<P> To date, 14 series have been broadcast, as summarised below . </P> <P> Contestant in (or mentor of) "16--24s" category Contestant in (or mentor of) "Boys" category Contestant in (or mentor of) "Girls" category Contestant in (or mentor of) "Overs", "Over 25s", "Over 28s" or "Over 30s" category Contestant in (or mentor of) "Groups" category </P> <Table> <Tr> <Th> Series </Th> <Th> Start </Th> <Th> Finish </Th> <Th> Winner </Th> <Th> Runner - up </Th> <Th> Third place </Th> <Th> Winning mentor </Th> <Th> Presenter (s) </Th> <Th> Main judges </Th> <Th> Guest judges </Th> <Th> The Xtra Factor & Extra Bites presenter (s) </Th> <Th> UK sponsor </Th> </Tr> <Tr> <Th> </Th> <Td> 4 September 2004 </Td> <Td> 11 December 2004 </Td> <Td> Steve Brookstein </Td> <Td> G4 </Td> <Td> Tabby Callaghan </Td> <Td> Simon Cowell </Td> <Td> Kate Thornton </Td> <Td> Simon Cowell Sharon Osbourne Louis Walsh </Td> <Td> N / A </Td> <Td> Ben Shephard </Td> <Td> Nokia </Td> </Tr> <Tr> <Th> </Th> <Td> 20 August 2005 </Td> <Td> 17 December 2005 </Td> <Td> Shayne Ward </Td> <Td> Andy Abraham </Td> <Td> Journey South </Td> <Td> Louis Walsh </Td> </Tr> <Tr> <Th> </Th> <Td> 19 August 2006 </Td> <Td> 16 December 2006 </Td> <Td> Leona Lewis </Td> <Td> Ray Quinn </Td> <Td> Ben Mills </Td> <Td> Simon Cowell </Td> <Td> Paula Abdul </Td> </Tr> <Tr> <Th> </Th> <Td> 18 August 2007 </Td> <Td> 15 December 2007 </Td> <Td> Leon Jackson </Td> <Td> Rhydian Roberts </Td> <Td> Same Difference </Td> <Td> Dannii Minogue </Td> <Td> Dermot O'Leary </Td> <Td> Simon Cowell Sharon Osbourne Louis Walsh Dannii Minogue </Td> <Td> Brian Friedman </Td> <Td> Fearne Cotton </Td> <Td> The Carphone Warehouse </Td> </Tr> <Tr> <Th> 5 </Th> <Td> 16 August 2008 </Td> <Td> 13 December 2008 </Td> <Td> Alexandra Burke </Td> <Td> JLS </Td> <Td> Eoghan Quigg </Td> <Td> Cheryl </Td> <Td> Simon Cowell Louis Walsh Dannii Minogue Cheryl Cole </Td> <Td> N / A </Td> <Td> Holly Willoughby </Td> </Tr> <Tr> <Th> 6 </Th> <Td> 22 August 2009 </Td> <Td> 13 December 2009 </Td> <Td> Joe McElderry </Td> <Td> Olly Murs </Td> <Td> Stacey Solomon </Td> <Td> Cheryl </Td> <Td> TalkTalk </Td> </Tr> <Tr> <Th> 7 </Th> <Td> 21 August 2010 </Td> <Td> 12 December 2010 </Td> <Td> Matt Cardle </Td> <Td> Rebecca Ferguson </Td> <Td> One Direction </Td> <Td> Dannii Minogue </Td> <Td> Geri Halliwell Natalie Imbruglia Katy Perry Pixie Lott Nicole Scherzinger </Td> <Td> Konnie Huq </Td> </Tr> <Tr> <Th> 8 </Th> <Td> 20 August 2011 </Td> <Td> 11 December 2011 </Td> <Td> Little Mix </Td> <Td> Marcus Collins </Td> <Td> Amelia Lily </Td> <Td> Tulisa </Td> <Td> Louis Walsh Tulisa Gary Barlow Kelly Rowland </Td> <Td> Alexandra Burke </Td> <Td> Caroline Flack Olly Murs </Td> </Tr> <Tr> <Th> 9 </Th> <Td> 18 August 2012 </Td> <Td> 9 December 2012 </Td> <Td> James Arthur </Td> <Td> Jahméne Douglas </Td> <Td> Christopher Maloney </Td> <Td> Nicole Scherzinger </Td> <Td> Louis Walsh Tulisa Gary Barlow Nicole Scherzinger </Td> <Td> Geri Halliwell Leona Lewis Rita Ora Nicole Scherzinger Mel B Anastacia </Td> </Tr> <Tr> <Th> 10 </Th> <Td> 31 August 2013 </Td> <Td> 15 December 2013 </Td> <Td> Sam Bailey </Td> <Td> Nicholas McDonald </Td> <Td> Luke Friend </Td> <Td> Sharon Osbourne </Td> <Td> Sharon Osbourne Louis Walsh Gary Barlow Nicole Scherzinger </Td> <Td> N / A </Td> <Td> Caroline Flack Matt Richardson </Td> </Tr> <Tr> <Th> 11 </Th> <Td> 30 August 2014 </Td> <Td> 14 December 2014 </Td> <Td> Ben Haenow </Td> <Td> Fleur East </Td> <Td> Andrea Faustini </Td> <Td> Simon Cowell </Td> <Td> Simon Cowell Louis Walsh Cheryl Mel B </Td> <Td> Tulisa </Td> <Td> Sarah - Jane Crawford </Td> </Tr> <Tr> <Th> 12 </Th> <Td> 29 August 2015 </Td> <Td> 13 December 2015 </Td> <Td> Louisa Johnson </Td> <Td> Reggie' n' Bollie </Td> <Td> Ché Chesterman </Td> <Td> Rita Ora </Td> <Td> Caroline Flack Olly Murs </Td> <Td> Simon Cowell Cheryl Nick Grimshaw Rita Ora </Td> <Td> N / A </Td> <Td> Rochelle Humes Melvin Odoom </Td> </Tr> <Tr> <Th> 13 </Th> <Td> 27 August 2016 </Td> <Td> 11 December 2016 </Td> <Td> Matt Terry </Td> <Td> Saara Aalto </Td> <Td> 5 After Midnight </Td> <Td> Nicole Scherzinger </Td> <Td> Dermot O'Leary </Td> <Td> Simon Cowell Sharon Osbourne Louis Walsh Nicole Scherzinger </Td> <Td> Mel B </Td> <Td> Rylan Clark - Neal Matt Edmondson </Td> </Tr> <Tr> <Th> 14 </Th> <Td> 2 September 2017 </Td> <Td> 3 December 2017 </Td> <Td> Rak - Su </Td> <Td> Grace Davies </Td> <Td> Kevin Davy White </Td> <Td> Simon Cowell </Td> <Td> Alesha Dixon </Td> <Td> Becca Dudley </Td> <Td> Just Eat </Td> </Tr> <Tr> <Th> 15 </Th> <Td> 1 September 2018 </Td> <Td> TBD </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> Simon Cowell Ayda Field Louis Tomlinson Robbie Williams </Td> <Td> N / A </Td> <Td> Becca Dudley Tinea Taylor </Td> </Tr> </Table> <Tr> <Th> Series </Th> <Th> Start </Th> <Th> Finish </Th> <Th> Winner </Th> <Th> Runner - up </Th> <Th> Third place </Th> <Th> Winning mentor </Th> <Th> Presenter (s) </Th> <Th> Main judges </Th> <Th> Guest judges </Th> <Th> The Xtra Factor & Extra Bites presenter (s) </Th> <Th> UK sponsor </Th> </Tr>

Who has won the x factor since it started
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