The Astros are going to take it because the Rockies have terrible pitching. They're going to eat those relief pitchers alive, especially Shawn Chacon (if they allow him to close another game this year). It's going to be a long shot, playing the Braves, but if they win tonight against the Reds the Cubs will be in the thick of the race once again. Most likely the Giants won't be taking the NL West and probably won't get the wild card spot either since they play the Dodgers.
Even if the Padres are statistically alive, their magic number is 2 with 4 games remaining. We can pretty much rule the Padres out.
Even if the Padres are statistically alive, their magic number is 2 with 4 games remaining. We can pretty much rule the Padres out.