DataBaseball
2026
Reese Olson headshot

Pitcher · 2025

Reese Olson

Age
26
B/T
R/R
Height
6' 1"
Weight
160 lb
Number
#45
Born
July 31, 1999 in Gainesville, GA, USA
MLB debut
June 2, 2023
Drafted
2018, round 13
High school
North Hall
dbWAR
3.5
2 season(s)
IP
68.2
ERA
3.15
FIP
3.50
K/9
8.5
FIP−
84
100 = avg

Reese Olson is a starting pitcher for the Detroit Tigers. In 2025 he struck out 65 batters over 68.2 innings across 13 appearances, 13 of them starts, going 4-4. His ERA of 3.15 was 24.4% lower than the league average of 4.16 — 6th of 16 on his team, and 146th of 542 among MLB pitchers with 20+ innings. Stripping out defence, his 3.50 FIP suggests that his ERA had some help behind him. He missed bats on 29.7% of swings (13.2% of every pitch he threw), walked 8.8% of the batters he faced and struck out 22.8%. His 1.2 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2025.

FIP3.50
K/98.5
WHIP1.21
WAR1.2

Platoon splits

How left- and right-handed hitters fare against him.

Opponent batting by the side the hitter bats from, 2025. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB1311162431031.207.292.319.27223.7%
vs RHB1541383421534.246.325.348.30422.1%

Pitch sequencing

What Reese Olson throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter
SinkerChangeupSliderFour-seamCurveball

Select a count to see exactly what Reese Olson throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2025.

Sinker27.2%31594.42,17040.6%2.6%
Changeup25.9%30087.71,95947.3%46.2%
Slider21.6%25084.32,84148.4%44.8%
Four-Seam Fastball19.4%22594.32,32447.6%15.5%
Curveball5.5%6479.72,45826.6%36.8%
Reese Olson's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters.

Pitching

Standard and advanced, by season.

Trend
2025131368.2440582465253.153.501.218.53.376841.2
20242222112.148010044101333.533.171.188.12.686782.3

Head to head

Put Reese Olson beside up to three others.

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Reese Olson

Similar players

Nearest 2025 seasons by command, run prevention and role, on rate statistics rather than totals.

How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.