During the late 1970s and early 1980s, several men's professional slow-pitch softball leagues were formed in the United States to build on the growth and talent in the booming men's amateur game during this period. The American Professional Slo-Pitch League (APSPL) was the first such league, launching in an era of experimentation in professional sports leagues. The APSPL was formed in 1977 by former World Football League executive Bill Byrne, who would go on to found the Women's Professional Basketball League. Former New York Yankees star Whitey Ford was the first APSPL commissioner.