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Regarding the order, there isn't much difference whether it's done earlier or later. Although, it's probably better to conduct them in a similar or almost identical manner. Then, the "champions" will be recognized both in individual disciplines and in the "combined event," i.e., based on the sum of their placements, for example.
There are actually many options here...
The main thing is to create a clear list of disciplines. For example, Duels (Optimal, level 1), Duels (Luchik, developed heroes with armies, artifacts, and spells), an RPG variant, and collecting items/resources/creatures within a time limit (Brakeman). :)
And, by the way, such competitions could be named after months or significant dates (for example, "Christmas," "Post-Christmas," etc.). :)
P.S. The main thing is not to let the topic die out, gather all the ideas, and implement them.

Барон "Vampires"
Отдай свои прошлые сны,
В сомненьях себя обрети,
В бешеном танце душа кружится!
Не думай, что будет потом,
Здесь и сейчас мы живем,
Стань хоть на миг сам собой, слышишь!
