Score Attack has Leagues, which are further divided into multiple Groups.
Participants are randomly assigned to a Group and compete for ranking within that Group.
You can check League details via the Rewards screen.
Higher Leagues may be added in the future.
■ Promotion, Retention, and Demotion
After each weekly evaluation, your League placement is determined by your ranking within your Group.
The number of players promoted, retained, or demoted varies by League.
Players who do not participate in Score Attack at least once before the weekly evaluation will be demoted by one League.