Roberto Perez P ACL Mariners
Age 22 RHP 5'9" / 145 lbs ROK peak 0.3 · 2029
2026 FULL-SEASON PROJECTIONpark-neutral Marcel · 17 proj IP
wRC+ AGAINSTvL 116108vR 100
ERA4.36
FIP4.36
K%23.0%
BB%9.8%
K-BB%13.2%
ROS IP18
Value2026 · WAR
Runs saved vs league avg · 17 IP
K: +0.1 runs (Runs saved by strikeouts vs lg-avg K%)+0KBB: -0.2 runs (Runs saved by walk suppression vs lg-avg BB%)-0BBCONTACT: -0.3 runs (Runs saved on contact quality (HR suppression) vs lg)-0CONTACTSTAM: +0.7 runs (Replacement credit for innings volume)+1STAMTotal WAR: +0.04 (17 IP)+0.0WAR
0.00.10.20.20.30.226283031
Grades · Contract
Scouting Grades
K†5560

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 + 2026 so far)
202420ROK MLEDSL Mariners173381564611118%2.220.1%8.8%11.2%0.9%2.843.01
202420ROK MLEDSL Mariners173381564611118%2.220.1%8.8%11.2%0.9%2.843.01
202420ROK RAWDSL Mariners173381564611118%2.229.5%7.1%22.4%0.6%2.841.89
202521MIX MLE2 levels18026102341210%1.524.4%10.9%13.5%0.0%3.422.42
202521MIX MLE2 levels18026102341210%1.524.4%10.9%13.5%0.0%3.422.42
202521MIX RAW2 levels18026102341210%1.533.3%11.8%21.6%1.0%3.422.38
▸ 2026 season
YTD22ROK MLEACL Mariners138461824210062%3.515.7%6.9%8.8%0.0%2.562.64
YTD22ROK MLEACL Mariners138461824210062%3.515.7%6.9%8.8%0.0%2.562.64
▸ 2026 season — so far · projected rest · full
202622ROK RAWSEA138461824210062%3.523.1%5.5%17.6%0.0%2.561.85
▸ Career projection (2027+) — MLB context, MLB playing time (IP × MLB%)
202723MLB MLESEA44046196471860%1.123.8%9.2%14.6%2.8%4.264.20+0.2
202824MLB MLESEA45048201491860%1.124.3%8.8%15.4%2.8%4.174.10+0.3
202925MLB MLESEA46048204501860%1.024.6%8.7%16.0%2.8%4.104.05+0.3
203026MLB MLESEA46048204501860%1.024.8%8.6%16.2%2.8%4.064.03+0.3
203127MLB MLESEA45048201501760%1.124.8%8.7%16.1%2.9%4.074.07+0.3
202723MLB CTXSEA220239723930%1.023.8%9.2%14.6%2.8%4.264.20+0.1
202824MLB CTXSEA31033139341240%1.124.3%8.8%15.4%2.8%4.174.10+0.2
202925MLB CTXSEA37039165411450%1.124.6%8.7%16.0%2.8%4.104.05+0.2
203026MLB CTXSEA40042177441550%1.124.8%8.6%16.2%2.8%4.064.03+0.3
203127MLB CTXSEA41043182451650%1.024.8%8.7%16.1%2.9%4.074.07+0.2
▸ Career totals — MLB only (actual + projected)
Career RAW172018076118767220%1.024.5%8.8%15.8%2.8%4.123.70+1.8
/ 200 IP RAW190020084420874240%1.124.5%8.8%15.8%2.8%4.123.70+2.0
Career MLE48111104408537123%2.319.3%8.5%10.8%0.3%2.862.72+1.3
/ 200 IP MLE872020080015468323%2.319.3%8.5%10.8%0.3%2.862.72+1.1

Career Comps

Retired MLB careers whose totals most resemble what we're projecting for this player. Pool: 133 completed pitcher careers (2015-2024).

Player162sIP/yrK%BB%HR/9ERA
OGILVIE CAREER PROJECTION1.34324.4%8.9%1.104.15
Noé Ramirez ('22)1.35224.8%9.0%1.334.19
Cam Bedrosian ('21)1.34524.5%10.0%0.973.68
Jacob Barnes ('24)1.54222.1%9.6%1.214.58
Dominic Leone ('23)1.64624.2%10.1%1.333.81
Robert Stephenson ('23)1.75726.2%9.9%1.394.33
JT Chargois ('24)1.23323.3%9.3%0.973.35