Jacob Misiorowski throws fastest pitch ever by a starting pitcher

Milwaukee Brewers right‑hander Jacob Misiorowski recorded a 164.5 mph fastball, the fastest ever thrown by a starting pitcher in Major League Baseball. The pitch came in the first inning of his recent start against the Philadelphia Phillies, landing on the low‑outside corner as Kyle Schwarber swung and missed. The speed was verified by the stadium’s radar system, surpassing the previous starter record and approaching the overall MLB record of 165.8 mph set by reliever Aroldis Chapman. Misiorowski’s delivery, clocked at 164.5 mph, establishes a new benchmark for starters, though it does not eclipse Chapman’s career best.

The achievement has drawn significant attention from fans and analysts, highlighting the increasing velocity trends among pitchers and adding to Misiorowski’s rising profile in the league.