It is not bribery when, in the final round of the single-elimination portion of a tournament, with the competition organizer’s permission, players mutually agree on a winner and how to divide the remaining prizes. In such cases, one player must agree to drop from the tournament. Prizes are then awarded based on each player’s final standing.
§ 704.5.d Tournament Rules PDF (officieel)
§ 704 Unsporting Conduct
§ 704.5 Bribery [Match Loss]: Tournament attendees and spectators may not bribe tournament players or tournament officials.