Player rating for tournaments across all installments of Heroes.

Leave the respected Iron alone with the blitz rating... :) Blitz shouldn't be mixed with other tournaments – it's essentially something completely different. And within blitz, you can maintain a simplified rating – like a cup.

In larger tournaments, you might not be able to complete a map for objective reasons. There's no such thing in blitz. Anyone, even the busiest player, can find a couple of hours a week... Participate – get points. Miss it – that's your problem. It's all simple and transparent.

My suggestion: keep a constant record of all stages in one table and award prizes based on the completion of the season... And to increase interest, divide the entire cup into several Tournaments (for example, five stages in each tournament) and summarize the results separately for each Tournament. Also – with awards...

The calculation mechanism is simple – and depends only on the place taken. And that's it. No complications or percentage coefficients...