Rhox
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2) One week is allotted for each round.
3) The tournament system is group-based.
The regulations are a bit daunting. If there are 20 participants, that's 19 rounds? With a pace of 2-3 battles per week. It's hard to imagine such a marathon.
Perhaps with a large number of participants, it would be better to play a single-elimination tournament, or at least a single-elimination tournament after losing to two opponents.
And increase the time per round to 10-14 days.