Oracle's favouritism was as much a reflection of the amount of money bet on them as their dominance on the water yesterday as they closed the score to 8-5 in the race to nine wins.
"It's not only the likely outcome, it's also where the money is going," Mr McAnulty said. "The big story here is that we are just taking so much money on Oracle.
"It is mayhem here."
The TAB stands to make a huge loss if Oracle does complete the fairytale comeback. However, Mr McAnulty was confident Team Zealand would get the job done.
"For us, with Team New Zealand needing only one race, $1.37 is a good price. But punters say they want Oracle. The last 30 bets in a row have all been on Oracle to win the America's Cup. That is amazing as we had closed this book.
"Oracle have won four in a row now. I know things have gone against Team New Zealand but that just adds to the drama of the tournament.
"To think that we have gone from almost capsizing to almost winning it only to be called back because it took too long, it's quite phenomenal really."
Many punters were likely backing Oracle so they would at least make some money if the worst happened and Team New Zealand lost.
"'If New Zealand is going to lose I may as well make some money out of it' was a common approach," Mr McAnulty said.
"It's funny how people think when it comes down to the wire. But, look, this is 8-5 now. It is genuinely anyone's game.
"I'd be putting a pretty hefty amount on Team New Zealand. But at the moment it is a steady tide on Oracle."