Players · O · Pitcher · 2025 regular season
Reese Olson
- Age
- 26
- B/T
- R/R
- Height
- 6' 1"
- Weight
- 160 lb
- Number
- #45
- Born
- July 31, 1999 in Gainesville, GA, United States
- MLB debut
- June 2, 2023
- Drafted
- 2018, round 13
- High school
- North Hall
- dbWAR
- 5.6 Regular season, 3 season(s)
- IP
- 68.2
- ERA
- 3.15
- FIP
- 3.50
- K/9
- 8.5
- FIP−
- 84 100 = avg
Reese Olson was 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 1.4 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 regular season.
WAR by season
Pitching Regular season
Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.
Separate from the regular season
Postseason Postseason
Wild Card through World Series. These games are counted on their own: none of them are in the regular-season tables, career totals, league context, leaderboards or dbWAR on this page.
Postseason pitching
| Season | Team | Round | G | GS | IP | W | L | SV | H | ER | HR | BB | SO | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 Post | DET | ALDS | 2 | 1 | 9.0 | 0 | 0 | 0 | 8 | 2 | 1 | 2 | 8 | 2.00 | 1.11 | 8.0 |
Box-score and rate statistics only. wOBA, wRC+, FIP and dbWAR are measured against a full league season, and a postseason is a few teams playing each other for a month, so they are not computed for October.
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 131 | 116 | 24 | 3 | 10 | 31 | .207 | .292 | .319 | .272 | 23.7% |
| vs RHB | 154 | 138 | 34 | 2 | 15 | 34 | .246 | .325 | .348 | .304 | 22.1% |
Pitch sequencing
What Reese Olson throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Reese Olson throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Sinker | 315 | 94.4 | 2,170 | 40.6% | 2.6% | 72 | .306 | .786 | |
| Changeup | 300 | 87.7 | 1,959 | 47.3% | 46.2% | 63 | .143 | .480 | |
| Slider | 250 | 84.3 | 2,841 | 48.4% | 44.8% | 59 | .237 | .642 | |
| Four-Seam Fastball | 225 | 94.3 | 2,324 | 47.6% | 15.5% | 52 | .250 | .676 | |
| Curveball | 64 | 79.7 | 2,458 | 26.6% | 36.8% | 10 | — | — |
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Similar players
Nearest 2025 seasons by command, run prevention and role, on rate statistics rather than totals.
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.