How does the Challenge lobby work?

The challenge lobby looks like a regular game lobby but with differences: both teams are shown in a VS layout, there is no public registration or invite banner, and the organizer can generate the schedule and distribute rosters.

After both teams are ready, the organizer generates the schedule and the game proceeds like a regular competitive match, with score tracking, result verification, and rating changes. If the event is cancelled, all action buttons are hidden and “Event cancelled” is displayed.