Mon June 30, 1980

• FINAL
  

  Guardians4
  

  Tigers9
• FINAL
  

  Cardinals4
  

  Pirates5
• FINAL
  

  Orioles9
  

  Blue Jays7
• FINAL
  

  Phillies7
  

  Nationals5
• FINAL/11
  

  Astros4
  

  Braves5
• FINAL
  

  Yankees6
  

  Red Sox3
• FINAL
  

  Twins12
  

  Royals3
• FINAL
  

  Angels10
  

  White Sox6
• FINAL
  

  Athletics2
  

  Brewers5
• FINAL
  

  Padres4
  

  Dodgers3
• FINAL
  

  Reds4
  

  Giants8
• FINAL
  

  Rangers11
  

  Mariners5