There are four contests during the regular season. The window during which each contest can be accessed on HackerRank is as follows.
Contest #1: available Nov. 1, 2023; closes Sunday January 14, 2024 @ 11:59pm EST
Based on the scores during the regular season, top students in all divisions will be invited to participate in an online Finals competition:
Invitations E-mailed: May 1, 2024 through May 16, 2024
Invitational Finals: Saturday, May 25, 2024 (Memorial Day weekend in the United States)
There is a nominal per-student registration fee to participate in the Finals.
More details are available in the Finals page.