I am not a student. I am an employee working for one of the partners that is organizing an arena and welcoming students and professionals to participate to that arena. I understand that I might not participate to all the arenas and will refrain from participating to the arenas I'm not explicitly invited to. I will check and verify that I'm invited to an arena before participating. In doubt, I will abstain. I understand that I will not get any prizes and that my ranking should be separated from the students.