In my custom league,
now, which teams are qualified for post season is already decided,
but we can't go through post season because some teams don't play a game.
So, we consider simulating remaining games,
but we are reluctant because we don't know if or how simuating games affects pitchers' stamina.
Do you know?
It does not reset
However your rotation and bullpens stamina is at the end of the last game actually played is where it'll be when the postseason starts, even if games are simmed in between.