Has X Factor lost its touch? How winners are spending less time at the top

X Factor is past its peak with recent winners barely making it into the top 10 of the UK Singles Charts, according to Telegraph analysis.

Boy-band Rak-Su have been named the winners of this year's X Factor, but they're going to have to perform miracles to book the recent trend of winners' success.

Last year's winner Matt Terry saw his single "When Christmas Comes Around" peaking at a measly third in the charts.

He took the crown from Louisa Johnson, who stayed in the charts for just three weeks after a lacklustre series 12.

This compares to the heyday of the ITV show, where Shayne Ward and Leona Lewis each stayed at the number one position for four weeks. 

X Factor winners: Time at the top

Matt Terry and Louisa Johnson - the two most recent winners - are the only two winners to not make it to number one.

Judging by this year's poor X Factor ratings, Rak-Su may be on for the same disappointment that embodies the apparent dwindling success of X Factor.

Shane Ward and series two were X Factor's peak

In terms of the winning single's popularity, Shane Ward is the most successful X Factor winner to date. 

He lasted 23 weeks in the UK Singles Chart after winning the second series of X Factor with "That's My Goal", including four weeks at number one.

James Arthur claimed three weeks at number one and a total of 19 weeks in the top 100 with "Impossible" in 2012, while both Alexandra Burke and Ben Haenow achieved 14 weeks in the Singles Chart.

Matt Terry joins last series' winner, Louisa Johnson, as the only two winners failing to get to number one with their winning songs. 

Who are the most successful X Factor judges?

Last year's show, series 13, saw the return of original judges Louis Walsh and Sharon Osbourne. They joined Simon Cowell and Nicole Scherzinger on the judging panel.

Most successful X Factor judges

Cowell is so far the most successful judge on X Factor, winning three series of his own competition.

Cheryl Cole, Dannii Minogue and Nicole Sherzinger - the coach of the 2016's winner, Matt Terry - have each won the competition twice. 

The boys category has won the competition five times, while the over 25s group has won it three times.