Josh Adamczewski

20-Year-Old Second Baseman2B
Milwaukee Brewers A+
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
From Preseason
Signed a contract with the Brewers in July of 2023.
Moves up to High-A
2BMilwaukee Brewers  A+
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
Adamczewski was shelved at Carolina in late May after experiencing joint irritation in his back, but he returned to action for the Single-A club coming out of the All-Star break and proceeded to slash .359/.468/.603 over his final 22 games to earn the move up to the Midwest League. He should continue to handle an everyday role in the Wisconsin infield for the remainder of the season.
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Batting Stats
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Minor League Game Log
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Minor League Left/Right Batting Splits (A+)
Since 2023
 
 
+67%
OPS vs RHP
2025
 
 
+120%
OPS vs RHP
2024
No Stats
2023
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2023vs Left .350 12 0 1 .100 .250 .100
Since 2023vs Right .584 53 0 5 .217 .302 .283
2025vs Left .200 12 0 1 .100 3.000 .100
2025vs Right .439 53 0 5 .217 16.000 .283
2024vs Left 0 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0 0
2023vs Left 0 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0 0
Prospect Rankings History
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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
Shelved at Single-A
2BMilwaukee Brewers  A+
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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