William McCullough Kempner is an American professional baseball pitcher for the Miami Marlins of Major League Baseball (MLB). He made his MLB debut in 2026.

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Facts from Wikidata (CC0).

William Kempner

American baseball player (born 2001)

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About William Kempner

William McCullough Kempner is an American professional baseball pitcher for the Miami Marlins of Major League Baseball (MLB). He made his MLB debut in 2026.

Overview

William McCullough Kempner is an American professional baseball pitcher for the Miami Marlins of Major League Baseball (MLB). He made his MLB debut in 2026.

From Wikipedia (CC BY-SA 4.0).

About William Kempner

William McCullough Kempner is an American professional baseball pitcher for the Miami Marlins of Major League Baseball (MLB). He made his MLB debut in 2026.

members

here now

Everything about William Kempner →

Live room · 1 here

Be the first in the room — members see you arrive.

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Facts from Wikidata (CC0).

William McCullough Kempner is an American professional baseball pitcher for the Miami Marlins of Major League Baseball (MLB). He made his MLB debut in 2026.

Overview

William McCullough Kempner is an American professional baseball pitcher for the Miami Marlins of Major League Baseball (MLB). He made his MLB debut in 2026.

From Wikipedia (CC BY-SA 4.0).