Sean Sullivan

P Altoona Curve
Age 26 RHP 6'1" / 195 lbs AA peak 0.5 · 2028
Overview
AAPROSPECT
ETA2029MLB%2%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202423AAPIT1513733.843.5118.7%7.2%—K 15.1% · BB 7.9% · FIP 4.36
202524MIX4 levels307683.864.3722.8%10.0%—K 19.9% · BB 8.8% · FIP 4.54
202625MIX2 levels120152.402.0322.6%6.5%—K 22.6% · BB 6.5% · FIP 2.01
2027PROJ26MLBPIT1114.724.7218.6%8.7%0.0
2028PROJ38% MLB27MLBPIT44234.704.7219.1%8.8%0.2
2029PROJ60% MLB28MLBPIT55334.734.7719.3%9.0%0.2
Next 3 projected WAR 0.4Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
Scouting grades · 20-80
Stuff45Control50Command50
Career WAR0.0 WAR median (P10 0.0 / P90 0.0, comp-based) · star 0% · didn't stick 99%
CompsAaron Northcraft (age 26) · Dakota Hawkins (age 24) · Josh Roeder (age 26)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 123115vR 107
ERA4.72
FIP4.72
K%18.6%
BB%8.7%
K-BB%10.0%
Proj IP70
Value2027 · WAR
Runs saved vs league avg · 70 IP
K: -1.8 runs (Runs saved by strikeouts vs lg-avg K%)-2KBB: -0.1 runs (Runs saved by walk suppression vs lg-avg BB%)-0BBCONTACT: -2.3 runs (Runs saved on contact quality (HR suppression) vs lg)-2CONTACTSTAM: +4.5 runs (Replacement credit for innings volume)+5STAMTotal WAR: +0.03 (70 IP)+0.0WAR
0.50.20.2272829
Grades · Contract
Scouting Grades
STUF4545
CTRL5050
CMD5050
K†4545

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 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)
202221A+ MLEGreensboro Grasshoppers20157532584271675%3.819.9%9.6%10.3%4.8%4.685.28—
202221A+ RAWGreensboro Grasshoppers20157532584271675%3.825.8%8.3%17.5%4.9%4.684.71—
202322AA MLEAltoona Curve242111447697381388%4.716.5%8.8%7.7%3.0%3.884.44—
202322AA RAWAltoona Curve242111447697381388%4.720.4%8.0%12.4%2.7%3.883.88—
202423AA MLEAltoona Curve1513733055722687%4.815.1%7.9%7.2%2.8%3.844.36—
202423AA MLEAltoona Curve1513733055722687%4.815.1%7.9%7.2%2.8%3.844.36—
202423AA RAWAltoona Curve1513733055722687%4.818.7%7.2%11.5%2.0%3.843.51—
202524MIX MLE4 levels3076828164281023%2.319.9%8.8%11.1%3.7%3.864.54—
202524MIX MLE4 levels3076828164281023%2.319.9%8.8%11.1%3.7%3.864.54—
202524MIX RAW4 levels3076828164281023%2.322.8%10.0%12.8%3.6%3.864.37—
202625MIX MLE2 levels120156214400%1.222.6%6.5%16.1%0.0%2.402.01—
202625MIX MLE2 levels120156214400%1.222.6%6.5%16.1%0.0%2.402.01—
202625MIX RAW2 levels120156214400%1.222.6%6.5%16.1%0.0%2.402.03—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202726MLBPIT1114100100%1.018.6%8.7%10.0%3.1%4.724.72+0.0
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202827MLB MLEPIT10106125849238100%6.119.1%8.8%10.3%3.2%4.704.72+0.5
202928MLB MLEPIT995523445218100%6.219.3%9.0%10.3%3.2%4.734.77+0.4
203029MLB MLEPIT885121441207100%6.319.3%9.2%10.0%3.4%4.814.88+0.3
202827MLB CTXPIT4423971993100%5.819.1%8.8%10.3%3.2%4.704.72+0.2
202928MLB CTXPIT553313927135100%6.619.3%9.0%10.3%3.2%4.734.77+0.2
203029MLB CTXPIT663615229145100%6.019.3%9.2%10.0%3.4%4.814.88+0.2
▸ Career totals — MLB only (actual + projected)
Career— RAW141492387743513100%6.619.2%9.0%10.2%3.3%4.754.42+1.0
/ 200 IP— RAW32322008441617628100%6.319.2%9.0%10.2%3.3%4.754.42+2.3
Career— MLE1015634414492591264955%3.417.9%8.7%9.2%3.4%3.984.53+1.2
/ 200 IP— MLE5933200842151732855%3.417.9%8.7%9.2%3.4%3.984.53+1.4

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 AAAltoona Curve · 10 IPFIP 1.39 → 1.81 (+0.42)K% 24.3% → 19.7%
ComponentRawPark ÷Level factor ×= MLE
K% /BF24.32%—×0.81019.70%
BB% (unintentional) /BF2.70%—×1.1002.97%
HR / BF /BF0.00%÷1.000×1.2000.00%

Factors used: pitcher AA level factors — K ×0.81, BB ×1.10, HR ×1.20. 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 1.39 → 1.81, 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).

