John Kartsonas Stats & Bio | Rays Pitcher

About John Kartsonas

John Kartsonas is a pitcher for the Tampa Bay Rays, wearing jersey number 86 as he carves out his place in Major League Baseball. Known for his competitive edge on the mound, Kartsonas has taken an unconventional path to the big leagues, forgoing the traditional college route to pursue his professional dreams. His dedication to the craft has been evident in his recent outings, where he posted an impressive 0.0 ERA while recording a strikeout across one inning of work. That kind of dominant, efficient pitching is exactly what Tampa Bay values in its deep and versatile pitching staff. Kartsonas represents the next generation of Rays arms, a pitcher committed to growth, consistency, and contributing to one of baseball's most analytically driven and successful organizations.

Updated: Mar 4, 2026

Career Info

Team

Rays

League

MLB

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John Kartsonas – Stats

John Kartsonas Career Stats by Season

No season stats available

Recent Games