Casey Diamond is a professional pickleball player from Louisville, Kentucky, who transitioned to the sport after a successful junior and collegiate tennis career. A former standout at Centre College, Diamond turned professional in pickleball in 2023 and quickly established himself as one of the sport's rising talents.

Known for his athleticism, aggressive court coverage, and strong doubles play, Diamond has earned multiple podium finishes, including a title at APP Sacramento, silver medals at the APP Dallas Open and APP Cincinnati Open, and bronze and silver medals at the 2026 US Open. He also recorded a notable victory over top-ranked pro Tyson McGuffin at the 2024 PPA Virginia Beach Open.

During the 2026 Major League Pickleball season, at MLP St. Pete, Diamond made SportsCenter Top 10 with an insane behind-the-back shot.

Based in Boca Raton, Florida, Diamond has steadily climbed the professional ranks through consistent performances on Tour. In 2026, he signed a three-year agreement with the PPA Tour and Major League Pickleball, marking the next chapter in his professional career as he starts to compete against the sport's elite.