| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 13 | 9 | 0 | 0 | 187.0 | 156 | 40 | 189 | 71 | 3.42 | 1.048 | 64.2 |
| 2026 | 1 | 2 | 0 | 0 | 32.0 | 22 | 6 | 26 | 8 | 2.25 | 0.875 | 107.9 |
| 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 |
| Date | News |
| 4/19/26 | Mariners slug 3 homers to support Bryan Woo’s strong outing vs. Rangers. Riding another strong outing from Bryan Woo and getting homers from Rob Refsnyder, J.P. Crawford and Randy Arozarena, the Mariners secured their second series win of the season. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 3/28/26 | Mariners build in downtime to keep Bryan Woo healthy for long haul. What lingers as one of the great hypothetical questions in Mariners history — what if Bryan Woo was healthy last October? — also bleeds into the team's outlook this year. Source: https://www.seattletimes.com/sports/mariners/marin... |
| 3/22/26 | Bryan Woo in regular-season form as Mariners down White Sox. Bryan Woo tossed six dominant innings, and Mitch Garver hit a solo home run as the Mariners earned a 4-2 win over the White Sox on Sunday night. Source: https://www.seattletimes.com/sports/mariners/bryan... |
| 3/09/26 | Bryan Woo has ‘really good outing’ for Mariners in spring training loss. Bryan Woo struck out the first four batters he faced in Monday's Cactus League loss to the Diamondbacks. "That was my brand of baseball right there," the M's pitcher said. Source: https://www.seattletimes.com/sports/mariners/bryan... |
| 3/03/26 | Bryan Woo sharp again as Mariners fall to Angels in spring training game. Bryan Woo looked sharp again, striking out four over 2 1/3 innings. Here's what he said about his outing for the Mariners on Tuesday. Source: https://www.seattletimes.com/sports/mariners/bryan... |
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