Then look at the net win, the most comes first, not just the net win between the three teams, but the net win of all the games of each team. If the net win is the same, compare the net win score (small score) downwards, and also look at the scores of all games between one team and the other four teams (total score-total loss score = net win score), with the most listed at the front. If there are two differences in calculating the net win and the net win score, look at the relationship between them in the round robin and list the winners first.
If all three teams are the same through the net win and the net win score, it is necessary to "draw lots" to decide who ranks first and can't play any more.
That's all for your reference.