Yankees prospect Dax Kilby overhauled swing in one week — and it changed everything

Formerly with a wide base and closed off, the lefty-hitting Dax Kilby is now narrower and more open.

By Mark W. Sanchez · NY Post

Published: Friday, 6 November 2026 at 2:15 AM

Key Things to Know

Dax Kilby overhauled his swing in about one week before dominating in the Arizona Fall League.
Kilby earned an AFL All-Star selection following the rapid mechanical adjustment.
Yankees director of hitting Jarret DeHart expressed surprise at how quickly Kilby mastered the new swing.

The Story in 60 Seconds

New York Yankees prospect Dax Kilby successfully rebuilt his swing in approximately one week and quickly translated the changes into Arizona Fall League success. Yankees director of hitting Jarret DeHart praised Kilby's rapid development, which helped the young hitter earn an AFL All-Star selection.

Kilby, a 2025 first-round draft pick out of a Georgia high school, reported to the club's Tampa facilities in late September after dealing with hamstring issues that limited him to 32 games in Low-A. Despite the missed time, he posted an .883 OPS with 39 walks and 31 strikeouts.

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Yankees prospect Dax Kilby overhauled swing in one week — and it changed everything

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