Only one ticket can be applied for per IDO. Winners will be chosen at random from the pool of tickets, the same as with a conventional lottery. Winners will be contacted through their registered email with further instructions on how to proceed. If you win an IDO, you are automatically put in a cooling phase for 10 days, where you cannot participate in other IDOs during this time. The feature is to give other users a chance to successfully participate in IDOs. Once your cooling phase is complete, you can again take part in an IDO.