Alejandro Rivera

P ACL Guardians
Age 20 RHP 5'10" / 154 lbs ROK Svc 0.0 · Ctrl thru 2037 peak 0.8 · 2031
Overview
ROKPROSPECTMiLBFA 2038
OGV OFP35OGV rank#678ETA2028MLB%0%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202417ROKDSL CLE Goryl132292.482.8622.3%8.9%—K 15.2% · BB 11.2% · FIP 3.73
202518ROKDSL CLE Mendo…1111441.022.9219.8%11.6%—K 13.4% · BB 14.5% · FIP 3.81
202619MIX2 levels1710643.662.9131.3%9.7%—K 21.6% · BB 11.9% · FIP 4.42
2027PROJ20MLBCIN——05.075.0720.1%13.0%—
2028PROJ49% MLB21MLBCIN44255.004.9221.1%11.6%0.2
2029PROJ73% MLB22MLBCIN66374.774.6422.2%10.4%0.4
Next 3 projected WAR 0.6Projected rows: MLB playing time only, park and league context applied.
ContractESTIMATED
Control thru2037Service0.0First FA2038
2027MiLB2028MiLB2029MiLB2030MiLB2031MiLB2032Pre-Arb$0.9M2033Pre-Arb$0.9M2034Pre-Arb$1.0M+3
Career WAR0.0 WAR median (P10 -0.1 / P90 3.8, comp-based) · star 2% · didn't stick 89%
CompsFelix Arronde (age 20) · Bryan Polanco (age 20) · Joshua Quezada (age 20)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 129121vR 113
ERA5.07
FIP5.07
K%20.1%
BB%13.0%
K-BB%7.1%
Proj IP38
Value2027 · WAR
Runs saved vs league avg · 38 IP
K: -0.6 runs (Runs saved by strikeouts vs lg-avg K%)-1KBB: -2.0 runs (Runs saved by walk suppression vs lg-avg BB%)-2BBCONTACT: -1.1 runs (Runs saved on contact quality (HR suppression) vs lg)-1CONTACTSTAM: +1.6 runs (Replacement credit for innings volume)+2STAMTotal WAR: -0.23 (38 IP)-0.2WAR
0.00.51.00.20.40.50.70.70.70.70.60.527282930313233343536
━ projected WAR━ paid WAR ($/8M) surplus deficit+$34M ctrl surplus
Contract
Contract ESTIMATED · service-time + WAR-based estimator (needs verification)
Status   MiLB
MLB Debut   2032
Service   0 yrs (est)
Team Control Through   2037
First FA Year   2038
YearStatusSalary Proj WAR Value Surplus
2027MiLBstill in minors · estimated debut 2032
2028MiLBstill in minors · estimated debut 2032
2029MiLBstill in minors · estimated debut 2032
2030MiLBstill in minors · estimated debut 2032
2031MiLBstill in minors · estimated debut 2032
2032Pre-Arb$0.9M+0.7$2M+$1M
2033Pre-Arb$0.9M+0.7$2M+$1M
2034Pre-Arb$1.0M+0.7$2M+$1M
2035Arb-1$1M+0.6$1M+$0.7M
2036Arb-2$2M+0.5$1M+$0.2M
2037Extbeyond projection horizon · no WAR estimate
Totals $6M $8M +$5M

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 the standard WAR scale.

