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What to Expect from Brewers Pitcher Jacob Misiorowski

Originally posted on New Baseball Media
By Chris Studley | Last updated Jun 10, 2025 5:58 PM ET

In what’s been a strong 2025 season for Brewers pitching prospect Jacob Misiorowski, the right-hander has reached the next stage of his development. Milwaukee is reportedly promoting the highly-touted prospect for his MLB debut this week against the Cardinals.

A Look at Misiorowski

The Brewers snagged Jacob Misiorowski out of junior college in 2022, in the second round of that year’s draft. At the time, the LSU commit was an impressive force thanks to a power fastball. Milwaukee had to pay to get him, as the Brewers gave the righty $2.35MM — the highest among their picks from that year — to forego Baton Rouge.

Thus far, the gamble paid off. Misiorowski quickly developed into an elite pitching arm, and he put up strong results almost immediately. During the 2023 season, Misiorowski struck out 110 batters over 71.1 IP, along with a .169 opponents’ batting average. Last season, the Brewers prospect struck out 127 over 97.1 IP, moving all the way up to Triple-A.

This season with Nashville (AAA), Misiorowski struck out 80 batters over 63 innings. Triple-A batters have been unable to touch him, as opposing hitters this season only hit .175 against him. And among 253 recorded plate appearances, only five hit balls (2.0) off him were considered barrels.

From a physical standpoint, Misiorowski has it all. Between the long reach & plane, along with the pure strength, Misiorowski can overwhelm hitters. The 23-year-old’s extension can regularly exceed 7.5 inches on the mound, well above the MLB average.

That extension only makes a plus-plus fastball even more potent. Misiorowski hit as high as 103 MPH this season in Nashville and routinely hit triple-digits. The result? A pure swing-and-miss pitch that, when he can command it, can beat hitters upstairs with ease.

Jacob Misiorowski Whiff 2025 AAA Via New Baseball Media

His fastball can also carry up in the zone significantly.

Now aside from that pitch, Misiorowski also has other weapons at his disposal. Those include a mid-90s cut/slider, a changeup with separation from the fastball and can sit in the lower-90s, along with a mid-80s curveball.

Jacob Misiorowski Pitch Movement 2025 AAA: Everything else in his arsenal plays off the fastball, a truly overwhelming pitch. Via New Baseball Media

All of those pitches can get swings-and-misses. His curveball had a 42.4% Whiff% this season in Triple-A, while the changeup was 29% this season. The cut/slider had slighty less at 25%

Command, however, has been the main sticking point for Misiorowski. The right-hander has an involved delivery, one with a big arm swing and a lot of moving parts for a pitcher of his size.

Misiorowski walked 60 batters over 97.1 IP in 2024 (5.6 BB/9). It’s been cut down somewhat in 2025, to 4.4 BB/9. Walks will almost likely be a part of his game but the draw is his stuff, which may mask some of those issues.

Per ESPN, Jacob Misiorowski will make his Brewers & MLB debuts on June 12 against the Cardinals.

Analysis

Regardless of the command problems, Misiorowski remains an elite pitching prospect. The stuff is nasty, pure, and among the best one will find at the Minor League level.

Now, comes the hard part: whether he’ll be able to keep himself together against MLB hitting.

Misiorowski’s promotion comes at a critical juncture for the Brewers. Milwaukee, as of June 10, sat five and a half games out of first in the NL Central and three games back in the Wild Card race. However, their rotation hasn’t been a problem thus far.

Rookie right-hander Chad Patrick (139 ERA+) and ace Freddy Peralta (146 ERA+) have been excellent. Quinn Priester, acquired from the Red Sox early on in the season, fit in exceptionally well thanks to a strong defense behind him, while Jose Quintana has given the Brewers quality innings.

The one issue for the Brewers’ rotation this season has been trying to fill out the #5 spot. Aaron Civale and Tobias Myers have been hit-or-miss this season, while Brandon Woodruff remains sidelined after he hit several snags during his rehab from shoulder surgery.

This article first appeared on New Baseball Media and was syndicated with permission.

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