From Liquipedia Dota 2 Wiki
The Bigpoint Battles are a series of monthly Dota 2 cups organized joinDOTA and sponsored by Bigpoint. The cups are played in a single-elimination format with Bo3 matches with a Bo5 finals.
- 512 Team Open Qualifier
- 512 teams sign up and are seeded into a single-elimination bracket.
- Round 1-3 Bo1, Round 4-5 Bo3.
- 16 Team Main Bracket
- 8 Invited Teams are seeded against the winners of the Open Qualifier.
- Bo1 matches, Bo3 Grand Finals.