Vernon Kay has also made a leap closer to the frontrunner position, with current odds of 6/1, according to Ladbrokes.
North is one of the celebrity contestants taking part in this year’s show, which is set at a derelict Welsh castle instead of the usual Australian bush.
Other celebrities taking part are: former Strictly pro AJ Pritchard, EastEnders star Shane Richie, broadcaster and journalist Victoria Derbyshire, former EastEnders actor Jessica Plummer, TV presenter Vernon Kay, former Coronation Street star Beverley Callard, and singer Russell Watson.
Read more: Where is I’m a Celebrity 2020 filmed?
“Jordan’s holding on to favouritism for the time being, but it looks like Giovanna and Vernon are going to push him all the way in the final week,” said Ladbrokes spokesperson Jessica O’Reilly.
See the full list of current odds from Ladbrokes below:
Betfair spokesman Sam Rosbottom said: “It is fast becoming a two horse affair in the winners market with Jordan at 11/8 and Giovanna at 9/4 miles out on their own - well ahead of third favourite Vernon and the rest of the chasing pack.”
The Betfair odds are as follows:
Jordan North: 11/8
Giovanna Fletcher: 9/4
Vernon Kay: 6/1
Mo Farah: 7/1
Shane Richie: 8/1
Jessica Plummer: 40/1
AJ Pritchard: 55/1
Beverley Callard: 80/1
Victoria Derbyshire: 80/1
Russell Watson: 100/1
I’m a Celebrity… Get Me Out Of Here! continues each night on ITV at 9pm.