2026 ABradenton Marauders · 5 IPFIP 2.93 → 3.64 (+0.71)K% 20.0% → 14.8%
ComponentRawPark ÷Level factor ×= MLE
K% /BF20.00%—×0.74014.80%
BB% (unintentional) /BF12.00%—×1.18014.16%
HR / BF /BF0.00%÷1.000×1.3000.00%

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 2.93 → 3.64, 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 AAAIndianapolis Indians · 41 IPFIP 4.29 → 4.81 (+0.52)K% 23.2% → 19.9%
ComponentRawPark ÷Level factor ×= MLE
K% /BF23.16%—×0.86019.92%
BB% (unintentional) /BF10.17%—×0.9009.15%
HR / BF /BF3.39%÷0.915×1.1004.08%

Factors used: pitcher AAA level factors (Triple-A 2023+ robo-zone set: walks improve on promotion) — K ×0.86, BB ×0.90, HR ×1.10. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 83).

Result: FIP 4.29 → 4.81, 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).

2025 AAAltoona Curve · 16 IPFIP 2.88 → 3.70 (+0.82)K% 24.6% → 19.9%
ComponentRawPark ÷Level factor ×= MLE
K% /BF24.56%—×0.81019.89%
BB% (unintentional) /BF7.02%—×1.1007.72%
HR / BF /BF1.75%÷0.891×1.2002.36%

Factors used: pitcher AA level factors — K ×0.81, BB ×1.10, HR ×1.20. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 78).

Result: FIP 2.88 → 3.70, 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 ABradenton Marauders · 7 IPFIP 6.93 → 9.05 (+2.12)K% 18.8% → 13.9%
ComponentRawPark ÷Level factor ×= MLE
K% /BF18.75%—×0.74013.87%
BB% (unintentional) /BF15.62%—×1.18018.44%
HR / BF /BF6.25%÷0.932×1.3008.72%

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 86).

Result: FIP 6.93 → 9.05, 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 AAAltoona Curve · 73 IPFIP 3.52 → 4.36 (+0.85)K% 18.7% → 15.1%
ComponentRawPark ÷Level factor ×= MLE
K% /BF18.69%—×0.81015.14%
BB% (unintentional) /BF7.21%—×1.1007.93%
HR / BF /BF1.97%÷0.844×1.2002.80%

Factors used: pitcher AA level factors — K ×0.81, BB ×1.10, HR ×1.20. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 69).

Result: FIP 3.52 → 4.36, 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).

2023 AAAltoona Curve · 114 IPFIP 3.89 → 4.44 (+0.55)K% 20.4% → 16.5%
ComponentRawPark ÷Level factor ×= MLE
K% /BF20.38%—×0.81016.51%
BB% (unintentional) /BF7.98%—×1.1008.78%
HR / BF /BF2.73%÷1.106×1.2002.96%

Factors used: pitcher AA level factors — K ×0.81, BB ×1.10, HR ×1.20. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 121).

Result: FIP 3.89 → 4.44, 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).

2022 A+Greensboro Grasshoppers · 75 IPFIP 4.67 → 5.28 (+0.61)K% 25.8% → 19.9%
ComponentRawPark ÷Level factor ×= MLE
K% /BF25.85%—×0.77019.90%
BB% (unintentional) /BF8.31%—×1.1509.55%
HR / BF /BF4.92%÷1.273×1.2504.84%

Factors used: pitcher A+ level factors — K ×0.77, BB ×1.15, HR ×1.25. Pitcher translation is level-wide (no per-league rows, no age adjustment); HR/BF is park-adjusted at half strength (park HR factor 155).

Result: FIP 4.67 → 5.28, 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 PROJECTION1.25919.0%8.9%1.244.74
J. C. Gutierrez ('07-'14, -0 WAR*)1.45719.8%*8.5%*1.19*4.72*
Bob Macdonald ('90-'96, 1 WAR*)1.25918.3%*9.8%*1.20*4.32*
Juan Gutierrez ('14)1.45719.4%8.4%1.044.49
Josias Manzanillo ('04)1.75720.0%10.2%1.214.71
Bill Scherrer ('82-'88, 1 WAR*)1.66220.7%*10.2%*1.19*4.44*
Randy St. Claire ('84-'94, -0 WAR*)1.35019.0%*8.4%*1.39*4.61*