I am trying to prepare a list of students who have taken an exam to be admitted to a course. In this list, there are 20 highly-placed people and 20 candidates who got lower marks. These people will be called up for the course if any of the first list don't take up the opportunity.
I'd like to know what to call the first group:
|???? (There are twenty of these)|
|Substitute (Twenty of these too)|
All of the candidates passed the exam, so they are all "successful" in that sense; but we only have twenty places available, which will be offered in order of the mark each candidate achieved in the exam.