So over 11 rounds, you would have:IM Jack Rudd wrote:I've just looked at extending the 4NCL pool algorithm: it turns out that you can also do a pool system for 18 teams (three groups of six) and for 20 teams (five groups of four), and it works.
1) Three groups of six play 5 rounds APA, and then top and bottom three from each group go into two groups (promotion and non-promotion, as there is nowhere to be relegated to) of 9 teams, with each team having six more games to play against the 6 teams from the other groups.
2) Five groups of four play 3 rounds APA, and then top and bottom two from each group go into two groups of 10 teams, with each team having eight more games to play against the 8 teams from the other groups.
The first one could work, but having 3 preliminary rounds to decide the promotion group doesn't sound great. What does the other group have to play for over the next 8 rounds?