Financial models are used by firms such as investment banks to calculate, forecast and estimate financial numbers.
More than 2000 contestants competed in the first round of ModelOff, while only 200 passed through to the second.
Gordon said he was up against a strong, international group of competitors but he'd give it his best shot. A trip to New York was a pretty good prize on its own, he said. "I've never been that far before."
Picot, 25, who works on First NZ's investment banking team, said he was surprised to have made it into the final.
"I wasn't taking it particularly seriously," he said. "In the second round I didn't really do any preparation or anything but I thought I'd better give it the full face of the bat."
The other finalists come from Australia, the US, Britain, Russia, Canada, Poland and Hungary.