It’s Not Just Luis Severino’s Velocity
Luis Severino currently ranks second among all major-league pitchers in WAR. He’s third by park-adjusted ERA, he’s first by park-adjusted FIP, and he’s sixth by park-adjusted xFIP, and he’s done this while facing the seventh-toughest average opponent, among everyone with at least 50 innings. There was a time when a lot of the attention was on the development of Severino’s changeup. The changeup is there, and it’s not like Severino is afraid of it, but he’s blossomed into one of the best pitchers in either league largely on the back of his fastball and slider. Two pitches can be all you need, when said pitches are elite.
Just Tuesday, Severino blanked the Phillies over seven innings, whiffing nine without issuing a single walk. In all, 95% of his pitches were fastballs or sliders, and Severino’s 101st pitch clocked in at an even 100 miles per hour. It’s been said before that high velocity affords a pitcher a greater margin of error. That’s true, and part of the story behind Severino’s emergence simply comes down to how hard he can throw. Yet there’s more there, more that underscores how difficult Severino is for hitters. Let’s take a look at how his pitches play off of one another.