Posting quick and dirty scenarios here: 1) if the Brewers lose tomorrow, Cards are in as WC1. Brewers would need 2 Giants losses and 1 Phillies loss to get in as WC2. 2) If the Brewers win, they are in with 1 Giants loss. As WC1. 3) If the Brewers win and Giants go 2-0, Cards play a DH in Detroit Monday and would need to go 2-0 to knock Brewers out of playoffs. 4) Brewers win, SF goes 2-0, and MLB decides 58 is enough games for the Cardinals and gives the Brewers the WC spot by virtue of H2H record .