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)
202417ROK MLEDSL CLE Goryl132291122510115%2.215.2%11.2%4.0%0.9%2.483.73—
202417ROK MLEDSL CLE Goryl132291122510115%2.215.2%11.2%4.0%0.9%2.483.73—
202417ROK RAWDSL CLE Goryl132291122510115%2.222.3%8.9%13.4%0.9%2.482.86—
202518ROK MLEDSL CLE Mendoza11114417234200100%4.013.4%14.5%-1.1%0.0%1.023.81—
202518ROK MLEDSL CLE Mendoza11114417234200100%4.013.4%14.5%-1.1%0.0%1.023.81—
202518ROK RAWDSL CLE Mendoza11114417234200100%4.019.8%11.6%8.1%0.0%1.022.92—
202619MIX MLE2 levels1710642688426659%3.821.6%11.9%9.8%3.0%3.664.42—
202619MIX MLE2 levels1710642688426659%3.821.6%11.9%9.8%3.0%3.664.42—
202619MIX RAW2 levels1710642688426659%3.831.3%9.7%21.6%2.2%3.662.91—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202720MLBCIN——0——————20.1%13.0%7.1%3.0%5.075.07—
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202821MLB MLECIN885021144246100%6.221.1%11.6%9.4%2.9%4.874.79+0.3
202922MLB MLECIN885021247226100%6.322.2%10.4%11.8%2.9%4.644.51+0.5
203023MLB MLECIN885121550216100%6.423.0%9.7%13.3%2.8%4.454.32+0.6
203124MLB MLECIN885121751206100%6.423.6%9.2%14.4%2.8%4.304.20+0.7
203225MLB MLECIN885121451196100%6.324.0%8.9%15.1%2.8%4.194.12+0.8
203326MLB MLECIN885121552196100%6.424.2%8.9%15.3%2.8%4.144.10+0.8
203427MLB MLECIN885021051196100%6.224.2%8.9%15.2%2.9%4.144.14+0.7
203528MLB MLECIN884720048186100%5.924.0%9.1%15.0%3.0%4.194.22+0.7
203629MLB MLECIN774418544176100%6.223.8%9.3%14.5%3.1%4.294.35+0.5
202821MLB CTXCIN442510622123100%6.221.1%11.6%9.4%3.2%5.004.92+0.2
202922MLB CTXCIN663715635165100%6.222.2%10.4%11.8%3.1%4.774.64+0.4
203023MLB CTXCIN774318242186100%6.123.0%9.7%13.3%3.1%4.574.44+0.5
203124MLB CTXCIN884619446186100%5.823.6%9.2%14.4%3.0%4.424.32+0.7
203225MLB CTXCIN884619447176100%5.824.0%8.9%15.1%3.0%4.314.24+0.7
203326MLB CTXCIN884719848186100%5.924.2%8.9%15.3%3.0%4.264.22+0.7
203427MLB CTXCIN884719848186100%5.924.2%8.9%15.2%3.1%4.274.27+0.7
203528MLB CTXCIN774519046176100%6.424.0%9.1%15.0%3.2%4.324.35+0.6
203629MLB CTXCIN774217742176100%6.023.8%9.3%14.5%3.4%4.434.49+0.5
▸ Career totals — MLB only (actual + projected)
Career— RAW6262377159337415050100%6.123.5%9.4%14.1%3.1%4.454.02+6.2
/ 200 IP— RAW33332008441987926100%6.123.5%9.4%14.1%3.1%4.454.02+3.3
Career— MLE41231375529869956%3.317.8%12.6%5.2%1.6%2.564.09+5.7
/ 200 IP— MLE60332008041431011356%3.317.8%12.6%5.2%1.6%2.564.09+2.6

How the minor-league lines were translated

One row per minor-league stint. Open a row to see each step: the raw rate, the park adjustment, the league/level factor, the age adjustment (hitters) and the resulting MLE rate. Factors are the same ones listed on the MLE Factors page.

2026 ROKACL Guardians · 48 IPFIP 1.67 → 3.13 (+1.46)K% 35.9% → 24.4%
ComponentRawPark ÷Level factor ×= MLE
K% /BF35.90%—×0.68024.41%
BB% (unintentional) /BF8.21%—×1.25010.26%
HR / BF /BF1.03%÷1.000×1.4001.44%

Factors used: pitcher ROK level factors — K ×0.68, BB ×1.25, HR ×1.40. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 100).

Result: FIP 1.67 → 3.13, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).

2026 ADaytona Tortugas · 16 IPFIP 6.22 → 7.86 (+1.64)K% 19.2% → 14.2%
ComponentRawPark ÷Level factor ×= MLE
K% /BF19.18%—×0.74014.19%
BB% (unintentional) /BF13.70%—×1.18016.16%
HR / BF /BF5.48%÷1.000×1.3007.12%

Factors used: pitcher A level factors — K ×0.74, BB ×1.18, HR ×1.30. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 100).

Result: FIP 6.22 → 7.86, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).

2025 ROKDSL CLE Mendoza · 44 IPFIP 2.90 → 3.81 (+0.90)K% 19.8% → 13.4%
ComponentRawPark ÷Level factor ×= MLE
K% /BF19.77%—×0.68013.44%
BB% (unintentional) /BF11.63%—×1.25014.53%
HR / BF /BF0.00%÷0.940×1.4000.00%

Factors used: pitcher ROK level factors — K ×0.68, BB ×1.25, HR ×1.40. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 88).

Result: FIP 2.90 → 3.81, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).

2024 ROKDSL CLE Goryl · 29 IPFIP 2.84 → 3.73 (+0.90)K% 22.3% → 15.2%
ComponentRawPark ÷Level factor ×= MLE
K% /BF22.32%—×0.68015.18%
BB% (unintentional) /BF8.93%—×1.25011.16%
HR / BF /BF0.89%÷1.366×1.4000.92%

Factors used: pitcher ROK level factors — K ×0.68, BB ×1.25, HR ×1.40. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 173).

Result: FIP 2.84 → 3.73, computed from the rates in the table with the same formula before and after. The MLE line is not regressed to the mean — regression is applied when seasons are blended into a projection (how).

Career Comps

Completed MLB careers (no pro action in 2+ yrs) whose totals — actual + projected — most resemble this player's. Pool: 1,234 reliever careers (754 from 1990-2025 + 480 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 PROJECTION2.44823.1%9.8%1.124.41
Jason Grilli ('17)3.45323.4%9.8%1.004.22
Buck Farmer ('24)2.65121.6%10.5%1.244.71
Stan Belinda ('00)3.46121.3%9.9%1.134.12
Xavier Hernandez ('89-'98, 3 WAR*)3.46723.9%*9.1%*1.12*4.20*
Tony Fossas ('88-'99, 2 WAR*)2.14221.9%*9.3%*0.99*3.88*
Rob Murphy ('85-'95, 6 WAR*)3.16925.2%*9.2%*1.07*3.94*