How does the organizer (hosting) streak work?
Your hosting streak counts how many weeks in a row (Monday–Sunday) you’ve hosted at least one game. Your current and best hosting streaks appear on your Home screen header and in the streak popover.
Unlike the player streak, the hosting streak is strict, there is no freeze: a full week without hosting resets it to zero, because hosting is something you control. You’ll get a “streak at risk” reminder if you haven’t hosted by late in the week, and milestone weeks are highlighted. To protect it, schedule at least one game every week.