As far as i know the studio or teacher has no control of what heat the the student is entered. We know the age level and division (Int, American, New comer, Bronze, silver, gold, etc..) where they will be competion but you really don't find out the amount of people that enter until you get to the competition and look at the program. One year my student had very little competion and the next year she had a semi-final, so it varies depending on the size of the event and how many people from the same level enter the competition.