Brewers’ Misiorowski sets new benchmark for starting pitcher velocity
Milwaukee’s right-hander recorded four pitches exceeding 104 mph in a single inning, surpassing his own previous record and narrowing the gap to the all-time MLB mark held by Aroldis Chapman.

Milwaukee Brewers starting pitcher Jacob Misiorowski has established a new Major League Baseball record for the fastest pitch thrown by a starter, reaching 104.5 mph during a match against the Philadelphia Phillies. The record-breaking delivery occurred in the first inning, contributing to a five-pitch strikeout of Kyle Schwarber, who leads the league in home runs.
The specific velocity of the record-breaking pitch was 104.5 mph according to official MLB pitch data, correcting an initial broadcast measurement of 105 mph. Misiorowski recorded four pitches exceeding 104 mph in that single inning, breaking his own previous record of 103.7 mph set on the preceding Sunday.
He completed the first inning by striking out Trea Turner on four pitches and Bryce Harper on three, with his slowest fastball in the frame recorded at 102.3 mph. The 6-foot-7 right-hander thus recorded the four fastest pitches ever thrown by a starter in a single inning.
While the event places Misiorowski in proximity to the all-time MLB record of 105.8 mph held by Boston Red Sox closer Aroldis Chapman, the official data clarifies the 1.3 mph gap between the starter’s mark and the overall league record set by Chapman in 2010.
Misiorowski’s performance has positioned him as a key contender in this season’s pitching landscape, alongside Los Angeles Dodgers superstar Shohei Ohtani and Philadelphia Phillies ace Cristopher Sánchez.


