American baseball player (born 2000)
Bryan Joseph Woo (born January 30, 2000) is an American professional baseball pitcher for the Seattle Mariners of Major League Baseball (MLB). He made his MLB debut in 2023.
Amateur career.
Woo attended Alameda High School in Alameda, California, where he played on their baseball team. As a senior in 2018, he went 8-2 with a 1.25 earned run average (ERA) while hitting .422. He was named the player of the year in the West Alameda County Conference Foothill Division. That summer, he played in the Alaska Baseball League with the Peninsula Oilers. 
After high school, Woo enrolled at Cal Poly San Luis Obispo to play college baseball for the Cal Poly Mustangs. As a freshman in 2019, he pitched to an 8.75 ERA over ;templatestyles src="Fraction/styles.css" / ;23+2⁄3 innings. He returned to play for the Oilers that summer. He pitched only ;templatestyles src="Fraction/styles.css" / ;17+2⁄3 innings in 2020 before the college baseball season was cancelled due to the COVID-19 pandemic. In 2021, he compiled a 6.11 ERA over 28 innings before undergoing Tommy John surgery and missing the rest of the season. Woo started only six of the 31 games he pitched in college, finishing his college tenure with a 4–7 record, one save, 6.49 ERA, and 89 strikeouts in ;templatestyles src="Fraction/styles.css" / ;69+1⁄3 innings.
Professional career.
Woo was selected by the Seattle Mariners in the sixth round with the 174th overall selection of the 2021 Major League Baseball draft. He signed with the Mariners for $318,200, slightly above the $286,500 slot value of the Mariners' pick. He made his professional debut in 2022 with the Arizona Complex League Mariners and was promoted to the Low-A Modesto Nuts in mid-June and then the High-A Everett AquaSox at the end of July. Over 16 starts for the three clubs, Woo posted a 1–4 record with a 4.11 ERA and 84 strikeouts in 57 innings. He played in the Arizona Fall League for the Peoria Javelinas after the season. 
Woo started 2023 with the Double-A Arkansas Travelers. In nine starts, Woo had a 3–2 record and 2.05 ERA with 59 strikeouts in 44 innings pitched. On June 2, 2023, the Mariners announced that Woo would be promoted to the major leagues to start the following day against the Texas Rangers. Starting in place of Marco Gonzales, Woo had one of his worst starts of the season, allowing six runs in two innings. He won his first MLB game in his fourth start, besting the New York Yankees on June 22. He finished his rookie season with a 4–5 record and 4.21 ERA, striking out 92 batters in ;templatestyles src="Fraction/styles.css" / ;87+2⁄3 innings.
Despite dealing with several injuries, Woo improved on the mound in 2024. He began the season on the 10-day injured list with elbow inflammation. He made his first start on May 10. In his first six starts, he posted a 1.07 ERA, the lowest in Mariners history to begin a season. He was scratched from his next start on June 11 and made two more starts, earning losses in both outings, before returning to the injured list on June 25 with a hamstring injury. He was activated on July 12, resuming his turn in the Mariners rotation. He finished the 2024 season with a 9–3 record and 2.89 ERA, striking out 101 batters in ;templatestyles src="Fraction/styles.css" / ;121+1⁄3 innings over 21 starts, all improvements from his rookie season. He was the best MLB starting pitcher at avoiding base on balls in 2024, walking 2.6 percent of batters faced.
Personal life.
Bryan Woo's parents are Clayton and Hilary Woo. As a child, Woo was a fan of the San Francisco Giants, and his favorite player was Brandon Crawford.
References.
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