Entrants are sorted based on the most recently issued tickets first and whilst the number of tickets each entrant has is displayed next to the entrant, this number doesn't necessarily reflect the number of tickets just purchased.
For example, if an entrant purchased 5 tickets 1 week ago, their name will appear further down in the entrants list with a ticket count of 5. If the same user purchases 1 more ticket now, the entrant will be displayed at the top of the list and the ticket count will show 6. This means that that entrant has a total of 6 tickets, and not that the entrant has just purchased 6 tickets.