In the city where it all ended for more than 20 years, the Pittsburgh Pirates beat the Atlanta team to clinch a postseason spot--the first time since 1990 and 91. They clinched in part because the Brewers lost.
Their winning ways in September have been matched only by the Cardinals, but they've closed the gap to one game in the lost column for the division title. With the Giants loss in LA, they are a full game ahead of the Giants for the top wild card slot. The Giants can still secure the second slot but they face the possibility that the Dodgers will clinch the division against them tomorrow--and with Kershaw on the mound, it's a real possibility.
Update: Yeah, it happened, and the Dodgers fans could have started celebrating in the 7th inning of what became a lopsided game. So the Dodgers got the West, but both the Pirates and Cards lost, so the Bucs are still a game out in the Central. Apparently the Giants are very close to clinching a wild card but I've given up trying to figure this stuff out. Update 2: So when the Brewers lost on Thursday, the Giants backed into a wild card.