Misiorowski Lights Up the Gun With Historic Velocity
Brewers’ 22‑year‑old rookie Jacob Misiorowski walked into the Bronx on Friday night and delivered one of the most electric velocity displays Major League Baseball has ever recorded from a starting pitcher.
According to Statcast, Misiorowski fired 12 pitches at 103 mph or harder, the most ever tracked by a starter in the pitch‑tracking era. That’s not a typo. Twelve. From a starter. In one outing. He held that velocity deep into his appearance, overwhelming New York hitters who looked rushed, late, and at times flat‑out stunned.
A Night That Redefined What a Starter Can Throw

The Brewers always believed Misiorowski had elite arm talent. That’s why he was a second‑round pick in 2022 and one of the most talked‑about prospects in their system. But even Milwaukee’s front office couldn’t have expected this kind of historic heat so early in his career.
Against the Yankees, Misiorowski’s fastball averaged 101.3 mph, the highest single‑game average velocity ever recorded for a starting pitcher. Not just this season. Not just for rookies. Ever.
He paired that with a slider snapping in around 90–92 mph and a curveball that gave hitters a completely different look. When a pitcher is throwing 103 with carry at the top of the zone, the breaking stuff doesn’t need to be perfect — but his was sharp enough to keep New York guessing.
The Yankees swung through 15 of his fastballs, many of them late by what looked like a full frame. Even hitters known for handling velocity couldn’t catch up. The stadium radar display became a sideshow, with fans reacting every time another 103 flashed on the board.
Command, Composure, and a Whole Lot of Confidence
Velocity alone doesn’t guarantee success. Plenty of young arms can throw hard but struggle to locate. That wasn’t the case here. Misiorowski attacked the zone early, worked ahead, and forced the Yankees to hit his pitch.
When he missed, he missed in competitive spots. When he needed a strike, he trusted the heater. When he wanted a chase, he buried the slider. The Brewers gave him a lead, and he pitched like someone determined not to give it back.
The Fastest Pitches Ever Thrown by a Starter
Statcast confirmed the magnitude of what fans witnessed. Misiorowski threw 12 pitches at 103 mph or harder, the most ever by a starting pitcher. His fastball averaged 101.3 mph, another record for a starter. Several of his pitches reached 103.5 mph, putting him in territory usually reserved for elite late‑inning relievers.
Before Friday, no starter had ever thrown more than two pitches at 103 mph in a game. He did it while working a traditional starter’s workload, not a one‑inning opener role.
A Glimpse of What Milwaukee’s Future Could Look Like
The Brewers have built their recent success on pitching development, but Misiorowski represents something different — a potential ace with overpowering stuff that plays in any ballpark, against any lineup, in any month of the season.
If he stays healthy and continues refining his command, Milwaukee suddenly has a frontline weapon who can change a postseason series on his own. Few teams can match this kind of raw velocity, and even fewer can match it from a starter who holds it deep into games.
