Jacob Misiorowski again logs a 105 mph-type milestone as Brewers’ starter posts another record-setting inning

The Milwaukee Brewers’ rotation has been built on steady innings, but Jacob Misiorowski’s latest start shifted the conversation toward raw velocity and what it can do to hitters in the most leverage-heavy part of a plate appearance. According to Yahoo Sports, Misiorowski threw the four fastest pitches ever recorded by a starter in a single inning, highlighted by a pitch clocked at 105 mph.

The feat is framed as a repeat of sorts because the reporting describes Misiorowski as “once again” setting a mark for the fastest pitch ever recorded by a starting pitcher. In practical terms, it means the game’s top-end velocity for starters now appears concentrated in his hands, rather than scattered across multiple pitchers and seasons. The emphasis on one inning also points to how quickly he reached his highest-impact form, rather than topping out across a long stretch and then cooling off.

For context, MLB velocity tracking has become detailed enough that records are increasingly broken by small differences in speed and by the specific grouping of pitches that occur in a given time window. A starter setting the top mark, and doing it with multiple pitches at the top of the list in one inning, raises the bar for what teams have typically expected from pitchers beyond elite relievers. It also complicates scouting, because hitters must account for both the speed and the sequencing of multiple maximum-velocity offerings.

Brewers fans and decision-makers will also recognize the strategic angle. Starters who can consistently reach extreme velocity can shorten the margin for error for themselves, even when command is imperfect, and they can force earlier contact or more decisive swings. That matters most in the middle innings, where the lineup tends to adjust and where pitchers often face the most dangerous repeated looks.

There is also an obvious caveat in velocity-based records. Pitching success is not determined by speed alone, and the durability of a top-velocity profile depends on how often a pitcher can operate at or near peak effort while maintaining pitch quality. A record inning can be a sign of development, but it does not automatically translate into longer-term run prevention, especially if hitters can later time the release point or if pitch usage patterns change.

What to watch next is whether the Brewers’ coaching staff can turn a one-inning benchmark into a repeatable starter trend: more innings featuring multiple pitches at the top end, and clearer evidence that hitters are struggling not just to square up, but to make meaningful contact. If Misiorowski keeps stacking maximum-velocity pitches in high-leverage moments, Milwaukee’s ceiling could rise, regardless of where opponents rank that day’s matchup.