John Jeffrey was a quarter-finalist in Series 51.
He debuted on 2 April 2004 in the champion's chair and won seven games in a row, scoring a century in his seventh game. An unfortunate wrong answer of intimidated ☓ to the crucial conundrum ANTETIMID dramatically cost him octochamp status.
Nonetheless he qualified for the finals as #6 seed. In a close game against Gary Male, he failed to score in any of the numbers rounds, but took him to a crucial conundrum which Male solved incorrectly. Heffrey missed his last chance and narrowly suffered his second defeat on Countdown.
|#||Date||Type||Contestant 1||Score||Contestant 2||Guest||Lex||Max|
|3674||2/04/2004||P||John Jeffrey||86 – 43||John D Hall||Philip Franks||Susie Dent||134|
|3675||5/04/2004||P||John Jeffrey||81 – 72||James Nunan||Emma Forbes||Susie Dent||129|
|3676||6/04/2004||P||John Jeffrey||85 – 68||Anne Callender||Emma Forbes||Susie Dent||133|
|3677||7/04/2004||P||John Jeffrey||86 – 69||Leon Lewis||Emma Forbes||Susie Dent||133|
|3678||8/04/2004||P||John Jeffrey||96 – 55||Dwain Tudor||Emma Forbes||Susie Dent||119|
|3679||9/04/2004||P||John Jeffrey||85 – 66||Colin Jacobs||Emma Forbes||Susie Dent||130|
|3680||12/04/2004||P||John Jeffrey||107 – 51||Hilary Halter||John Craven||Susie Dent||122|
|3681||13/04/2004||P||John Jeffrey||67 – 74||Sean Jessop||John Craven||Susie Dent||118|
|3724||21/06/2004||QF||John Jeffrey||71 – 79||Gary Male||Martin Jarvis||Susie Dent||122|