Orioles Prospect Kailen Hamson Shines in Arizona
The Australian pitcher is showcasing high-velocity stuff while competing for the Peoria Javelinas this fall.
Updated on Oct. 26, 2026 in Baseball
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Baltimore Orioles prospect Kailen Hamson is currently making waves in the Arizona Fall League as a member of the Peoria Javelinas. The Australian native is using the league to refine his skills as he targets a Major League Baseball debut by 2028.
Why it matters
Hamson is pursuing a professional baseball career following a successful 2025 collegiate season where he transitioned into a full-time pitcher. His performance in the Arizona Fall League is a critical step in his development toward reaching the major leagues and potentially competing in the 2028 Summer Olympics.
Hamson is currently throwing fastballs at 93-96 mph with sliders reaching over 2900 RPMs in league play. During his 2025 season, he recorded 127 strikeouts over 82 2/3 innings.
The players
Kailen Hamson
He is an Australian baseball pitcher currently playing for the Peoria Javelinas in the Arizona Fall League after being drafted by the Baltimore Orioles.
Baltimore Orioles
They are a Major League Baseball franchise based in Baltimore that selected Hamson in the 2025 MLB Draft.
Peoria Javelinas
They are a professional baseball team competing in the Arizona Fall League that currently features Hamson on their roster.
The details
After struggling as a two-way hitter, Hamson shifted his focus to pitching and was subsequently selected by the Baltimore Orioles in the eighth round of the 2025 MLB Draft. He previously played at Three Rivers College in Missouri and the University of the Cumberlands in Kentucky.
Timeline
1992 marked the last time the University of the Cumberlands produced an MLB draft selection.
2021 was the year Hamson first arrived in the United States.
2023 saw the Australian national team compete in the World Baseball Classic.
2025 was the year Hamson was selected in the eighth round of the MLB Draft.
2028 is the target year for Hamson to make his debut in Major League Baseball and the Summer Olympics.
Season Trajectory
This story follows the recent international growth pattern set by the 2023 World Baseball Classic, which boosted the visibility of Australian talent. Hamson's development within the Orioles system positions him as a key figure in the team's long-term pitching depth plans.
Hamson's development trajectory will be a primary focus for fans tracking the Orioles' minor league pitching depth during the off-season. His transition to a full-time pitcher suggests a significant change in his professional approach that could accelerate his climb through the team's ranks.
The takeaway
Developing pitchers who successfully specialize after collegiate versatility often see improved performance metrics on the mound. Hamson provides a roadmap for how international prospects can utilize the Arizona Fall League to refine elite secondary pitches like his high-spin slider.
Further reading
For more news on the team, visit the Baltimore Baseball section.
Source note: This article includes information reported by MLB.
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