Thu April 27, 1978

• FINAL
  

  Mariners

  1
  

  Angels

  5
• FINAL
  

  Twins

  6
  

  Athletics

  1
• FINAL
  

  Guardians

  1
  

  Rangers

  3
• FINAL
  

  Blue Jays

  8
  

  Royals

  7
• FINAL
  

  Giants

  5
  

  Braves

  3