Mat Olsen

P ACL Giants
Age 27 RHP 5'11" / 185 lbs ROK
Overview
ROKPROSPECT
MLB%0%
YearAgeLvl / TeamGGSIPERAFIPK%BB%WARMLE rates
202323MIX2 levels410565.142.1734.3%6.9%—K 26.8% · BB 7.9% · FIP 3.24
202424AASF350474.023.0819.9%8.7%—K 16.1% · BB 9.5% · FIP 3.58
202525MIX2 levels7096.232.5218.9%8.1%—K 18.9% · BB 8.1% · FIP 2.53
202626No MLB games played
2027PROJ27MLBSF——04.524.5220.7%9.3%—
2028PROJ36% MLB28MLBSF8084.554.5820.8%9.5%-0.0
Next 2 projected WAR -0.0Projected rows: MLB playing time only, park and league context applied.
Contract
No contract data on file.
CompsC.C. Lee (age 27) · Michael Dimock (age 27) · Neil Wagner (age 29)
2027 FULL-SEASON PROJECTIONrates below = full-season projection
showingPROJ
wRC+ AGAINSTvL 119111vR 103
ERA4.52
FIP4.52
K%20.7%
BB%9.3%
K-BB%11.4%
Proj IP28
Value2027 · WAR
Runs saved vs league avg · 28 IP
K: -0.3 runs (Runs saved by strikeouts vs lg-avg K%)-0KBB: -0.2 runs (Runs saved by walk suppression vs lg-avg BB%)-0BBCONTACT: -0.6 runs (Runs saved on contact quality (HR suppression) vs lg)-1CONTACTSTAM: +1.2 runs (Replacement credit for innings volume)+1STAMTotal WAR: +0.01 (28 IP)+0.0WAR
0.00.02728
Grades · Contract
Scouting Grades
K†5050

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)
202121ROK MLEACL Giants Orange30395000%1.055.6%0.0%55.6%0.0%0.00-1.59—
202121ROK RAWACL Giants Orange30395000%1.055.6%0.0%55.6%0.0%0.00-0.23—
202222MIX MLE2 levels36058255832510%1.624.8%11.3%13.5%0.4%3.412.68—
202222MIX RAW2 levels36058255832510%1.632.5%9.8%22.7%0.4%3.411.76—
202323MIX MLE2 levels41056245841750%1.426.8%7.9%18.9%2.6%5.143.24—
202323MIX RAW2 levels41056245841750%1.434.3%6.9%27.3%2.0%5.142.17—
202424AA MLERichmond Flying Squirrels35047196391720%1.316.1%9.5%6.6%1.2%4.023.58—
202424AA MLERichmond Flying Squirrels35047196391720%1.316.1%9.5%6.6%1.2%4.023.58—
202424AA RAWRichmond Flying Squirrels35047196391720%1.319.9%8.7%11.2%1.0%4.023.08—
202525MIX MLE2 levels709377300%1.218.9%8.1%10.8%0.0%6.232.53—
202525MIX MLE2 levels709377300%1.218.9%8.1%10.8%0.0%6.232.53—
202525MIX RAW2 levels709377300%1.218.9%8.1%10.8%0.0%6.232.52—
▸ 2027 season — projected remainder (no 2027 stats recorded)
202727MLBSF——0——————20.7%9.3%11.4%2.9%4.524.52—
▸ Career projection (2028+) — MLB context, MLB playing time (IP × MLB%)
202828MLB MLESF220239720930%1.020.8%9.5%11.4%3.0%4.554.58-0.0
202828MLB CTXSF808347310%1.020.8%9.5%11.4%3.0%4.554.58-0.0
▸ Career totals — MLB only (actual + projected)
Career— RAW808357310%1.020.8%9.5%11.4%3.0%4.554.21+0.0
/ 200 IP— RAW190020084416872240%1.120.8%9.5%11.4%3.0%4.554.21+0.8
Career— MLE122017374217370100%1.423.3%9.4%13.8%1.3%4.223.05-0.0
/ 200 IP— MLE141020085920081110%1.423.3%9.4%13.8%1.3%4.223.05-0.1

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.

2025 ROKACL Giants · 6 IPFIP 0.69 → 1.46 (+0.77)K% 28.6% → 19.4%
ComponentRawPark ÷Level factor ×= MLE
K% /BF28.57%—×0.68019.43%
BB% (unintentional) /BF0.00%—×1.2500.00%
HR / BF /BF0.00%÷1.128×1.4000.00%

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 126).

Result: FIP 0.69 → 1.46, 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 AARichmond Flying Squirrels · 47 IPFIP 3.08 → 3.58 (+0.50)K% 19.9% → 16.1%
ComponentRawPark ÷Level factor ×= MLE
K% /BF19.90%—×0.81016.12%
BB% (unintentional) /BF8.67%—×1.1009.54%
HR / BF /BF1.02%÷1.062×1.2001.15%

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 112).

Result: FIP 3.08 → 3.58, 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 A+Eugene Emeralds · 37 IPFIP 1.78 → 2.76 (+0.98)K% 36.3% → 28.0%
ComponentRawPark ÷Level factor ×= MLE
K% /BF36.31%—×0.77027.96%
BB% (unintentional) /BF8.28%—×1.1509.52%
HR / BF /BF1.27%÷1.076×1.2501.48%

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 115).

Result: FIP 1.78 → 2.76, 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 AARichmond Flying Squirrels · 19 IPFIP 2.96 → 4.11 (+1.16)K% 30.7% → 24.9%
ComponentRawPark ÷Level factor ×= MLE
K% /BF30.68%—×0.81024.85%
BB% (unintentional) /BF4.55%—×1.1005.00%
HR / BF /BF3.41%÷0.906×1.2004.52%

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 81).

Result: FIP 2.96 → 4.11, 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+Eugene Emeralds · 41 IPFIP 2.23 → 3.09 (+0.86)K% 31.1% → 23.9%
ComponentRawPark ÷Level factor ×= MLE
K% /BF31.05%—×0.77023.91%
BB% (unintentional) /BF11.58%—×1.15013.32%
HR / BF /BF0.53%÷1.120×1.2500.59%

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 124).

Result: FIP 2.23 → 3.09, 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 ASan Jose Giants · 17 IPFIP 0.57 → 1.48 (+0.92)K% 36.9% → 27.3%
ComponentRawPark ÷Level factor ×= MLE
K% /BF36.92%—×0.74027.32%
BB% (unintentional) /BF4.62%—×1.1805.45%
HR / BF /BF0.00%÷1.063×1.3000.00%

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 113).

Result: FIP 0.57 → 1.48, 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 PROJECTION0.32620.8%9.4%1.154.53
Yency Almonte ('24)1.14522.5%9.9%1.134.44
Sam Long ('25)1.14219.5%9.7%1.284.65
Kevin Quackenbush ('21)1.05221.0%9.2%1.044.41
Kevin Hickey ('81-'91, 0 WAR*)1.24717.7%*10.2%*1.10*4.27*
Bob Macdonald ('90-'96, 1 WAR*)1.25918.3%*9.8%*1.20*4.32*
Ed Vosberg ('86-'02, 1 WAR*)1.24721.0%*9.6%*0.86*4.06*