Players may request to a judge that a spectator not observe their match, at that judge’s discretion. 1. Players can’t request this for strategic reasons. 2. At non-local competitions, there may be additional rules for spectator behavior and presence.
§ 204.8.e Tournament Rules PDF (officieel)
§ 204 Competition Roles: Every attendee at a competition has at least one of the following roles.
§ 204.8 Spectator