Velocity Peaks at 103.6 MPH in Record-Setting Outing
Jacob Misiorowski of the Milwaukee Brewers unleashed a barrage of high-speed pitches against the New York Yankees earlier today, reaching a blistering 103.6 mph on his fastball. This performance marks the fastest tracked pitches by a starting pitcher in the Statcast era. Specifically, in the first inning alone, all ten of his pitches registered at or above 102.4 mph. Three of those pitches hit the 103.6 mph mark.
Misiorowski's electric arm continued through six shutout innings, where he struck out a season-high 11 batters, allowing just two hits and two walks. He departed the game with his team holding a comfortable 5-0 lead.
His previous outing against Washington saw him throw 43 pitches exceeding 100 mph over 5 1/3 shutout innings. In his start today, a remarkable 41 of his 95 pitches surpassed the 100 mph threshold, bringing his season total to 193 such pitches across eight starts.
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Record-Breaking First Inning
Misiorowski's second pitch to Aaron Judge, clocked at 103.5 mph, set a new benchmark. In total, he threw nine pitches at 103 mph or higher within the first two innings, culminating in ten such pitches overall. His first inning against the Yankees was a 1-2-3 frame with two strikeouts on only 10 pitches, all exceeding 102 mph. This concentration of extreme velocity in a single inning surpasses the total number of 103-plus mph pitches thrown by 17 other MLB teams combined during the pitch-tracking era.
Historical Context and Broader Performance
This recent display of velocity is not an isolated event for the young pitcher. Last October, during a postseason game, Misiorowski threw seven pitches at 103+ mph, the most in a postseason game within the pitch-tracking era. He was shifted to a multi-inning bullpen role for that postseason.
His performance in May of last year also highlighted his growing velocity. In a start on May 15, 2025, he touched 100+ mph nine times and averaged 98.3 mph on his fastball over seven innings, allowing one earned run. At that time, he was considered MLB Pipeline's No. 72 overall prospect.
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Beyond raw velocity, Misiorowski has been developing his arsenal. Reports from May 15, 2025, noted his addition of a changeup to neutralize left-handed hitters. He also mixed in a slider-curveball combination with his four-seamer. In that May start, he demonstrated an ability to escape high-leverage situations, using his velocity when the game was tied with runners on base.
His regular season statistics prior to the postseason last year included a 5-3 record with a 4.36 ERA, 87 strikeouts, and a 1.24 WHIP over 66 innings. His postseason debut saw him cover three scoreless innings, striking out four and allowing one hit.
