The tournament is divided into junior and senior divisions, and participation in a division depends on the ages of the students of a team. Participants who are 14 years of age or older are classified as a senior. In the 2017 Hanoi Global Round, a new Skittles Division, was formed, for kids aged 8-12. In regional rounds, both divisions participate separately but simultaneously, while global rounds have the events of each division staggered, where the junior division competing in an event a day before the seniors' event. Closing ceremonies are held separately as well.