Jacob Misiorowski unleashed a 103.5 MPH fastball on his very first pitch of World Series Game 1, utterly shattering the record for the fastest pitch in Fall Classic history. The young flamethrower, facing Tampa Bay’s Yandy Diaz, immediately etched his name into baseball lore on Friday, October 24, 2026. The Brewers, back in the World Series for the first time in 44 years, certainly picked a player to make a statement, and Misiorowski delivered.
The Record Books Just Got Rewritten by One Pitch
Before Misiorowski’s incredible throw, the fastest pitch ever recorded in a World Series game was Aroldis Chapman’s 103.2 MPH heater for the Cubs during the 2016 Fall Classic. That record stood for a full decade, a testament to its raw power. But Misiorowski didn’t just break it, he blew right past it with his 103.5 MPH opener. This wasn’t a random occurrence either. The previous record for fastest pitch by a *starting pitcher* in the World Series was Noah Syndergaard’s 101.1 MPH for the Mets back in 2015. Syndergaard’s pitch was the only one over 101 MPH by a starter until tonight. Misiorowski didn’t stop there, throwing several pitches of at least 101 MPH and three over 102 MPH in the first inning alone against the Rays. While pitch-tracking only goes back to 2008, it is seriously tough to imagine anyone in MLB history coming close to the kind of velocity Misiorowski or Chapman have managed.
A Season of Unmatched Velocity and Dominance
This record breaking moment didn’t come out of nowhere. Misiorowski has been an absolute force all season. He’s the projected NL Cy Young Award winner, a title he earned with a ridiculous 1.80 ERA across 30 starts in his first full season. From March straight through October, Misiorowski was flat out lethal, blowing away hitters with an otherworldly fastball. The dude averaged 100.6 MPH on his four-seamer, and get this, he threw more than a dozen pitches at 104 MPH or faster during the regular season. If you looked at the list of fastest pitches thrown in 2026, Misiorowski’s name was all over it. This Game 1 performance was just the exclamation point on a truly dominant year for the young ace.
This World Series is just getting started, and Misiorowski has already given us an unforgettable moment. You know everyone’s going to be glued to their screens for Game 2 to see if he can keep bringing that historic heat. The Fall Classic is officially on fire!
This article was created with AI assistance and published under Seattle On Tap’s editorial standards. See our Editorial Policy.
Originally reported by The Sporting News.
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