Misiorowski hits 105.5 mph, breaks own starting pitcher record
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- Jacob Misiorowski threw a 105.5 mph first-inning fastball to Pete Crow-Armstrong, breaking his own record (104.5 mph, set June 12 against Kyle Schwarber) for the fastest pitch by a starting pitcher in the tracking era.
- The 105.5 mph heater ranks as the third-fastest pitch by any pitcher on record, trailing two Aroldis Chapman offerings (105.8 in 2010, 105.7 in 2016) and matching Ben Joyce's 105.5 from 2024.
- Misiorowski went six innings with eight strikeouts but issued a season-high four walks on a season-high 107 pitches, allowing a solo homer to Seiya Suzuki — his first home run allowed in 75⅓ innings.
- The right-hander escaped a bases-loaded jam by striking out Ian Happ on a 102.8 mph fastball to end his night, before Garrett Mitchell's two-run sixth-inning homer erased a 1-0 deficit and sparked Milwaukee's six-run rally.
- Misiorowski's 1.45 ERA through 16 starts ranks third-lowest by a pitcher over the first 16 outings of a season in the past 50 years, behind Trevor Rogers (1.43 in 2024) and Nolan Ryan (1.29 in 1981).
Why it matters: Misiorowski's 105.5 mph not only resets the starting-pitcher velocity ceiling but also pairs with a 1.45 ERA that places him in historic company — putting a 24-year-old rookie squarely in the conversation as a dominant frontline arm for a Brewers team trying to hold ground in the National League. The Cubs' patient approach (four walks, high pitch count) hints at how opponents may try to neutralize him.
