| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 11 | 5 | 0 | 0 | 148.0 | 113 | 28 | 148 | 50 | 3.06 | 0.949 | 61.6 |
| 2025 | 15 | 7 | 0 | 0 | 186.7 | 137 | 36 | 198 | 61 | 2.94 | 0.927 | 101.8 |
| 2024 | 9 | 3 | 0 | 0 | 121.3 | 96 | 13 | 101 | 39 | 2.89 | 0.898 | 62.8 |
| 2023 | 4 | 5 | 0 | 0 | 87.7 | 75 | 31 | 93 | 41 | 4.21 | 1.209 | 17.8 |
| Date | News |
| 2/13/26 | After frustrating finish last season, Mariners ace Bryan Woo brings new focus to 2026. Bryan Woo was honored with an invitation to compete for USA in the World Baseball Classic. He turned it down to “be smart” about his health and goals. Source: https://www.seattletimes.com/sports/mariners/after... |
| 11/25/25 | Mariners starter pitcher Bryan Woo among top beneficiaries of pre-arbitration bonus pool. The right-hander will get $1,540,676 as part of a $50 million annual pool distributed to 101 players. Source: https://www.seattletimes.com/sports/base1126/?utm_... |
| 10/17/25 | ALCS: Mariners’ Bryan Woo ‘felt great’ in return from injury. After being sidelined nearly a month by a pectoral strain, Bryan Woo made his return, throwing two innings of relief in the Mariners’ 6-2 ALCS win over Toronto. Source: https://www.seattletimes.com/sports/mariners/alcs-... |
| 10/15/25 | ALCS: Mariners ace Bryan Woo could end up an option out of the bullpen. The Mariners haven't formally set their pitching plans beyond Game 4 but there's a chance Bryan Woo could come out of the bullpen at some point during the ALCS. Source: https://www.seattletimes.com/sports/mariners/alcs-... |
| 10/15/25 | Mariners’ Bryan Woo eyes return in ALCS against Blue Jays. After Bryan Woo threw live batting practice Monday, a start Friday seems probable, assuming the Blue Jays can win one of the next two and force an ALCS Game 5. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 10/13/25 | ALCS: Here’s the Mariners’ plan for Bryan Woo vs. Blue Jays. Bryan Woo threw a live bullpen Monday in Toronto and was as up-beat as he has been in weeks. Here's when the Mariners are targeting his return for the playoffs. Source: https://www.seattletimes.com/sports/mariners/alcs-... |
| 10/12/25 | ALCS: Bryan Woo added to Mariners roster vs. Blue Jays. Mariners ace Bryan Woo hasn’t pitched in a game since Sept. 19 in Houston due to a pectoral strain. Source: https://www.seattletimes.com/sports/mariners/alcs-... |
| 10/11/25 | Mariners ace Bryan Woo expected to be added to ALCS roster. Mariners ace Bryan Woo is expected to be added to the Mariners roster for the franchise’s first American League Championship Series appearance since 2001. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 10/10/25 | Mariners remain ‘hopeful’ after Bryan Woo throws off mound. In what could be an encouraging step forward, Byran Woo threw off the mound in the T-Mobile bullpen on Friday afternoon, three hours before the start of ALDS Game 5. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 10/04/25 | Mariners ace Bryan Woo left off ALDS roster. Bryan Woo, out for the past two weeks with pectoral inflammation, has been left off the Mariners’ 26-man roster for the American League Division Series. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 10/02/25 | Bryan Woo’s availability for Mariners’ ALDS roster remains unclear. In an important step in his recovery from a pectoral muscle injury, Mariners starter Bryan Woo threw 15 pitches off the T-Mobile Park mound on Thursday. Source: https://www.seattletimes.com/sports/mariners/bryan... |
| 10/02/25 | ALDS: Bryan Woo fastball, Andrés Muñoz slider are key Mariners pitches. Here are five pitches from Mariners pitchers that will define Seattle's hopes this postseason, starting Saturday in the ALDS. Source: https://www.seattletimes.com/sports/mariners/alds-... |
| 10/01/25 | Mariners’ Bryan Woo to throw bullpen session; ALDS status unclear. Bryan Woo is scheduled to throw a bullpen session Thursday, his first time on a mound since exiting his start Sept. 19 due to tightness in his right pectoral muscle. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 9/28/25 | Mariners have ‘good deal of optimism’ about Bryan Woo’s playoff status. With a bye week to prepare for the ALDS, the Mariners are well positioned to line up their starting rotation exactly how they want, but Bryan Woo's availability remains in question. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 9/25/25 | Mariners’ Bryan Woo takes small step in his recovery from pec injury. With team trainers watching closely, Mariners starter Bryan Woo went through a workout Thursday, playing a light game of catch. Woo's next start will come in the playoffs. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 9/23/25 | Mariners ace Bryan Woo progressing after injury scare, but will skip next start. Bryan Woo will skip his next start after exiting Friday’s game in Houston with minor inflammation of his right pectoral muscle. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 9/21/25 | Wilson: M's Woo has 'minor' pectoral inflammation. Seattle right-hander Bryan Woo, who exited the Mariners' 4-0 win over the Houston Astros on Friday during his sixth-inning warmup pitches, has "minor inflammation" in his pectoral muscle and is listed as day-to-day, manager Dan Wilson said Saturday. Source: https://www.espn.com/mlb/story/_/id/46326800/seatt... |
| 9/20/25 | M's All-Star Woo (pec tightness) exits; MRI likely. Mariners starter Bryan Woo exited Friday night's 4-0 win over the Astros because of pectoral tightness after throwing a couple of warmup pitches in the sixth inning. Source: https://www.espn.com/mlb/story/_/id/46318172/marin... |
| 9/20/25 | M's All-Star Woo (pec tightness) exits; MRI likely. Mariners starter Bryan Woo exited Friday night's 4-0 win over the Astros because of pectoral tightness after throwing a couple of warmup pitches in the sixth inning. Source: https://www.espn.com/mlb/story/_/id/46318172/marin... |
| 9/19/25 | M's Woo exits after throwing warmup pitches in 6th. Mariners starter Bryan Woo exited Friday night's game against the Astros after throwing a couple of warmup pitches in the sixth inning. Source: https://www.espn.com/mlb/story/_/id/46318172/marin... |