Jack Jasiak Stats & Bio | Guardians Pitcher

About Jack Jasiak

Jack Jasiak is a pitcher for the Cleveland Guardians, wearing jersey number 60 as he works to establish himself at the major league level. Born on March 6, 2001, in Naperville, Illinois, Jasiak developed his passion for the game in the Chicago suburbs before taking his talents to the University of South Florida, where he honed the skills that would eventually attract professional attention. Standing 6'1" and weighing 198 pounds, the right-hander brings an athletic frame and competitive makeup to the mound. Still early in his professional journey at just 23 years old, Jasiak represents the next wave of young pitching talent within the Guardians organization. Cleveland has built a strong reputation for developing arms, making it an ideal environment for Jasiak to grow into a reliable contributor at the highest level of the game.

Updated: Mar 9, 2026