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I wouldn't go so far to call the current implementation 'improper'. Although I can certainly agree that it would be nice to have that feature, it is absolutely normal in real live matches to finsh group play before moving on (think about soccer world championship), and also it is not at all easy to calculate when a group is 'decided'; there are constellations where it would take significant effort. Of course a simple algorithm could probably catch 90+%, and that would do.
O čem je toďten plk: Re: Why does the software allow this tournament to still be in round 1?
Aganju: I think I'm OK with the words I used, but I do see your point.
In order to implement an online turn-based tournament properly, a site needs to advance rounds when the players who will advance are determined, regardless of whether or not there are 'meaningless' games remaining, especially when those 'meaningless' games can take a significant time to complete. This site doesn't do that.