The Boston Red Sox and Los Angeles Dodgers have officially locked up playoff spots -- but the wild cards could come down to the final day.
The Nationals clinched a winning season with Thursday's victory over the Marlins, but they still have work to do to call this year a success.
Bryce Harper provided hit his 20th home run and Gio Gonzalez posted a solid start as the Nats beat the Marlins, 3-2. They remain five games back in the Wild Card race.
Denard Span's hitting streak, the longest the major leagues have seen in the past two years, has ended at 29 consecutive games.