The Good and the Worse of Taijuan Walker’s Changeup
It’s obvious, now, that Taijuan Walker is going to enter the season as a member of the Mariners’ rotation. He survived an offseason of trade rumors and beat out the recently-demoted Roenis Elias, and this is the kind of thing that can happen when you’re a pitcher who allows but a single run in 25 spring innings. There was, though, a point at which it looked like Walker and Elias might share an intense competition. So Walker came out guns a’blazing, immediately throwing a fastball at 95 – 96. Some pitchers use spring training to build up arm strength. Walker began it strong.
Which makes him an interesting guy to analyze. And that, in turn, is facilitated by Walker throwing a lot of spring innings before PITCHf/x cameras. Over those innings, Walker’s allowed nine hits and four walks, to go with 24 strikeouts. It seems like it’s been something of an early breakthrough, with Walker refining his mechanics and adding some depth to a slider. It’s been clear from the day he was drafted that Walker would have a big-league-caliber fastball. Of greater importance has been a changeup, an offspeed weapon for Walker to use against lefties. It just so happens Walker has thrown plenty of changeups this month. It’s been a clear priority, for obvious reasons. What, then, is there to be learned from the evidence?