Jhonathan Díaz

P Tacoma Rainiers
Age 30 LHP 6'0" / 170 lbs AAA
Overview
AAARPROOKIE
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202427MIX2 levels28231274.383.5122.4%9.6%2.2K 19.7% · BB 8.9% · FIP 3.48
202528MIX2 levels28261404.113.6119.8%4.1%2.2K 17.0% · BB 3.7% · FIP 3.67
202629MIX2 levels30281386.204.9317.7%7.9%-0.0K 15.2% · BB 7.2% · FIP 5.07
2027PROJ30MLBSEA1515904.824.7615.2%5.7%0.1
2028PROJ37% MLB31MLBSEA55314.874.9415.2%6.3%-0.0
2029PROJ55% MLB32MLBSEA77434.854.8816.9%6.0%0.0
Last 3 seasons WAR 4.3  ·  Next 3 projected WAR 0.1Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
Scouting grades · 20-80
Stuff47Control59Command53FB velo50
Career WAR0 WAR median (P10 -0 / P90 0, comp-based) · star 0% · didn't stick 100%
CompsRoy Merritt (age 30) · Kwang Hyun Kim (age 32) · John Bale (age 29)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 107115vR 124
ERA4.82
FIP4.76
K%15.2%
BB%5.7%
K-BB%9.5%
Proj IP90
Value2027 · WAR
Runs saved vs league avg · 90 IP
K: -4.6 runs (Runs saved by strikeouts vs lg-avg K%)-5KBB: +2.8 runs (Runs saved by walk suppression vs lg-avg BB%)+3BBCONTACT: -4.0 runs (Runs saved on contact quality (HR suppression) vs lg)-4CONTACTSTAM: +10.1 runs (Replacement credit for innings volume)+10STAMTotal WAR: +0.45 (90 IP)+0.5WAR
0.10.00.0272829
Grades · Arsenal · Contract
Scouting Grades
OFP—35
STUF4545
CTRL6060
CMD5555
K†3040
SL+0.7 (46%)
CH (19%)
SI (12%)
CU (12%)
FB-0.5 (23%)

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)
201619ROK MLEGCL Red Sox1312602475718292%4.615.7%9.1%6.6%1.1%2.853.55—
201619ROK RAWGCL Red Sox1312602475718292%4.623.1%7.3%15.8%0.8%2.852.53—
201720A MLEGreenville Drive18188938980284100%4.915.2%8.5%6.7%0.9%4.573.37—
201720A RAWGreenville Drive18188938980284100%4.920.6%7.2%13.4%1.0%4.572.83—
201821MIX MLE2 levels2727157640151417100%5.817.6%7.5%10.2%1.4%3.093.31—
201821MIX RAW2 levels2727157640151417100%5.823.6%6.4%17.2%1.1%3.092.54—
201922A+ MLESalem Red Sox2727128562118546100%4.816.2%11.0%5.1%1.2%3.863.81—
201922A+ RAWSalem Red Sox2727128562118546100%4.821.0%9.6%11.4%1.1%3.863.13—
202124MIX MLE3 levels19148938210127674%4.722.1%7.5%14.6%1.5%4.033.01+2.1
202124MIX RAW3 levels19148938210127674%4.726.4%7.1%19.4%1.6%4.032.62+2.6
202225MIX MLE2 levels1413622735730593%4.518.9%11.4%7.5%2.0%4.484.05+0.6
202225MIX RAW2 levels1413622735730593%4.520.9%11.0%9.9%1.8%4.483.76+0.9
202326MIX MLE2 levels4299441783501021%2.218.1%10.3%7.8%2.9%4.984.48+0.1
202326MIX RAW2 levels4299441783501021%2.219.9%12.0%7.9%2.4%4.984.31+0.3
202427MIX MLE2 levels2823127571128551182%4.519.7%8.9%10.8%1.7%4.383.48+2.2
202427MIX MLE2 levels2823127571128551182%4.519.7%8.9%10.8%1.7%4.383.48+2.2
202427MIX RAW2 levels2823127571128551182%4.522.4%9.6%12.8%1.9%4.383.51+2.2
202528MIX MLE2 levels2826140591117241893%5.017.0%3.7%13.3%2.8%4.113.67+2.1
202528MIX MLE2 levels2826140591117241893%5.017.0%3.7%13.3%2.8%4.113.67+2.1
202528MIX RAW2 levels2826140591117241893%5.019.8%4.1%15.7%3.0%4.113.61+2.2
202629MIX MLE2 levels3028138622110492593%4.615.2%7.2%8.1%4.3%6.205.07-0.3
202629MIX MLE2 levels3028138622110492593%4.615.2%7.2%8.1%4.3%6.205.07-0.3
202629MIX RAW2 levels3028138622110492593%4.617.7%7.9%9.8%4.0%6.204.93-0.0
▸ Career totals (raw MLB only — as recorded)
MLB Career—187482253427539%2.615.1%12.0%3.1%2.2%4.724.74-0.1
▸ 2027 season — projected remainder (no 2027 stats recorded)
202730MLBSEA151590380582213100%6.015.2%5.7%9.5%3.4%4.824.76+0.1
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202831MLB MLESEA141484354542213100%6.015.2%6.3%8.9%3.5%4.874.94-0.0
202932MLB MLESEA131378328552012100%6.016.9%6.0%10.9%3.8%4.854.88+0.0
202831MLB CTXSEA55311312085100%6.215.2%6.3%8.9%3.5%4.874.94-0.0
202932MLB CTXSEA774318231117100%6.116.9%6.0%10.9%3.8%4.854.88+0.0
▸ Career totals — MLB only (actual + projected)
Career— RAW301912153684461663%4.015.7%8.6%7.1%3.1%4.804.54+0.5
/ 200 IP— RAW5032200884139762664%4.015.7%8.6%7.1%3.1%4.804.54+0.8
Career— MLE246197108546948213859880%4.417.5%8.2%9.3%2.1%4.293.81+0.1
/ 200 IP— MLE4536200865151711880%4.417.5%8.2%9.3%2.1%4.293.81+0.1

Career Comps

Completed MLB careers (no pro action in 2+ yrs) whose totals — actual + projected — most resemble this player's. Pool: 3,327 pitcher careers (1,251 from 1990-2025 + 2,076 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 PROJECTION1.510015.6%7.0%1.284.83
Paul Reuschel ('75-'79, 1 WAR*)2.07916.8%*7.6%*1.29*4.76*
Bill Trotter ('37-'44, -3 WAR*)2.49715.3%*7.0%*1.43*4.99*
Al Sima ('50-'54, -1 WAR*)1.57715.8%*8.0%*1.37*4.76*
Joe Roa ('04)1.36613.1%6.1%1.324.94
Ramon Garcia ('97)1.610415.1%7.9%1.444.84
Bryan Hickerson ('95)2.08115.9%8.1%1.164.72