[2] From 1975 to 1981, Leonard won 130 games, the most by any right-handed pitcher in Major League Baseball.

Leonard finished his career as the Royals’ all-time leader in complete games (103) and shutouts (23), and was second in wins (144).

He also held the club's single-season bests in starts (40), complete games (21), innings pitched (294.2) and strikeouts (244).

In 1989, Leonard was inducted into the Kansas City Royals Hall of Fame.

This biographical article relating to an American baseball pitcher born in the 1950s is a stub.