This is more like entry for the lottery is randomly selected which amount to lesser numbers of players from the original pool of those who signed up. Also for winners or those successful, the reward is yet going to be shared by random if I get the mechanics correctly?

So for me regards to those selected for rewards, I believe there should be a lucky deep for them assuming they have to be physically present but if online, there should be another mechanics that could get them involved like another number selection on variables available like first, 2nd , third etc, I think that would create addiction excitement rather than a monotonous contract random selection.