Since 1980, seven teams have had two twenty-game winners in the same year:
1980 – Baltimore Orioles – Steve Stone (25-7) & Scott McGregor (20-8)
1983 – Chicago White Sox – Lamarr Hoyt (24-10) & Rich Dotson (22-7)
1985 – St. Louis Cardinals – John Tudor (21-8) & Joaquin Andujar (21-12)
1990 – Oakland Athletics – Bob Welch (27-6) & Dave Stewart (22-11
1993 – Atlanta Braves – Tom Glavine (22-6) & Greg Maddux (20-10
1993 – San Francisco Giants – John Burkett (22-7) & Bill Swift (21-8)
1999 – Houston Astros – Mike Hampton (22-4) & Jose Lima (21-20)
