Imagine for a moment that Mets, Phillies, Diamondbacks, Padres and Rockies all finished with the same record. That could mean ties in the NL East, West and wild-card, and four days of tie-breaker games to send two teams packing. In the East, Philly would host New York for a one-game playoff. From there, it gets complicated.
Out West, the team with the best head-to-head record could choose to play one road game or two home games, with the winner hosting the remaining team for the division title. With the divisions decided, the remaining clubs would determine the wild-card in a two-day, two-game tournament. It’s all unlikely, but possible; all five teams hover within two games of each other headed into tonight.