Where does the data for Upper Bracket Quarterfinal 4: LEGION vs TBD come from?

From PandaScore Dota 2 match records, refreshed about every five minutes. The page shows when it was last updated.

What format is Upper Bracket Quarterfinal 4: LEGION vs TBD?

Upper Bracket Quarterfinal 4: LEGION vs TBD is listed as BO3 at 1win Essence.

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Source: PandaScore · Updated: Nov 14, 10:24 PM UTC

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