Paul Akister, Jay James, Lola Saunders and Ben Haenow are the X Factor 2014 favourites ahead of bootcamp.
Last night saw the final round of arena auditions as the 187 successful acts were whittled down to around 100 for the next stage: The Six Chair Challenge.
There we'll see the judges pick their top six acts for their category to make it into judges' houses.
Cheryl Cole has the Girls, Mel B the Boys, Louis Walsh the Groups and Simon Cowell and the Overs.
And it seems that each category has a potential winner, with Boys' Paul Akister currently leading the odds as the 4/1 favourite, with Overs member Jay James right behind at 9/2.
Ben Haenow, also part of the Overs, is at 6/1, together with Girls category singer Lola Saunders.
Only The Young are currently the best shot for the groups at 9/1.
“Paul and Jay have the early lead in the betting but after tonight’s emotional audition, Lola is breathing right down their neck,” said William Hill spokesman Joe Crilly on Sunday night.
Who is your X Factor favourite at this point?
Vote for your which category you think is the strongest in our new poll here:
X Factor 2014 continues on Friday on ITV with the start of bootcamp.
Browse pictures of the weekend's X Factor 2014 auditions below...