Player rating for tournaments across all installments of Heroes.

You read my mind. I didn't express them earlier because I needed the data from the fifth stage. So, everything looks very logical and consistent.

IMHO. Since I consider the 4th stage to be one of the most difficult, it's better to do it this way:
1+2+5;
3+4.

P.S. The 5th stage with 4 battles, I don't think it will cause many difficulties:)

P.P.S. Are you already writing the description?

Sincerely, VDV_forever