"The last couple of Snapper Classics (which preceded the Bonanza) didn't happen, and some people were understandably a bit wary about paying an entry fee for an event that they feared might be cancelled."
The high ratio of last-minute ticket sales could also partly be explained by the fact that some potential contestants waited to see the weather forecast for the five days.
There was no prospect of simply printing more tickets — there were 1000 competition caps, which must be worn at the daily weigh-in and prize-giving, and there would be no more.
The probable sell-out was not a bad problem to have, Mr Stewart said.
"This is the Far North's biggest event by far," he said, "and it's great news for everyone, not just us, that this year's will be the biggest it's ever been."
The competition begins on Tuesday March 20.