Is This the Josh Adamczewski Breakout That Was Foretold?

The Milwaukee Brewers’ farm system is as rich in talent as it’s ever been, and there’s another top-end prospect finding a groove in the upper levels of the minor leagues. Josh Adamczewski may be the next household name to enter the conversation for breakout prospect of the year, and his well-rounded game is important to monitor while he continues to climb. 

Adamczewski's Background
Adamczewski is a 5-foot-11, 190-pound 21-year-old in the Brewers’ loaded pipeline. He’s ranked sixth in the team’s farm according to both Brewer Fanatic and MLB Pipeline, but the left-handed hitting phenom could be due for a bump up the list with Cooper Pratt and Luis Lara recently entering the big leagues. 

Three of his five tools grade out at a 50 (average) or better, according to MLB Pipeline’s 20-to-80 scouting scale. Adamczewski’s hit tool is a 55, and his power and run tools are both at the average level of 50. The 2023 15th-round pick is in his third full professional season after being selected right out of high school, and this has been his most promising season yet.

An Elite Hit Tool
The Crew’s outfield prospect rose all the way up to the High-A Wisconsin Timber Rattlers during the home stretch of last season, but he slashed just .196/.292/250 over 16 games with the club. This year, he returned to Appleton and laid waste to the Midwest League. Adamczewski slashed .331/.464/.572 for the T-Rats, earning a promotion to Double-A roughly a month ago. He's refused to slow down, and has hit .304 with an .883 OPS over 21 games with the Double-A Biloxi Shuckers. 

The approach is augmenting his sheer bat-to-ball skills. Adamczewski has walked 51 times this season compared to 55 strikeouts, which is in keeping with his track record over 186 career minor-league games. It's especially remarkable to see him adjust so rapidly and find such instant success with Biloxi; the jump from High-A to Double-A is the toughest one short of that from Triple-A to the majors.

Developing a Potent Bat
The high-end hit tool and ability to work an at-bat have been constants in Adamczewski’s professional career so far. His power, on the other hand, has really burst onto the scene this year. He swatted just eight home runs over his first 115 career games. Through 71 games in 2026, however, he’s managed to eclipse that total and then some, throttling 12 long balls with a career-best 55 runs batted in already. Part of this has come from his decision to lower the hands in his batting stance, allowing him to drive through the ball and cut down his ground-ball rate by 10 percentage points. He's even cracked six doubles and three homers since rising to Double-A. If his power is showing up in a whole new and lasting way, it marks a change in his profile from probable future role player to possible future star.

Room To Improve
While Adamczewski has made significant strides at the plate, he isn’t a complete prospect, by any means. Originally profiled as a second baseman, he moved to the outfield grass due to his below-average glove. His arm is his lowest-rated attribute, earning just a 40 from MLB Pipeline, so he won't be elite even in a corner outfield spot. He will go as far as his bat takes him, and try to shore up his skills in the field enough to be average out there.

ETA to Milwaukee
Between Garrett Mitchell’s loudly ticking service clock; Christian Yelich’s age and health record; and long-term commitments to Jackson Chourio and Luis Lara, Adamczewski will have both an opportunity to make a firm case for himself—and plenty of competition. I’d anticipate he rounds out this season in Double-A Biloxi and spends plenty of time developing with the Triple-A Nashville Sounds before getting a call-up as soon as late 2027. With a hitter this gifted, though, a faster track is always possible.

Interested in learning more about the Milwaukee Brewers' top prospects? Check out our comprehensive top prospects list that includes up-to-date stats, articles and videos about every prospect, scouting reports, and more!