Josh Adamczewski

21-Year-Old OutfielderOF
Milwaukee Brewers AA
2026 Fantasy Outlook
Adamczewski is firmly a bat-first prospect, but he has enough offensive upside to potentially profile at the bottom of the defensive spectrum. His strong left-handed swing can produce power to all fields, and he logged a .210 ISO and 187 wRC+ in 46 games at Single-A and a .953 OPS in 20 Arizona Fall League games. Adamczewski struggled to produce in 16 games at High-A, in part due to a .239 BABIP, although he still commanded the zone with a 12.3 percent walk rate and 16.9 percent strikeout rate. His scouting report has two high grades: hit and power; and three low grades: run, field and arm. In addition to his primary position of second base, Adamczewski has seen time in left field. There are some similarities to former Brewer Keston Hiura, as Adamczewski's defense is a big enough liability that there is extreme pressure on him to produce enough at the plate to eventually slot in at designated hitter. In the meantime, look for him to put up impressive surface and under-the-hood stats at High-A and Double-A in 2026. Read Past Outlooks
RANKS
Rest of Season From Preseason
Signed a $252,500 contract with the Brewers in July of 2023.
Advances to Double-A
OFMilwaukee Brewers  AA
June 15, 2026
The Brewers promoted Adamczewski from High-A Wisconsin to Double-A Biloxi on Monday.
Analysis
Adamczewski earned the promotion after producing a ridiculous .331/.464/.572 batting line with nine home runs, 10 stolen bases and a 41:40 BB:K in 50 games at Wisconsin. The 21-year-old has made all of his starts in left field this season, but Adamczewski is also capable of handling second base.
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Batting Stats
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Minor League Game Log
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Minor League Left/Right Batting Splits (AA)
Since 2024
 
 
-100%
OPS vs LHP
2026
 
 
-100%
OPS vs LHP
2025
No Stats
2024
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2024vs Left 1.000 3 0 1 .333 .333 .667
Since 2024vs Right .000 2 0 0 .000 .000 .000
2026vs Left 1.000 3 0 1 .333 1.000 .667
2026vs Right .000 2 0 0 .000 .000 .000
2025vs Left 0 0 0 0 0 0 0 0 0
2025vs Right 0 0 0 0 0 0 0 0 0
2024vs Left 0 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0 0
Prospect Rankings History
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Defensive Stats
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Stats Vs Upcoming Pitchers
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Recent RotoWire Articles Featuring Josh Adamczewski See More
Recent RotoWire Articles Featuring Josh Adamczewski See More
More Fantasy News
Moves up to High-A
OFMilwaukee Brewers  AA
August 21, 2025
Adamczewski has gone 2-for-8 with two runs, one RBI and one stolen base in two games since being promoted to High-A Wisconsin from Single-A Carolina on Tuesday.
Analysis
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Shelved at Single-A
OFMilwaukee Brewers  AA
Back
June 11, 2025
Single-A Carolina placed Adamczewski on its 7-day injured list May 28 due to left SC joint irritation in his back, Adam McCalvy of MLB.com reports.
Analysis
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