That is a good summary, but it is a little bit more complex than what you have stated. But your comment is helpful because this is exactly the understanding that Goldbloom has and it is incorrect in an important way.

The 23 entries that were submitted are for the public leaderboard set. The purpose of this set is so over the duration of the competition, competitors can see how they are performing relative to each other. These 23 submissions have no impact on the final prize winners.

A different data set, called the final data set is what actually determines the final prize winners. I submitted this file exactly one time. It was processed and scored by Kaggle and I followed the directions exactly as the competition admin stated. I did not check a checkbox because I did not believe it applied - I only submitted a single file and I recieved the 'all zeros' response from Kaggle's system as it said it would.

Also, the text Anthony quoted is not applicable to the Flight Quest competition either. This is the text that is used for the single phase competitions, not a two phase competition like Flight Quest.

If you haven't competed before I know the difference might not be clear. But if you read the response from the other competitors in the forum, you can see there is general agreement that the submission page is faulty for a two phase competition.