Still haven't understood it so don't take my word for it, but I guess that depends on luck and number of entries you make.
Luck, yes.
Depends on number of entries: no. Each of the entries have the same winning chance.
All will be clearer once we have a closed tournament.
Tip: if your entry just barely drops out of the winning range, also known as bubble in poker term, make a few more entries so that the number of winners increases.
Anyhow lets say if my position is in winning stage, and then alot entries coming and my position drop out..
Is it possible that entry will back to winning place again if the number of winners increases?