Mastercup SEA 2023 is a championship organized by GEMS in association with Events Kenair. There are 8 teams from Southeast Asia competing in the tournament. The prize pool is around $30,000. 

Participants:

• there are 8 teams participating in the tournament;
• 6 invited teams;
• 2 teams from qualifiers.

Playoffs - 05.07.2023 - 30.07.2023:

• double-elimination system;
• games in the Lower Bracket semifinals, Upper Bracket finals and Grand Final were in BO5 format. All other games in BO3.

Significant events:

• UD Vessuwan (Interactive Philippines and Made in Vietnam) could not participate in the Lower Bracket semifinals. So they were replaced by MANTA Esports, even though they were eliminated earlier.