Overview of the Rules for the 2nd Oiu League

The number of players in each class from Master and above is as follows:
S Class: 6 players
Challenger: 18 players
Master: 24 players



In the 2nd Oiu League, A class and above will compete in a sequential league format:
A Class → Master → Challenger → S Class.
Even if you start from A Class, it is possible to make your way up to S Class based on your performance!
Note: Even if a player is promoted from A Class to Master, they may withdraw before the start of the next class due to sudden schedule changes or health reasons.
The league will proceed according to the schedule shown in the next image.


Before the main league begins, there will be Challenger Playoff Match and Challenger Qualifying Tournament.
The rules for the Challenger Playoff Match are shown in the image below.

Details for the Challenger Qualifying Tournament are also shown in the image below.


This time as well, we will include a Top-Class International League slot.

Detailed Rules for the 2nd Oiu League

In the 2nd Oiu League, we will also be using Discord to share announcements from the organizers and to allow communication between players.
Additionally, there are channels where players can seek out matches.
Even if you are not participating in the Oiu League, feel free to join the Discord server if you’d like to find matches!
Oiu League Discord Server