Six Invitational 2021

Group Stage
Two round-robin format groups
Each group has 10 teams
All teams play each other once
All matches are Bo1
Top 4 teams from each group proceed to the upper bracket of the Playoffs
5th-9th from Group A proceed to the lower bracket of the Playoffs
5th-7th from Group B proceed to the lower bracket of the Playoffs
Scoring system: win gives 1 points and defeat gives 0 point

Playoffs
Double-Elimination bracket
All matches (excl. Grand Final) are Bo3
The Grand Final is Bo5 with unlimited overtime
The upper bracket winner will have a 1 map advantage in the Grand Final