Winter Championship for Heroes 3 [Kyiv-2014]

First, you should determine the minimum number of participants required for the event to take place.
Based on my own experience with similar events, only those who have been financially involved from the beginning will participate 100%. That is, those who paid the deposit and bought tickets. In short, showing a ticket scan confirms their place on the list.

Attention, Ukrainian students: when purchasing train tickets, you are entitled to a discount of approximately 30% of the cost upon presentation of a student ID.