Playoff Series Breakdown
| Play-In Round: Gmen @ Nationals | ||
| 1 | Gmen 3, Nationals 2 | WP: Lincecum LP: Scherzer |
| 2 | Nationals 6, Gmen 3 | WP: Gonzalez LP: Marquard |
| 3 | Gmen 8, Nationals 7 | WP: Adams LP: Treinen |
| 4 | Gmen 5, Nationals 0 | WP: Maglie LP: Rogers |
| 5 | Nationals 12, Gmen 0 | WP: Scherzer LP: Lincecum |
| 6 | Nationals 10, Gmen 4 | WP: Gonzalez LP: Marquard |
| 7 | Nationals 9, Gmen 0 | WP: Strasburg LP: Wiltse |
| Nationals Win Series 4-3 | ||
| Play-In Round: Brewers @ Cubs | ||
| 1 | Cubs 5, Brewers 0 | WP: Brown LP: Burnes |
| 2 | Cubs 6, Brewers 4 | WP: Ellsworth LP: Sheets |
| 3 | Cubs 3, Brewers 2 | WP: Taylor LP: Higuera |
| 4 | Cubs 3, Brewers 2 | WP: Jenkins LP: Woodruff |
| Cubs Win Series 4-0 | ||
| Play-In Round: Angels @ Astros | ||
| 1 | Astros 6, Angels 0 | WP: Scott LP: Ryan |
| 2 | Astros 6, Angels 4 | WP: Richard LP: Finley |
| 3 | Astros 2, Angels 1 | WP: Dierker LP: Chance |
| 4 | Astros 7, Angels 3 | WP: Roberts LP: Tanana |
| Astros Win Series 4-0 | ||
| Play-In Round: Orioles @ Americans | ||
| 1 | Americans 2, Orioles 1 | WP: Lowe LP: Palmer |
| 2 | Orioles 13, Americans 11 | WP: Britton LP: Uehara |
| 3 | Orioles 4, Americans 1 | WP: Garver LP: Sullivan |
| 4 | Americans 9, Orioles 3 | WP: Slocumb LP: Martinez |
| 5 | Americans 6, Orioles 4 | WP: Lowe LP: Palmer |
| 6 | Orioles 4, Americans 1 | WP: Mussina LP: Beckett |
| 7 | Americans 9, Orioles 5 | WP: Sullivan LP: Garver |
| Americans Win Series 4-3 | ||
| Play-In Round: Phanatics @ Mets | ||
| 1 | Mets 8, Phanatics 7 | WP: Myers LP: Madson |
| 2 | Mets 5, Phanatics 4 | WP: Benitez LP: Sparks |
| 3 | Phanatics 16, Mets 4 | WP: Wheeler LP: Gooden |
| 4 | Phanatics 5, Mets 2 | WP: Farrell LP: Matlack |
| 5 | Mets 5, Phanatics 1 | WP: Seaver LP: Schilling |
| 6 | Mets 6, Phanatics 3 | WP: deGrom LP: Sparks |
| Mets Win Series 4-2 | ||
| Play-In Round: Pirates @ Reds | ||
| 1 | Reds 3, Pirates 0 | WP: Blackwell LP: Cole |
| 2 | Pirates 7, Reds 6 | WP: Romo LP: White |
| 3 | Pirates 7, Reds 0 | WP: Adams LP: Luque |
| 4 | Pirates 8, Reds 3 | WP: Loaiza LP: Rijo |
| 5 | Pirates 7, Reds 2 | WP: Cole LP: Blackwell |
| Pirates Win Series 4-1 | ||
| Play-In Round: White Sox @ Tigers | ||
| 1 | Tigers 7, White Sox 4 | WP: Verlander LP: Cicotte |
| 2 | White Sox 4, Tigers 2 | WP: Faber LP: Bunning |
| 3 | White Sox 3, Tigers 2 | WP: Wood LP: Trout |
| 4 | White Sox 8, Tigers 7 | WP: Russell LP: Donovan |
| 5 | White Sox 4, Tigers 3 | WP: Acosta LP: Verlander |
| White Sox Win Series 4-1 | ||
| Play-In Round: Royals @ A's | ||
| 1 | A's 3, Royals 1 | WP: Blue LP: Saberhagen |
| 2 | Royals 7, A's 2 | WP: Greinke LP: Coombs |
| 3 | Royals 5, A's 4 | WP: Gordon LP: Hendriks |
| 4 | A's 7, Royals 5 | WP: Street LP: Montgomery |
| 5 | A's 3, Royals 1 | WP: Blue LP: Saberhagen |
| 6 | A's 10, Royals 0 | WP: Coombs LP: Greinke |
| A's Win Series 4-2 | ||
