Flocking to the betting sites Sportsbet and TAB, which have been predicting the winners of reality shows for years, Blockheads have placed winning odds on one couple in particular.
On both sites, Tom and Sarah-Jane have been listed as the predicted winners, with odds of $2.00 on both Sportsbet and TAB.
However, in a surprising twist, Omar and Oz have jumped up to first place, with odds of $1.33 on Sportbet just hours out from the finale.
Sportsbet now lists, Tom and Sarah-Jane as coming second with odds sitting at $6.00, and Ryan and Rachel coming third with odds sitting at $10.00.
Both sites have listed Dylan and Jenny as coming in fourth and Ankur and Sharon as coming last.
When the season premiered, fans believed Dylan and Jenny were going to be the ones to beat with their building experience. However, they have been bumped out of the top spot on both sites.
"My dad is a builder and I have grown up watching him," Dylan told Nine. "Now that I'm a builder it felt natural to apply for The Block as it's something I have always wanted to challenge myself with."
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Jenny is also a tradie who wants to show young girls that the building industry isn't just for men.
"When I tell people I am doing my apprenticeship they always say you don't build, you don't do anything. But I do – I do everything," she said.
The stars are also engaged and hoping to wed in March next year, while also building their "dream home in Palm Beach".