Yes, this is interesting and needs to be discussed. Just in case, we can use a well-known system where a Clan nominates 3 players for a match, and sparring matches take place. Then, with a score of 3:0, the Clans receive 10 and 0 points respectively, and with a score of 2:1, they receive 6 and 3 points. If a draw is recorded in any of the three duels, the participants each receive 1 point towards the General score. And in the future, the results of the matches can be recalculated using new Player Rating systems.
By the way, why not move your system from the Heroes 3 tournament topic to the General Player Rating topic, if it's for all parts of the game? :)
If duels are held as part of a match, then the Player Rating is simply calculated. The essence of Natasha's idea is to calculate the Clan Rating as the arithmetic mean of its three strongest players. She will explain this in more detail herself.
Although, the factor of the ratio of wins to losses is also worth considering. But that's a completely different story.
Added 2 minutes ago
:) Starting on Monday is great, but then only 3 Clans will be able to participate (unless Magic and Alliance hurry up...). And what kind of tournament did she want? on maps? for all parts?... or for some one part, with 3 players...
In general, if it's for 5 players, then our Clan will probably participate.
Sincerely, Supreme
She will arrive this Monday, and the tournament will be next week. For Heroes 3.