Jacob Misiorowski Opens World Series With Record 103.5 Mph Fastball
Milwaukee Brewers pitcher Jacob Misiorowski set a World Series record by delivering a 103.5 mph fastball on his first pitch in the Fall Classic.

Peoria Bloomington, IL, October 23, 2026 —
Milwaukee Brewers pitcher Jacob Misiorowski set a World Series record with a 103.5 mph fastball on his first pitch in the Fall Classic, according to the information provided.
The reported mark concerns the speed of Misiorowski’s opening pitch. The summary identifies it as a World Series record, but does not specify the game, the date, the opposing team or the circumstances of the pitch beyond its being his first in the Fall Classic.
Further details about how the pitch was measured, or the previous record, were not provided. The available information also does not include Misiorowski’s subsequent pitches, his overall performance in the game or the result. Those details cannot be established from the summary alone.
The record-setting pitch was delivered by a Milwaukee Brewers pitcher in the World Series. No additional information was supplied about the Brewers’ postseason path, Misiorowski’s role on the team or the broader context of the game. The report is limited to the stated velocity and the claim that it established a World Series record.
Misiorowski’s first-pitch fastball was measured at 103.5 mph, making it the central detail in the reported milestone. The information provided does not identify any reaction from the pitcher, the team or other participants. It also does not describe what happened after the pitch. As a result, the specific game setting and the record’s comparison with earlier World Series pitches remain unspecified.
Story summarized from the original created by RONALD BLUM, Associated Press on www.centralillinoisproud.com, see more information here.
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