Bryan Woo Just Joined a Pitcher’s Club That Only Has Four Other Members

The Seattle Mariners have a thing for pitchers who don’t walk people. It’s kind of their whole deal. And Thursday, Bryan Woo made that point louder than ever.

Woo threw seven scoreless innings against the Baltimore Orioles, striking out nine and walking exactly one batter. He needed only 89 pitches to do it. The Orioles managed three hits and not much else. By the time Woo was done, he’d retired 21 of the first 23 guys he faced and punched out five in a row at one point. The Mariners won 5-0, and Woo improved to something like automatic this season.

But the real story came after the game. OptaSTATS posted a stat that puts Woo’s whole career into perspective.

Through his first four MLB seasons, Woo has a strikeout-to-walk ratio of 5.0. That means five K’s for every free pass. The only other pitchers in baseball history to do that over their first four years with at least 400 innings pitched? George Kirby. Shane Bieber. Masahiro Tanaka. And Tommy Bond, who was throwing in the 1870s, which is a whole different kind of insane.

Here’s the part that makes you stop. Kirby is also a Mariner. So Seattle has two of the five guys on that list, and they both came through the Mariners’ system. That’s not a coincidence. That’s an organizational philosophy that works.

Woo doesn’t have the flashiest stuff. His fastball sits 93-95 and his changeup is good but not unhittable. What he has is command so precise it borders on boring. He throws strikes, then he throws more strikes, and by the time hitters realize they’re behind in the count, it’s too late.

The Mariners as a whole are leaning on this pitching staff to carry them through the summer. Their lineup isn’t scaring anyone. But when you’ve got two guys like Woo and Kirby who can do this every fifth day, and a bullpen that’s deep and rested, you don’t need to score six runs to win.

Woo is 26. He’s already posted a 4.0 K/BB or better in each of his first four seasons. And he’s not slowing down. The Orioles found out the hard way. They’re the AL’s third-best offense by OPS and Woo made them look ordinary.

This isn’t a fluke or a hot stretch. It’s four years of elite control. And the list of company he’s keeping says everything.