The leaderboard is set up as a ladder system.
Everyone starts unranked.
As a partner wins, they begin to climb the ladder.
If they win against someone ahead of them, they take their spot on the ladder and they/all under them fall down by 1 spot.
If a partner does not play, they will begin to fall down the ladder.
The partner in 1st place also has a crown count for how many matches in 1st place they have.