On October 31, 1973 — Tom Seaver of the New York Mets wins the National League Cy Young Award, the first time the honor has gone to a pitcher with fewer than 20 victories. Seaver finished 19-10 and led the league in ERA (2.08) and strikeouts (251).
This Day In Baseball on Patreon
Sources:
Baseball Reference October 31
National Pastime October 31
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game