Some Leaving Cert students who get the points needed for their course, may still miss out through a lottery system.
Tens of thousands of them are set to receive their first-round CAO offer this afternoon from 2 o'clock.
A random selection process is expected to be used for students who've applied for some high-points courses, and are just on the cut-off point.
Education Editor with the Irish Times, Carl O'Brien, says grade inflation is one of the reasons for this.