2025 Stats
W-L
8-4
ERA
2.77
WHIP
0.96
K
104
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
Woo's 2024 season was an extension of his professional resume: impressive stints disrupted by injury. Woo required an internal brace procedure after his collegiate career in 2021, but reached the majors in 2023 and worked 131.2 innings while skipping over Triple-A in the process. The 2024 season saw him pitch nearly the same amount of innings between the majors and a minor league rehab assignment due to a mid-summer hamstring injury that preceded a forearm discomfort scare in mid-June. Woo throws five different pitches to both lefties and righties, with his sweeper being the deadliest of them all. Woo mainly used the sweeper to neutralize righties (.100 avg, 42 percent whiff rate) while using his changeup to lefties (.186 avg, 21 percent whiff rate), which helped his four-seam fastball (.218 avg, 27 percent whiff rate) play up extremely well. The pieces are here for Woo to take a step forward in 2025 like the other starters around him have recently done, but his health troubles need to get out of the way for him to fully realize his potential. Read Past Outlooks
Signed a one-year contract with the Mariners in March of 2025.
Eight Ks in six scoreless innings
Woo (8-4) earned the win Friday against the Pirates, giving up no runs on three hits and two walks in six innings. He struck out eight.
Analysis
Woo continued to rack up punchouts Friday, retiring at least eight by way of strikeout for his third start in a row. The 25-year-old right-hander has remarkably tossed at least six innings in each of his first 17 outings of the season, and three of his last four appearances have come without an earned run on his ledger. Woo holds a superb 2.77 ERA, 0.96 WHIP and 104:19 K:BB across 107.1 innings, and he's next set for a tough test against the Yankees in the Bronx.
Woo continued to rack up punchouts Friday, retiring at least eight by way of strikeout for his third start in a row. The 25-year-old right-hander has remarkably tossed at least six innings in each of his first 17 outings of the season, and three of his last four appearances have come without an earned run on his ledger. Woo holds a superb 2.77 ERA, 0.96 WHIP and 104:19 K:BB across 107.1 innings, and he's next set for a tough test against the Yankees in the Bronx.
Pitching Stats
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2025 MLB Game Log
2025
2024
2023
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
90
Last 10 Games
90
Last 5 Games
89
How many pitches does Bryan Woo generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does Bryan Woo generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
-19%
BAA vs RHP
2025
-11%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .239 | 132 | 43 | 140 | 27 | |||
| Since 2023vs Right | .193 | 166 | 20 | 115 | 14 | |||
| 2025vs Left | .224 | 45 | 12 | 44 | 10 | |||
| 2025vs Right | .199 | 59 | 7 | 40 | 4 | |||
| 2024vs Left | .222 | 52 | 8 | 53 | 8 | |||
| 2024vs Right | .200 | 49 | 5 | 43 | 6 | |||
| 2023vs Left | .283 | 35 | 23 | 43 | 9 | |||
| 2023vs Right | .179 | 58 | 8 | 32 | 4 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2023
-35%
ERA at Home
2025
-48%
ERA at Home
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 2.47 | 0.87 | 138.2 | 9.2 | 1.6 | ||||
| Since 2023Away | 3.80 | 1.11 | 177.2 | 8.0 | 1.9 | ||||
| 2025Home | 1.80 | 0.82 | 45.0 | 8.2 | 2.0 | ||||
| 2025Away | 3.47 | 1.06 | 62.1 | 9.1 | 1.3 | ||||
| 2024Home | 2.47 | 0.77 | 58.1 | 8.5 | 0.9 | ||||
| 2024Away | 3.29 | 1.02 | 63.0 | 6.6 | 1.0 | ||||
| 2023Home | 3.31 | 1.10 | 35.1 | 11.5 | 2.3 | ||||
| 2023Away | 4.82 | 1.28 | 52.1 | 8.3 | 3.8 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Bryan Woo compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
5.47K/9
8.7BB/9
1.6HR/9
1.2Fastball
95.4 mphERA
2.77WHIP
0.96BABIP
.261GB/FB
1.01Left On Base
81.5%Exit Velocity
82.7 mphBarrels/BBE
5.8%Spin Rate
2216 rpmBalls Hit 95+ MPH
23.4%Swinging Strike
12.6%Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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2024 Fantasy Outlook
A sixth-round pick in 2021, Woo debuted in June to little fanfare. He ended up taking the ball 18 times for the Mariners around a stint on the injured list with right forearm inflammation, and Woo pitched well enough to position himself as the club's fifth starter -- at least tentatively. Woo throws the kitchen sink at opposing hitters (four-seamer, sinker, cutter, slider, changeup) and it's all helped by the extension he gets on his throws. His strikeout rate was relatively modest at 25.1%, but his minor-league K rates suggest there is room for growth in that department. He was bit by the long ball occasionally, and it's possible Seattle brings in another starter to two this winter to bump Woo down the depth chart. He's not assured of a starting role to begin 2024, but Woo will likely be needed for a good number of starts either way.
More Fantasy News
Strikes out nine in no-decision
Woo did not factor into the decision in Saturday's 3-2 extra-inning loss to the Rangers, allowing two unearned runs on five hits and two walks with nine strikeouts over six innings.
Analysis
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Cruises to seventh win
Woo (7-4) picked up the win Monday at Minnesota, allowing two runs on six hits and one walk over six innings. He struck out nine.
Analysis
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Seven innings of one-hit ball
Woo (6-4) recorded the win Tuesday against the Red Sox, giving up one hit and two walks in seven scoreless innings. He struck out six.
Analysis
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Allows two homers in loss
Woo (5-4) took the loss against the Diamondbacks on Wednesday, allowing five runs on seven hits and one walk with three strikeouts over six innings.
Analysis
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Falls to Baltimore
Woo (5-3) took the loss Thursday against the Orioles, allowing four runs on four hits and two walks over six innings. He struck out six.
Analysis
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Latest Fantasy Rumors
Potential trade piece?
Woo has been mentioned in trade talks with the White Sox as the Mariners are attempting to acquire Dylan Cease, per Bob Nightengale of USA Today.
Analysis
The right-hander would be the centerpiece of a potential trade, with Bryce Miller also being mentioned as a possible centerpiece. Woo delivered a solid rookie campaign last season with a 4.21 ERA, 1.21 WHIP and 93:31 K:BB over 87.2 innings.
The right-hander would be the centerpiece of a potential trade, with Bryce Miller also being mentioned as a possible centerpiece. Woo delivered a solid rookie campaign last season with a 4.21 ERA, 1.21 WHIP and 93:31 K:BB over 87.2 innings.