Stefan Raeth Stats & Bio | Mariners Pitcher

About Stefan Raeth

Stefan Raeth wears jersey number 89 as a pitcher for the Seattle Mariners, bringing a determined competitive spirit to the Pacific Northwest roster. Born on August 31, 2000, in Lafayette, California, Raeth developed his craft through dedicated years of baseball before honing his skills at the University of Washington, where he built the foundation for a professional career. Standing at 6'1" and weighing 180 pounds, he possesses an athletic frame well-suited to the demands of professional pitching. Raeth has appeared in three games at the major league level, gaining invaluable experience on one of baseball's most storied franchises. As a young pitcher born in the new millennium, he represents the exciting next generation of talent that Seattle fans are eagerly watching develop into a reliable contributor on the mound.

Updated: Mar 18, 2026