Rayner Castillo

P West Michigan Whitecaps
Age 23 RHP 6'3" / 180 lbs A+ peak 0.4 · 2030
Overview
A+PROSPECT
ETA2028MLB%0%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202420MIX2 levels1616702.563.2320.2%8.3%—K 12.8% · BB 9.5% · FIP 4.04
202521A+DET2523995.294.4618.5%10.6%—K 14.3% · BB 12.2% · FIP 5.69
202622A+DET2222876.295.4622.3%11.4%—K 17.2% · BB 13.1% · FIP 6.62
2027PROJ23MLBDET1212626.126.1214.5%14.2%-0.8
2028PROJ43% MLB24MLBDET77395.815.7416.3%12.8%-0.4
2029PROJ66% MLB25MLBDET1010615.585.5117.3%12.0%-0.4
Next 3 projected WAR -1.6Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
Scouting grades · 20-80
Stuff35Control40Command35
Career WAR0 WAR median (P10 -0 / P90 3, comp-based) · star 0% · didn't stick 88%
CompsTommy Mace (age 23) · Reid Schaller (age 22) · Bryce Warrecker (age 22)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 149141vR 133
ERA6.12
FIP6.12
K%14.5%
BB%14.2%
K-BB%0.4%
Proj IP62
Value2027 · WAR
Runs saved vs league avg · 62 IP
K: -4.1 runs (Runs saved by strikeouts vs lg-avg K%)-4KBB: -4.5 runs (Runs saved by walk suppression vs lg-avg BB%)-4BBCONTACT: -4.8 runs (Runs saved on contact quality (HR suppression) vs lg)-5CONTACTSTAM: +2.8 runs (Replacement credit for innings volume)+3STAMTotal WAR: -1.11 (62 IP)-1.1WAR
-0.8-0.4-0.4-0.4-0.5-0.5-0.6-0.52728303234
Grades · Contract
Scouting Grades
STUF3535
CTRL4040
CMD3535
K†3045

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)
202117ROK MLEDSL Tigers14145925055151100%4.215.0%7.5%7.5%0.6%2.883.11—
202117ROK RAWDSL Tigers14145925055151100%4.222.0%6.0%16.0%0.4%2.882.22—
202218ROK MLEFCL Tigers1110431953418891%3.911.9%11.5%0.3%5.8%8.026.75—
202218ROK RAWFCL Tigers1110431953418891%3.917.4%9.2%8.2%4.1%8.025.21—
202319ROK MLEFCL Tigers8417831911250%2.215.6%16.6%-1.0%3.7%7.275.89—
202319ROK RAWFCL Tigers8417831911250%2.222.9%13.3%9.6%2.4%7.274.31—
202420MIX MLE2 levels16167027756234100%4.412.8%9.5%3.3%1.5%2.564.04—
202420MIX MLE2 levels16167027756234100%4.412.8%9.5%3.3%1.5%2.564.04—
202420MIX RAW2 levels16167027756234100%4.420.2%8.3%11.9%1.4%2.563.23—
202521A+ MLEWest Michigan Whitecaps25239943280461292%3.914.3%12.2%2.0%4.1%5.295.69—
202521A+ MLEWest Michigan Whitecaps25239943280461292%3.914.3%12.2%2.0%4.1%5.295.69—
202521A+ RAWWest Michigan Whitecaps25239943280461292%3.918.5%10.6%7.9%2.8%5.294.46—
202622A+ MLEWest Michigan Whitecaps222287394884519100%4.017.2%13.1%4.1%6.0%6.296.62—
202622A+ MLEWest Michigan Whitecaps222287394884519100%4.017.2%13.1%4.1%6.0%6.296.62—
202622A+ RAWWest Michigan Whitecaps222287394884519100%4.022.3%11.4%10.9%4.8%6.295.46—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202723MLBDET121262262383710100%5.214.5%14.2%0.4%3.8%6.126.12-0.8
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202824MLB MLEDET161691384634914100%5.716.3%12.8%3.5%3.7%5.815.74-0.9
202925MLB MLEDET161692389674714100%5.817.3%12.0%5.3%3.6%5.585.51-0.6
203026MLB MLEDET151592389694614100%6.117.9%11.7%6.1%3.6%5.465.42-0.5
203127MLB MLEDET151591383694514100%6.017.9%11.7%6.2%3.6%5.435.43-0.5
203228MLB MLEDET151588372664414100%5.917.8%11.9%6.0%3.7%5.485.51-0.6
203329MLB MLEDET141484355624314100%6.017.6%12.1%5.5%3.9%5.585.64-0.7
203430MLB MLEDET131379334643914100%6.119.2%11.6%7.6%4.1%5.565.55-0.6
202824MLB CTXDET773916527216100%5.616.3%12.8%3.5%3.7%5.815.74-0.4
202925MLB CTXDET10106125845319100%6.117.3%12.0%5.3%3.6%5.585.51-0.4
203026MLB CTXDET121273308553611100%6.117.9%11.7%6.1%3.6%5.465.42-0.4
203127MLB CTXDET131377325583812100%5.917.9%11.7%6.2%3.6%5.435.43-0.5
203228MLB CTXDET131378329593912100%6.017.8%11.9%6.0%3.7%5.485.51-0.5
203329MLB CTXDET131376321563912100%5.817.6%12.1%5.5%3.9%5.585.64-0.6
203430MLB CTXDET121273308593612100%6.119.2%11.6%7.6%4.1%5.565.55-0.5
▸ Career totals — MLB only (actual + projected)
Career— RAW8080478201936024075100%6.017.8%11.9%5.9%3.7%5.545.15-1.3
/ 200 IP— RAW343420084415110031100%5.917.8%11.9%5.9%3.7%5.545.15-0.6
Career— MLE968937616312381866193%3.914.6%11.4%3.2%3.8%5.035.37-4.5
/ 200 IP— MLE5147200868127993393%3.914.6%11.4%3.2%3.8%5.035.37-1.4

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 PROJECTION3.48517.4%12.2%1.445.61
Seth McClung ('09)2.28616.2%13.1%1.285.46
Ray Harrell ('35-'45, -6 WAR*)1.66619.3%*12.3%*1.40*6.15*
Blake Stein ('02)2.49517.4%13.2%1.485.41
Mac Suzuki ('02)2.39315.4%12.5%1.295.72
Jim Britton ('67-'71, -0 WAR*)1.27918.4%*11.7%*1.42*5.10*
Hal Griggs ('56-'59, -4 WAR*)1.711616.8%*11.9%*1.33*5.92*