How does this three-way wild card scenario work (MLB)?

So, if we have three teams tied for the wild-card, they play a round-robin.

What if they all go 1-1? Who wins then?

Not exactly; if the Mets/Phillies/Padres all have the same record tomorrow, the NL East teams play off on Monday for their division, with the loser playing San Diego on Tuesday for the WC.

Well since Colorado is still in it we could have a FOUR way tie after tomorrow: requires the Padres to lose while Rockies/Mets/Phillies all win out. After the NL East game there would be TWO wild card playoff games on Tuesday and Wednesday, with the order of play already decided by coins flips two weeks ago (i.e. one of the WC teams would get a bye and play the winner of the Tuesday game).