Interesting tidbit...
There are two possible three-way tie scenarios at play right now... assuming the Giants and Dodgers win tonight.
If the Giants sweep the Dodgers and the Astros sweep the Rockies... the Giants, Dodgers and Astros will all be tied. The teams would have to play some sort of round robin to determine the Division Winner in the West, and then the Wild Card.
If The Giants and Astros win 2 of 3 this weekend against their respective opponents, and the Cubs sweep the Braves... the Giants, Astros and Cubs would have a three-way tie for the Wild Card.
Couple of long shots, but it could be fun.