Playoff Series Breakdown
| Play-In Round: Pirates @ Rangers | ||
| 1 | Rangers 7, Pirates 4 | WP: Rasmussen LP: Ellis |
| 2 | Pirates 7, Rangers 6 | WP: Alexander LP: Blyleven |
| 3 | Pirates 5, Rangers 3 | WP: Heaverlo LP: Foucault |
| Pirates Win Series 2-1 | ||
| Play-In Round: Royals @ Phillies | ||
| 1 | Phillies 2, Royals 0 | WP: Christenson LP: Cleveland |
| 2 | Phillies 12, Royals 5 | WP: Twitchell LP: Fitzmorris |
| Phillies Win Series 2-0 | ||
| Play-In Round: Giants @ Cubs | ||
| 1 | Cubs 4, Giants 3 | WP: Reuschel LP: Bradley |
| 2 | Giants 8, Cubs 2 | WP: Falcone LP: Hooton |
| 3 | Giants 5, Cubs 4 | WP: Buskey LP: Sutter |
| Giants Win Series 2-1 | ||
| Play-In Round: Indians @ Astros | ||
| 1 | Astros 3, Indians 1 | WP: Larson LP: Eckersley |
| 2 | Indians 8, Astros 0 | WP: Perry LP: Wilson |
| 3 | Indians 5, Astros 0 | WP: Strom LP: McLaughlin |
| Indians Win Series 2-1 | ||
| First Round Playoff: Braves @ Phillies | ||
| 1 | Braves 2, Phillies 1 | WP: Niekro LP: Carlton |
| 2 | Braves 6, Phillies 1 | WP: Kline LP: Twitchell |
| Braves Win Series 2-0 | ||
| First Round Playoff: A's @ Indians | ||
| 1 | Indians 9, A's 8 | WP: Thomas LP: Pentz |
| 2 | Indians 3, A's 1 | WP: Perry LP: Holtzman |
| Indians Win Series 2-0 | ||
| First Round Playoff: Reds @ Giants | ||
| 1 | Reds 5, Giants 2 | WP: Grimsley LP: Bradley |
| 2 | Reds 6, Giants 3 | WP: Tomlin LP: Sosa |
| Reds Win Series 2-0 | ||
| First Round Playoff: White Sox @ Pirates | ||
| 1 | Pirates 5, White Sox 4 | WP: Ellis LP: Johnson |
| 2 | White Sox 4, Pirates 2 | WP: Lonborg LP: Candelaria |
| 3 | White Sox 4, Pirates 3 | WP: Zamora LP: Kison |
| White Sox Win Series 2-1 | ||
| Second Round Playoff: Braves @ Indians | ||
| 1 | Indians 2, Braves 1 | WP: Kern LP: Niekro |
| 2 | Indians 1, Braves 0 | WP: Perry LP: Campbell |
| Indians Win Series 2-0 | ||
| Second Round Playoff: Reds @ White Sox | ||
| 1 | White Sox 5, Reds 4 | WP: LaGrow LP: Tomlin |
| 2 | Reds 4, White Sox 2 | WP: Zachry LP: Lonborg |
| 3 | White Sox 6, Reds 4 | WP: Forster LP: Tomlin |
| White Sox Win Series 2-1 | ||
| Third Round Playoff: White Sox @ Expos | ||
| 1 | Expos 2, White Sox 1 | WP: Kerrigan LP: Forsch |
| 2 | Expos 6, White Sox 2 | WP: Renko LP: Lonborg |
| 3 | Expos 5, White Sox 2 | WP: John LP: Lolich |
| 4 | White Sox 9, Expos 8 | WP: Lindblad LP: Murray |
| 5 | White Sox 2, Expos 1 | WP: Johnson LP: Rogers |
| 6 | Expos 5, White Sox 3 | WP: Renko LP: Lonborg |
| Expos Win Series 4-2 | ||
| Third Round Playoff: Indians @ Orioles | ||
| 1 | Orioles 5, Indians 0 | WP: Mitchell LP: Perry |
| 2 | Orioles 16, Indians 1 | WP: Hood LP: Eckersley |
| 3 | Indians 5, Orioles 4 | WP: Strom LP: Holdsworth |
| 4 | Orioles 3, Indians 2 | WP: Garland LP: Tiant |
| 5 | Orioles 6, Indians 0 | WP: Mitchell LP: Perry |
| Orioles Win Series 4-1 | ||
| World Series: Expos @ Orioles | ||
| 1 | Expos 6, Orioles 2 | WP: Rogers LP: Holdsworth |
| 2 | Orioles 2, Expos 0 | WP: Mitchell LP: John |
| 3 | Expos 5, Orioles 4 | WP: Renko LP: Palmer |
| 4 | Orioles 8, Expos 4 | WP: Carrithers LP: Moore |
| 5 | Expos 5, Orioles 2 | WP: Rogers LP: Hood |
| 6 | Orioles 2, Expos 1 | WP: Mitchell LP: John |
| 7 | Expos 2, Orioles 1 | WP: Murray LP: Holdsworth |
| Expos Win Series 4-3 | ||
