Fri September 23, 1988

• FINAL
  

  Tigers4
  

  Orioles5
• FINAL/10
  

  Cubs5
  

  Pirates3
• FINAL
  

  Blue Jays4
  

  Guardians2
• FINAL
  

  Nationals3
  

  Phillies2
• FINAL
  

  Reds5
  

  Braves4
• FINAL
  

  Red Sox10
  

  Yankees9
• FINAL
  

  Mets1
  

  Cardinals2
• FINAL/10
  

  Mariners2
  

  Rangers3
• FINAL
  

  Royals0
  

  White Sox2
• FINAL/14
  

  Athletics9
  

  Brewers8
• FINAL/12
  

  Astros3
  

  Padres4
• FINAL
  

  Dodgers3
  

  Giants0
• FINAL
  

  Twins7
  

  Angels1