"We opened up pretty much straight after [yesterday's] game finished and already you can tell that the weight of the money is going to be very much with the Germans," Mr Pearn said.
"Punters are straight on to Germany, I guess on the back of their very impressive semifinal win [a 7-1 victory], whereas Argentina were pretty sort of bland in comparison - not managing a goal and having to go to penalty shootout, whereas the Germans tore the Brazilians apart," he said.
Mr Pearn could not recall any significant bets on yesterday's match between Netherlands and Argentina and admitted the TAB had "dodged a couple of bullets" thanks to Argentina's win. "Most of the money was on the Netherlands. Right throughout the tournament, the Netherlands have been our worst result."
Argentina fan Juan Tesolin - watching with a large group of fellow countrymen at The Grand bar in central Wellington - saw his team win a tense penalty shootout.
"I haven't been able to stop screaming," he said. "We won, it's incredible."
Mr Tesolin was looking forward to the final and said Germany would provide strong opposition.
"But I think we're going to win this one."
Another happy Argentine fan, Maria La Monica, was also celebrating the win at the bar. "I can't stop laughing. Our goalie - he's a hero right now."
The country would be celebrating his goal-stopping feats, she said.