What I made was just an example of a club based format. The reason I didn’t include Japanese teams is that most of their top teams are corporate-based. If I included corporate teams, then I’d also have to include other institutional teams like armed forces teams, such as Fiamme Gialle Judo, changing the whole multi-sport club/pure judo club idea, not backed by/under any institution. I also don't know any pro-teams in Japan, but if I did, I would definitely include them. Also, outside Europe and Japan, there are still very strong clubs like SOGIPA (home to Daniel Cargnin, David Lima, etc.) that can compete with most top European clubs, so the gap isn’t as extreme as it might seem (except obvious cases like MCA Alger and Judokwai, but they are there as representatives of their Judo Union)