Here are the details of his outing: Freddy Peralta's PITCHf/x for April 3, 2019 Looks like he threw 5 pitches that exceeded 96-mph, and 1 that hit 97-mph. He had 90 total pitches that registered as fastballs (average velocity of 93-mph), but I am skeptical they correctly identified between his fastball and change-up. Either way, he was changing up his pitch speeds continually from between 89-mph to 96-mph.