Gunner Mayer Stats & Bio | Mariners Pitcher

About Gunner Mayer

Gunner Mayer is a pitcher for the Seattle Mariners, wearing jersey number 95 and bringing a towering 6-foot-6 frame to the mound. Born on July 27, 2000, in Walnut Creek, California, Mayer developed his craft close to home before honing his skills at San Joaquin Delta Junior College, where he laid the foundation for a professional career. His lean, athletic build at 190 pounds allows him to generate impressive mechanics and leverage from his height, qualities that caught the attention of Seattle's scouting staff. Still in the early stages of his professional journey, the young right-hander represents the kind of projectable talent the Mariners organization values as they continue building a competitive roster for the future. Fans in Seattle have every reason to watch Mayer's development with great anticipation.

Updated: Mar 18, 2026