Bill Kalfass, born in 1916, was a professional baseball pitcher whose career spanned a brief but notable period from September 15, 1937, to October 2, 1937. He played during a time when Major League Baseball was on the brink of transformation, with the integration of African American players just around the corner. Kalfass's tenure in the league was marked by a solid performance, highlighted by a career record of 1-0 and an earned run average (ERA) of 3.0, showcasing his ability to limit scoring opportunities against him.
In his short stint, Kalfass recorded a total of 9 strikeouts, demonstrating his capacity to overpower hitters despite his limited appearances. Although he did not earn any saves throughout his career, his contributions on the mound reflected the competitive spirit of the era, which was characterized by evolving pitching styles and strategies. Kalfass remains a part of the rich tapestry of baseball history, representing the many players who contributed to the game during a pivotal time in its development.