After each simulated season I record the team's record in addition to where they finished. That lets me show their probabilities broken down by record. Because I randomly pick scores when simulating a game, these predictions tend to be generous.
If they finish the season with:
W-L PCT: Their record for the games left in the season (wins, losses and percentage of games won.)
Chance in Playoffs: Sum of the top 8 positions when they finish with that record.
Chance team will finish the regular season at position: Rounded percentages. As Count gets smaller there are fewer times to flush out the different possible finishing positions, so the numbers are less accurate.
Count: How many times I saw them play out the season with that record. Notice the 1000 times I force them to win or loose all their games.