2026 Fantasy Baseball Breakout Player: Jacob Misiorowski

In his first game in March, Jacob Misiorowski allowed one run over two innings with five strikeouts against Great Britain.

SP Jacob Misiorowski, Milwaukee Brewers | Rick Scuteri-Imagn Images

Milwaukee added Misiorowski in the second round of the 2022 June Amateur Draft. Over his first three years in the minors, he posted a 3.39 ERA, 1.236 WHIP, and 241 strikeouts over 172.1 innings. He was challenging to hit, but his walk rate (5.8) created drama on the base paths.

Jacob Misiorowski, Milwaukee Brewers (NFBC ADP – 133)

2026 Jacob Misiorowski Pitching Stats | Shawn Childs

Last year, Misiorowski reached a much higher level at AAA (4-2 with a 2.13 ERA, 1.089 WHIP, and 80 strikeouts over 63.1 innings). His walk rate improved to 4.2 per nine innings. The Brewers called him up in mid-June, where his arm was up to the task over his first seven starts (2.70 ERA, 0.960 WHIP, and 47 strikeouts over 33.1 innings). After missing 15 games with a leg injury, his arm lost momentum over his final eight appearances (6.06 ERA, 1.531 WHIP, and 40 strikeouts over 32.2 innings).

His walk rate (4.2) aligned with his AAA growth in 2025. Misiorowski brought a plus strikeout rate (11.9). Six of his eight home runs were hit by left-handed pitching. He had a lower strikeout percentage (24.8) vs. righties (38.6% against left-handed pitching).

2025 PitchingNinja Slider of the Year Award. 🏆

Winner: Jacob Misiorowski

The Miz sent Willi Castro to the shadow realm with this one. 💀🪦⚰️ pic.twitter.com/2mhyLLaifK

— Rob Friedman (@PitchingNinja) November 21, 2025

His average fastball (98.7 mph) had plus velocity. Misiorowski featured a below-par cutter (.278 BAA) and an edge curveball (.237 BAA) as his secondary pitches. He mixed in a low-volume changeup (.053 BAA) that showed swing-and-miss promise (10 strikeouts over 69 thrown pitches). Misiorowski survives many at-bats with his explosive four-seamer (.195 BAA and 49 strikeouts).

Fantasy Outlook: Misiorowski brings a high ceiling, which starts with throwing more strikes. He looks poised to push his innings to the 150 range this year. Between AAA and the majors, the Brewers threw over 90 pitches in four starts. Misiorowski pitched over six innings in seven in 25% of his appearances.

A developing arm, with his growth tied to his command. I expect his ERA to be more helpful than his WHIP, while still offering plenty of strikeouts.