Yesavage’s delivery comes over the top with a short arm action. His pitches come out 7.08 feet off the ground on average, which is higher than any pitcher in the majors this season (about 3⁄4 of an inch higher than leaders Pete Fairbanks or Justin Verlander and over 15 inches higher than the median). That creates a serious downhill plane to the plate, which is a little unfashionable right now because flatter angles pair better with the riding four seamers that are currently dominant. Because of how short his arm action is, as well as the tallness of his delivery, he also has below average extension that takes about two thirds of an mph off the perceived velocity of his pitches. There’s always value in giving hitters an uncommon look, though, and right now they don’t see a lot of balls that bear down on them in the way Yesavage’s do.
One positive thing the delivery does is allow him to get nearly pure backspin on his fastball, which he’s thrown 94 times among 198 pitches in his most recent three outings. The pitch generates an elite 19.9 inches of induced vertical break, which is about 4” more than the typical fastball thrown equally hard in the majors (he averages 94.7mph). It’s relatively straight, with 5.3 inches of arm side run, but with his kind of vertical movement that isn’t a problem. Overall the fastball profiles as a plus pitch that should be able to miss bats and generate pop ups up in the zone.