Bryan Woo
22
Seattle Mariners#22 · SP

Bryan Woo

Age 26
Contract Value $831,600/yr
Size 6' 2" · 205
Throws RHP
Bats Right
From Oakland, CA
12–10
W-L
4.01
ERA
1.10
WHIP
175
K
173.0
IP
30
GS
62P-ScoreABOVE AVG

Woo combines strong skill with above avg form. He ranks 38th among 226 qualified starters.

How P-Score works
Stats updated Oct 22, 5:05 AM ETLast game Sep 18 at COL

Season overview

ERA
4.01102nd
WHIP
1.1031st
K/9
9.164th
BB/9
2.020th
FIP
3.2725th
HR/9
0.960th
IP/start
5.8
WAR
3.917th
How good is he?
StatPlayerMLB AvgPercentile
Run Prevention5750
AVERAGE
Skill7150
STRONG
Workload6550
ABOVE AVG
Consistency6150
ABOVE AVG
Form6650
ABOVE AVG
Contact Management5150
AVERAGE

Recent form

Last 5 starts
ERA
3.074.01
▼ 0.94
K/9
9.29.1
▲ 0.1
BB/9
2.12.0
▲ 0.1
IP/start
5.95.8
▲ 0.1
Pitches/start
8988
▲ 1
·ERA improved by 0.94 over the last five starts.
·Completed six innings in three of five starts.

Game log

Last 10 starts · bar = innings completed
5.1 IP · 86 pitches
3 ER10 H · 4 K
ND
6.0 IP · 80 pitches · QS
0 ER3 H · 5 K
W
8.0 IP · 102 pitches · QS
0 ER1 H · 9 K
W
6.0 IP · 99 pitches · QS
1 ER5 H · 7 K
W
4.0 IP · 76 pitches
6 ER5 H · 5 K
L
6.0 IP · 75 pitches · QS
2 ER3 H · 5 K
W
5.0 IP · 92 pitches
0 ER3 H · 5 K
ND
7.0 IP · 91 pitches · QS
0 ER3 H · 5 K
W
5.0 IP · 91 pitches
5 ER5 H · 8 K
L
5.0 IP · 95 pitches
5 ER9 H · 5 K
L

Pitch arsenal (2026)

Usage %Velocity
  • Four-seam FB46.8%96.1 mph
  • Sinker19.3%95.9 mph
  • Slider13.9%87.1 mph
  • Sweeper11.6%84.5 mph
  • Changeup6.4%89.7 mph
  • Curveball2.0%83.0 mph

Hot / cold zones (vs RHB)

.234.324.147.353.309.231.235.234.200
  • Better than MLB avg
  • Similar to MLB avg
  • Worse than MLB avg

Monthly ERA (2026)

Minimum 1 GS

Splits

Home / away
Home (12 GS)
2.36
WHIP 0.75
Away (17 GS)
5.22
WHIP 1.36
2.86 ERA better at home
vs handedness
vs LHH
.685
vs RHH
.583
.102 OPS better vs RHH
By monthERA · IP · K
September1.4225.125
August3.2722.020
July6.4321.025
June5.9728.229
May3.0335.241
April4.0329.018
March3.006.09
Rest daysERA · WHIP · K/9
5 days (6 GS)2.430.789.5
6+ days (22 GS)4.401.188.6
Sample sizes below four starts are not shown

Career

YearTeamW-LERAIPKWHIPFIPWAR
2026SEASEA12–104.01173.01751.103.273.9
202515–72.94186.21980.933.37
20249–32.89121.11010.903.26
20234–54.2187.2931.213.98
Career4 yrs40–253.45568.25671.023.413.9

Frequently asked

What is Bryan Woo's ERA in 2026?+
4.01 across 30 starts and 173.0 innings, with a 1.10 WHIP and a 3.27 FIP. That ERA ranks 102nd among qualified starters.
When is his next start?+
No probable start has been announced.
What pitches does he throw?+
He throws four-seam fb (46.8% at 96.1 mph mph), sinker (19.3% at 95.9 mph mph), slider (13.9% at 87.1 mph mph), sweeper (11.6% at 84.5 mph mph), changeup (6.4% at 89.7 mph mph), curveball (2.0% at 83.0 mph mph).
What is his P-Score?+
62 out of 100, which we label above avg — 38th among 226 qualified starters.
How has he pitched in his last 5 starts?+
A 3.07 ERA, 9.2 K/9, 2.1 BB/9.