Tie-break rating: is the ranking between teams equal to determining the tie-break match. For example, there are 4 teams equal to each other, BTC will rank tie-break these teams from grade 1 to 4 to identify specific tie-break matches.
Final ranking: is the final ranking on the tournament rankings.

The tie-break group in the play-off: competing to find the teams in the play-off
The tie-break ranking of the teams by points (ranking from 01 to 04 of 4 teams is equal to the point) will be determined according to the criteria:
– Achievement of the total number of victories with the teams equal to the point. The larger the team won with the teams, the higher the tie-break ranking. This victory achievement is only calculated in the confrontation between the teams equal to each other.
Achievements against 4 teams equal to points. In the case of the same achievement, the team with better confrontation with the team and the total victory will rank tie-break higher.
After having a tie-break ranking of the teams by point, the highest ranking team will be directly into the play-off. The remaining three teams will play the Bo1 side match to find two teams in the other play-off.
Battle 1 (Bo1) Team 2 vs Team 3: The 2nd team will be chosen by the side. The winning team will go directly to the play-off, the losing team will continue to play in the 2nd match.
Battle 2 (Bo1) Team 4 vs Losing Team 1: Losing team 1 will be chosen by the side. The winning team 2 will go to the play-off, the losing team will be eliminated from the play-off.
Tie-break group relegation
The tie-break ranking of the teams by points (ranking from 01 to 04 of 4 teams is equal to the point) will be determined according to the criteria:
The total number of victories with the teams is equal to the point. The larger the team won with the teams, the higher the tie-break ranking. This victory achievement is only calculated in the confrontation between the teams.
Achievements against 4 teams equal to points. In the case of the same achievement, the team with better confrontation with the team and the total victory will rank tie-break higher.
After being ranked tie-break of the teams by points, the team with the lowest tie-break ranking will be eliminated from the tie-break and have the lowest final ranking in 4 teams. The remaining 3 teams will play the Bo1 side match to find 2 relegation teams.
– Battle 1 (Bo1) Team 1 vs Team 2: 1st team will be chosen by the side. The team winning 1 will have the highest final ranking, the loss team will continue to play in the 2nd match.
– Battle 2 (Bo1) Team 3 vs Losing Team 1: Losing team 1 will be chosen by the side. Winning team 2 will have the second highest final rank (in 4 teams equal to the point), the losing team will have the third highest final ranking (in 4 teams equal to the point).
After the end of the group stage Icon SEA SEA SEA summer 2021, teams from first to 8 will continue to participate in the autumn period of 2021.