR: -0.32 (21 IP)-0.3WAR
-0.2-0.12728
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)
202619ROK MLEDSL Giants Black11113515739341100%3.216.9%27.1%-10.2%0.9%3.345.59—
202619ROK MLEDSL Giants Black11113515739341100%3.216.9%27.1%-10.2%0.9%3.345.59—
202619ROK RAWDSL Giants Black11113515739341100%3.224.8%21.7%3.2%0.6%3.344.16—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202720MLB—44218919183100%5.220.9%20.0%0.9%2.9%5.855.85-0.2
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202821MLB MLE—663314030244100%5.521.5%16.8%4.7%2.9%5.505.36-0.2
202821MLB CTX—33166815112100%5.321.5%16.8%4.7%2.9%5.505.36-0.1
▸ Career totals — MLB only (actual + projected)
Career— RAW33166915122100%5.421.5%16.8%4.7%2.9%5.504.98-0.0
/ 200 IP— RAW414120084418414725100%4.821.5%16.8%4.7%2.9%5.504.98-0.2
Career— MLE11113515727421100%3.216.9%27.1%-10.2%0.9%3.345.59-0.2
/ 200 IP— MLE63632008971522438100%3.216.9%27.1%-10.2%0.9%3.345.59-1.1

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 PROJECTION0.32721.3%18.1%1.115.64
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
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*
Lloyd Allen ('69-'75, -5 WAR*)1.55919.8%*13.9%*0.79*5.99*