When I was doing drumline stuff, we had a phrase, "Don't self cut." As in, don't remove (cut) yourself during the audition process, let somebody else do it for you. Stick around, finish the audition no matter what, hang it all out, and let the chips fall where they may.
You wouldn't believe the number of people that would spend months preparing for an audition, and then in the middle of the process, leave because they were convinced that they had no chance of making the ensemble. Many of these people would have been awarded spots if they had just stuck around long enough to finish the audition.
If it's up to me, I prefer to let regulatory agencies make these types of determinations. You risk nothing by losing because you're in the same position you were when you started, and stand to gain everything if you get an award in your favor.