DataBaseball
2026
Bryan Woo headshot

Pitcher · 2026

Bryan Woo

Age
26
B/T
R/R
Height
6' 2"
Weight
205 lb
Number
#22
Born
January 30, 2000 in Oakland, CA, USA
MLB debut
June 3, 2023
Drafted
2021, round 6
College
Cal Poly
dbWAR
8.2
3 season(s)
IP
127.1
ERA
4.31
FIP
3.20
K/9
9.0
FIP−
77
100 = avg

Bryan Woo is a starting pitcher for the Seattle Mariners. In 2026 he struck out 127 batters over 127.1 innings across 22 appearances, 22 of them starts, going 8-8. His ERA of 4.31 was 3.3% higher than the league average of 4.18 — 13th of 15 on his team, and 286th of 467 among MLB pitchers with 20+ innings. Stripping out defence, his 3.20 FIP suggests he pitched better than his ERA shows. He missed bats on 25.1% of swings (13.3% of every pitch he threw), walked 5.2% of the batters he faced and struck out 24.3%. His 2.7 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, 2026.

FIP3.20
K/99.0
WHIP1.12
WAR2.7

Platoon splits

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

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB3072776792371.242.306.394.30823.1%
vs RHB216209484456.230.250.335.25725.9%

Pitch sequencing

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

ShowBatter
Four-seamSinkerSliderSweeperChangeupCurveball

Select a count to see exactly what Bryan Woo throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2026.

Four-Seam Fastball46.7%91295.92,28249.9%26.0%
Sinker18.8%36695.72,27748.4%12.6%
Slider15.3%29886.92,21649.0%32.3%
Sweeper11.4%22284.42,48346.8%34.7%
Changeup6.3%12389.41,95443.9%18.5%
Curveball1.5%3082.72,29933.3%30.0%
Bryan Woo'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
20262222127.188011561127274.313.201.129.01.9103772.7
20253030186.2157013761198362.943.470.939.51.771833.3
20242222121.19309639101132.893.400.907.51.071832.2

Head to head

Put Bryan Woo beside up to three others.

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Bryan Woo

Similar players

Nearest 2026 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.