Wagner Carillho remains one of the bookmakers' favourites for the chop with odds of 5/2 on Paddy Power, despite a recent online campaign to save the Brazilian singer.
Girlband Belle Amie also look to be in danger and are lacking support from punters at the moment. They are currently the 2/1 favourites for the axe on Sunday, followed by cinema worker Paije Richardson at 5/1.
Matt Cardle's cover of Britney Spears on last weekend's Guilty Pleasures show improved his odds from 5/2 to 6/4 and he is now the outright favourite for the title.
Aiden Grimshaw's odds have fluctuated week-to-week and punters can currently have a flutter on him at 16/1. He was previously as short as 4/1 for the win, but has lost support since his opening week performance of 'Mad World'.
One Direction (11/4), Cher Lloyd (9/1) and Mary Byrne (6/1) remain popular in the betting market, while Rebecca Ferguson is now ranked at 4/1 for the win.
Katie Waissel is still way out at 33/1 to triumph, while Treyc Cohen has slipped to 40/1 after being in the sing-off last weekend.
The X Factor continues on Saturday at 8pm on ITV1.