It is on your league main page right under "League Notes", but since you can't find it...
In the event that a Fantasy playoff game ends in a tie, the deadlock is broken using the following system:
Winning percentage against this opponent during the regular season
Winning percentage in Head-to-Head Standard leagues
This is the default league setting for all Public and Pro Leagues.
In leagues using this scoring format, the winning percentage is based on individual stat category wins and losses, and not matchup wins and losses. (A tie is worth a half win or 0.5, and a half loss or 0.5)
Example: Team A and Team B played each other three times during the regular season.
- In the first matchup, Team A won 9-3-1.
- In the second matchup, Team B won 6-4-3.
- In the third matchup, Team A won 7-5-1.
Team A had 20 stat category wins (9+4+7) vs. Team B's 14 stat category wins (3+6+5) during the regular season, with 5 ties.
Team A's winning percentage would be .577 (20 wins + 2.5 for ties = 22.5 / 39 total).
Winning percentage in Head-to-Head One-Win and Head-to-Head Points leagues
The tiebreaker in these leagues is the matchup win percentage against this opponent during the regular season. (Not stat category wins)
Example: Team C beat Team D, 3 out of 4 times during the regular season for a .750 win percentage.
It is not possible for a custom league commissioner to deviate from this tiebreaking system.