Students who are registered to attend the state conference are registered for their main event and Open Events. Open Events are the only additional competitions a qualifier may compete in at the state conference.
All Open Events have the word "Open" in the title of the event name. Any student may compete in any of these events as long as they are registered for the conference. They do not have to sign up for any of these events in advance. Furthermore, they did not need to place in the event at a previous level to compete in it at a higher level.
NOTE: Students cannot sign up for a main competition at the state conference if they did not qualify to compete in the event.