Bryan Woo is a professional baseball pitcher currently playing for the Seattle Mariners. Born on January 30, 2000, in Oakland, California, Woo grew up in the Bay Area and developed an interest in baseball at a young age. He attended Alameda High School and later enrolled at California Polytechnic State University (Cal Poly), where he played collegiate baseball before being drafted by the Mariners in the 6th round of the 2021 MLB Amateur Draft[3][5]. Woo made his MLB debut in June 2023 and has since established himself as a promising starting pitcher. In his rookie season, he posted a 4–5 record with a 4.21 ERA and 92 strikeouts in 85 innings[7]. In 2024, despite dealing with injuries, Woo improved significantly, achieving a 9–3 record with a 2.89 ERA and 101 strikeouts in 21 starts. Notably, he led MLB starting pitchers in the lowest walk rate, walking only 2.6% of batters faced[7]. As of 2025, Woo continues to perform well, maintaining a strong record with a 4–1 win-loss ratio and a 2.84 ERA. His ability to adapt, particularly against left-handed batters, has been highlighted, showing significant improvement in his strikeout-to-walk percentage[7]. Woo's cultural identity as a Chinese American has also been noted, as he reflects on the diversity and cultural experiences that have shaped his perspective on life[4]. Woo's success and durability have made him a key asset for the Mariners' pitching staff. Despite facing injuries, he has consistently delivered significant workloads, surpassing 130 innings in both 2023 and 2024[7]. His performance has kept him in the spotlight, demonstrating his potential as a future ace in the league.