Milwaukee Brewers right-hander Jacob Misiorowski threw 10 pitches exceeding 102 mph in the first inning of a Friday game against the New York Yankees [1].
This performance establishes a new velocity benchmark for starting pitchers, pushing the physical limits of fastball speed during the opening frame of a professional game.
Misiorowski recorded a top velocity of 103.6 mph during the outing [1]. While some reports indicate all 10 of his first-inning pitches reached at least 103 mph [2], other data suggests a range between 102.4 mph and 103.6 mph [1]. Regardless of the specific threshold, the stretch represents the fastest first inning ever tracked for a starter [5].
The outing was part of the first game in a three-game series [2]. Misiorowski's dominance extended beyond the first inning, as he recorded 11 strikeouts in a game where the Brewers blanked the Yankees [4].
Tracking data highlights the rarity of this velocity sustained over a single inning. Misiorowski threw five of the fastest pitches ever recorded for a starter in a first inning [5]. Additionally, he threw seven of the fastest pitches by any starter against the New York Yankees franchise [6].
The Brewers' right-hander used the high-velocity approach to stifle the Yankees' lineup from the start. This level of heat is seldom seen from starters, who typically manage their energy over multiple innings rather than peaking immediately in the first.
“Misiorowski recorded a top velocity of 103.6 mph during the outing.”
The ability to maintain triple-digit velocity across an entire inning as a starter suggests a shift in pitching profiles. By combining the raw speed typically reserved for late-inning relievers with the workload of a starter, Misiorowski creates a timing disruption for hitters that is statistically unprecedented in the first inning of a game.
