The Nationals can earn home-field advantage throughout the postseason with a win Wednesday over Philadelphia or a Cincinnati loss in St. Louis.
If the Nats finish with the best record in the NL, they will face the winner of the National League Wild Card game, which will likely feature the Atlanta Braves and St. Louis Cardinals.
If the Nationals lose Wednesday against Philadelphia and Cincinnati beats St. Louis the Nationas will finish with the NLs second best record. They will face the San Francisco Giants in the NLDS.
In both scenarios, the Nats would begin the NLDS with two games on the road. Games 3, 4, 5 would be played at Nationals Park to close out the best-of-5 series.