Bryan Woo wasn’t extremely regarded when the Seattle Mariners chosen him within the sixth spherical of the 2021 draft out of Cal Poly. That’s comprehensible. The low-slot righty had a 6.36 ERA in his three collegiate seasons, together with a 6.11 mark in his injury-hampered junior yr. After present process Tommy John surgical procedure in April 2021, he made his skilled debut in ’22.
Now, the 24-year-old is displaying that Seattle’s director of pitching technique, Travis Clean, wasn’t fully out of his thoughts when he reportedly instructed members of the Mariners entrance workplace previous to the draft that “this man could be one-one for me.” Whereas it’s unlikely that Woo goes to be nearly as good or higher than all the 173 gamers drafted forward of him, his numbers have nonetheless been spectacular. Since making his large league debut in July 2023, he has a 3.60 ERA and a 3.96 FIP over 137 1/3 innings throughout his 28 begins with the Mariners. In 10 outings this yr, he’s 4-1 with a 2.54 ERA and a 3.25 FIP. It’s price noting that this success hasn’t precisely come out of nowhere. Together with 4 rehab outings this yr, Woo logged a 2.97 ERA and 162 strikeouts over 115 innings as a minor leaguer.
Woo introduced up his backstory after I requested him how he’s developed as pitcher.
“Going by means of the draft-and-scouting course of, I really feel like a variety of it was based mostly on my potential,” Woo instructed me when the Mariners performed in Cleveland final month. “I didn’t have nice outcomes on the time. It was based mostly off of, ‘He could possibly be this. It appears like he’s growing into that.’ For me, it was about believing that I might get there, that I might proceed to get higher. That’s form of the story. I wasn’t too well-known. When you take a look at in on paper, it was by no means, ‘This man is actually good.’ The numbers by no means actually confirmed that I used to be.”
Not surprisingly, Woo additionally introduced up the truth that he’d been injured when he was drafted, and the way that made for lots of uncertainty. As he put it, “I didn’t fairly know what was going to occur. It might have been a little bit greater. I might have gone loads decrease. I actually wasn’t certain.”
He did know that his repertoire wanted each refinement and enhancement. The Oakland native had a mid-90s four-seam fastball when wholesome however nothing else to jot down dwelling about. His slider, which he described as having been “OK,” was a pitch he’d throw right here and there. He additionally had a changeup, however that principally sat in his again pocket.
Growing a second heater has been particularly impactful for him. He added a two-seamer to his arsenal final yr whereas toeing the rubber for the Arkansas Vacationers.
“Final yr, earlier than I acquired known as up, our pitching coordinator got here right down to Double-A, the place I used to be at,” Woo mentioned. “He sat in on certainly one of my bullpens and mentioned, ‘Simply strive it.’ I used to be having a variety of excessive pitch depend video games — I wasn’t getting many fast outs — and he mentioned that it could possibly be a software to make use of to get some faster outs, some weaker contact. A whole lot of my recreation was strikeouts and fly balls. There weren’t many environment friendly outs, I suppose you would say. So, we tried the 2 and it has progressed from there.”
Up to now this season, Woo has thrown 51.4% four-seamers and 27.2% two-seamers, in addition to 7.2% changeups, 7.1% sweepers, and seven.0% sliders. The final of that blend, based on the righty, acts extra like a gyro when he throws it low, and extra like a cutter when he throws it towards the highest of the zone. His circle changeup is a pitch he described as having “rather less vertical and a little bit bit extra horizontal, in addition to little bit slower, than my sinker.” Requested which of his off-speed pitches he sees as his important secondary providing going ahead, he mentioned that he’s happy with the progress of all three and wouldn’t take one over the opposite.
As for his two fastballs, the 6-foot-2 Woo wasn’t inclined to choose between them both. As an alternative of selecting favorites, he described why he’s had success along with his heaters regardless of their comparatively unimpressive metrics.
“Neither one performs tremendous excessive metrically; the vertical and horizontal motion aren’t something loopy,” Woo mentioned. “I feel it’s simply my slot, form of how the ball comes out, that makes them a little bit bit completely different.”
The slot is certainly completely different. As Pitcher Listing’s Jack Foley defined final summer time, “At 4’11” off the bottom, Woo has a launch top a full foot beneath the common.”
Woo instructed me that he was extra excessive in highschool, solely to have his arm “form of decrease by itself all through school, post-surgery, and professional ball.” He claimed to have by no means purposefully dropped it down, however fairly has simply continued to throw in a approach that feels most snug. Not so snug are opposing batters. They’ve only a .220 xBA and a 2.7% barrel charge towards the low-slot righty this season. When wholesome — he missed the primary month with elbow irritation and later was on the shelf for 3 weeks with a hamstring pressure — Woo is difficult to sq. up.