There are different ways to take into account the rating of players who don't play regularly; I asked for clarification. So, there was nothing strange about my question.
Added 1 hour 3 minutes ago
Here is an example of calculating the rating for the first completed tournament, "The Art of Strategy-2":
1. Will - 1550
2. Dexterwar - 1325
3. Moz - 1200
4. Dwp - 1013
5. Stefan - 990
6. Vip.rus - 975
7. Dmitrik - 814
8. Killandaction - 756
9. Bolivar - 750
10. Yaughen - 645
11. Alex_nv - 591
12. Noom - 488
13. GL - 435
14. Ayaks77 - 232
15. Eldarmoon - 230