The talent show finalist appeared at the Liverpool Empire yesterday (December 4) with mentor Gary Barlow in front of 1,500 fans.
Insiders have claimed that the majority of fans in attendance were pensioners, including Maloney's 76-year-old gran Pat O'Brien.
Fans were asked to provide their age when applying for free tickets, with the average age said to be 82, according to The Sun.
"He's a favourite of the older generation, but we were amazed by how many pensioners wanted to support him at his gig," said an insider.
"It seems a lot of them are also spending their pension voting for him - and he could win the show off the back of them."
Further insiders have previously claimed that Maloney was not just receiving votes from his home city of Liverpool.
James Arthur has also returned to Middlesbrough for a homecoming gig, while Jahmene Douglas will perform in Swindon tonight.
Maloney will battle it out with Douglas and Arthur for this year's X Factor crown on ITV1 at the weekend.
Watch Christopher Maloney's recent chat with Digital Spy below: