While I hold out a slight hope they can get to the final series of the season with an outside chance at the division title, I think the most realistic “best case scenario” is this idea of clinching the top Wild Card spot with enough games to have an extra day or two to get the bullpen pieces rested. The NL Wild Card Game is scheduled for Tuesday, October 2nd, so ideally they would have their playoff position solidified by that prior Friday or Saturday as RoCoBrewfan mentions.