Playoff Series Breakdown
| First Round Playoff: Blue Jays @ White Sox | ||
| 1 | White Sox 3, Blue Jays 2 | WP: Familia LP: Castillo |
| 2 | Blue Jays 5, White Sox 1 | WP: Snell LP: Hahn |
| 3 | White Sox 3, Blue Jays 2 | WP: Santiago LP: Bumgarner |
| White Sox Win Series 2-1 | ||
| First Round Playoff: Pirates @ Brewers | ||
| 1 | Pirates 5, Brewers 3 | WP: Okert LP: Jackson |
| 2 | Brewers 7, Pirates 5 | WP: Flynn LP: Edwards |
| 3 | Brewers 7, Pirates 4 | WP: Woo LP: Anderson |
| Brewers Win Series 2-1 | ||
| First Round Playoff: Twins @ Angels | ||
| 1 | Angels 8, Twins 3 | WP: Cortes Jr. LP: Flaherty |
| 2 | Angels 8, Twins 0 | WP: Chacin LP: Cease |
| Angels Win Series 2-0 | ||
| First Round Playoff: Diamondbacks @ Dodgers | ||
| 1 | Dodgers 8, Diamondbacks 2 | WP: Cueto LP: Miller |
| 2 | Dodgers 5, Diamondbacks 4 | WP: Ynoa LP: Bradish |
| Dodgers Win Series 2-0 | ||
| Second Round Playoff: Angels @ Red Sox | ||
| 1 | Red Sox 4, Angels 2 | WP: Cole LP: Wacha |
| 2 | Red Sox 4, Angels 1 | WP: Cingrani LP: Cortes Jr. |
| 3 | Angels 4, Red Sox 3 | WP: Holland LP: Adams |
| 4 | Angels 4, Red Sox 1 | WP: Keller LP: Hernandez |
| 5 | Red Sox 2, Angels 1 | WP: Cole LP: Cortes Jr. |
| Red Sox Win Series 3-2 | ||
| Second Round Playoff: White Sox @ Mariners | ||
| 1 | Mariners 3, White Sox 0 | WP: Peralta LP: Verlander |
| 2 | Mariners 14, White Sox 4 | WP: Paddack LP: Scherzer |
| 3 | White Sox 12, Mariners 7 | WP: Familia LP: Alvarado |
| 4 | Mariners 4, White Sox 0 | WP: Walker LP: Odorizzi |
| Mariners Win Series 3-1 | ||
| Second Round Playoff: Dodgers @ Marlins | ||
| 1 | Marlins 10, Dodgers 8 | WP: Javier LP: Littell |
| 2 | Marlins 5, Dodgers 4 | WP: Berrios LP: Moya |
| 3 | Dodgers 5, Marlins 3 | WP: Faria LP: Strider |
| 4 | Dodgers 7, Marlins 6 | WP: Littell LP: Santillan |
| 5 | Marlins 6, Dodgers 2 | WP: Kershaw LP: Cueto |
| Marlins Win Series 3-2 | ||
| Second Round Playoff: Brewers @ Reds | ||
| 1 | Reds 7, Brewers 0 | WP: Fernandez LP: Tanaka |
| 2 | Reds 7, Brewers 2 | WP: Ray LP: Smith |
| 3 | Reds 6, Brewers 3 | WP: Pineda LP: Ramirez |
| Reds Win Series 3-0 | ||
| Third Round Playoff: Mariners @ Red Sox | ||
| 1 | Mariners 9, Red Sox 8 | WP: Whitlock LP: Diaz |
| 2 | Mariners 11, Red Sox 5 | WP: Paddack LP: Moore |
| 3 | Mariners 3, Red Sox 1 | WP: Latos LP: Cole |
| 4 | Red Sox 8, Mariners 1 | WP: Hernandez LP: Walker |
| 5 | Mariners 4, Red Sox 2 | WP: Peralta LP: Cingrani |
| Mariners Win Series 4-1 | ||
| Third Round Playoff: Marlins @ Reds | ||
| 1 | Marlins 6, Reds 1 | WP: Berrios LP: Fernandez |
| 2 | Reds 4, Marlins 2 | WP: Ray LP: Santillan |
| 3 | Reds 12, Marlins 8 | WP: Castillo LP: Santillan |
| 4 | Reds 4, Marlins 3 | WP: Richards LP: Javier |
| 5 | Reds 11, Marlins 6 | WP: Fernandez LP: Berrios |
| Reds Win Series 4-1 | ||
| World Series: Mariners @ Reds | ||
| 1 | Mariners 9, Reds 0 | WP: Paddack LP: Ray |
| 2 | Mariners @ Reds | |
| 3 | Reds @ Mariners | |
| 4 | Reds @ Mariners | |
| 5 | Reds @ Mariners | |
| 6 | Mariners @ Reds | |
| 7 | Mariners @ Reds | |
| Mariners Lead Series 1-0 | ||
