Jacob Misiorowski broke the record for fastest World Series pitch with the first offering of this year’s Fall Classic, a 103.5 mph fastball from the Milwaukee Brewers’ fireball to the Tampa Bay Rays’ Yandy Diaz on Friday night.
Aroldis Chapman of the Chicago Cubs set the mark for a Series pitcher at 103.2 mph in the ninth inning of Game 2 in 2016, an offering that resulted in a groundout from Cleveland’s Coco Crisp.
Misiorowski’s first pitch, taken for a ball over the strike zone, was listed at 103.4 mph on the stadium video boards, but was 103.5 by MLB’s Statcast system.
Misiorowski’s first 10 Rays pitches were fastballs, including two singles. He threw 11 of 13 fastballs in his scoreless start, hitting 100 mph on 10 of them and averaging 101.9 mph.
A 24-year-old right-hander whose heat has wowed the sport since his debut in June 2025, Misiorowski easily surpassed the previous hitter with the first hit in the Series since tracking began in 2008. Noah Syndergaard of the New York Mets threw a 101.1-mph first-pitch home run in Kansas City. Game 3 in 2015.
Misiorowski threw 1,115 pitches at 100 mph or more this year, shattering the old record of 673 by St. Louis’ Jordan Hicks. Louis in 2018.
His fastest pitch was 105.5 mph against Pete Crow-Armstrong of the Chicago Cubs on June 27, just shy of Chapman’s regular season record of 105.8 mph for Cincinnati against San Diego on September 24, 2010.
Misiorowski hit 100 mph with 96 of 182 pitches in the Division and League Championship Series, including a 104.8 mph hit by Fernando Tatis Jr. of San Diego on the first pitch of the NLDS opener on Oct. 3. This scored a point for the fastest 1.00 to San Diegoe5. reliever Mason Miller on a called third strike against Cubs shortstop Carson Kelly in the eighth inning of a Wild Card Series 2 game last year.
Reporting by the Associated Press.
