He accumulated 820 points in his octochamp run, but went into the finals as second seed to Steven Briers (843 points). Briers however then narrowly lost his quarter-final against eighth seed Phil Watson, a match which Brittain, watching from the audience, called 'an enthralling spectacle'. Brittain then comfortably won his quarter-final against Andrew Blades, but only narrowly beat Stu Horsey in the semi-finals before he trounced an off-form Tony Warren in the final, 103 – 60.
He returned for the Championship of Champions XIII and faced one of the favourites Jon Corby, and lost with the lowest score in the competition, including the disallowed words odontal ☓, biopot ☓, ommit ☓, saloneen ☓, and his now famous conundrum offering GANDISEEG ☓.
Brittain also appeared on Brainteaser on Channel 5 in January 2007, less than a month after winning Countdown. He won the show and pocketed £1,500.
In November 2015, Brittain was arrested for assault after hitting an 18-year old ASDA shelf stacker with a wine bottle. He tracked her down to Fife and attacked her posting a negative review of his book online. He was sentenced to 30 months in prison, serving 13 of them before being released in December 2016.
|#||Date||Type||Contestant 1||Score||Contestant 2||Guest||Lex||Max|
|4188||11/09/2006||P||Sarah Duncan||67 – 116||Richard Brittain||Pam Ayres||Susie Dent||143|
|4189||12/09/2006||P||Richard Brittain||94 – 83||Claudia McQue||Pam Ayres||Susie Dent||132|
|4190||13/09/2006||P||Richard Brittain||95 – 77||Gil-Ad Schwartz||Pam Ayres||Susie Dent||122|
|4191||14/09/2006||P||Richard Brittain||105 – 68||Ali Ashman||Pam Ayres||Susie Dent||142|
|4192||15/09/2006||P||Richard Brittain||100 – 82||Henry Smith||Pam Ayres||Susie Dent||119|
|4193||18/09/2006||P||Richard Brittain||96 – 62||Jim Foster||Dr Phil Hammond||Susie Dent||122|
|4194||19/09/2006||P||Richard Brittain||98 – 31||Anne Devlin||Dr Phil Hammond||Susie Dent||117|
|4195||20/09/2006||P||Richard Brittain||116 – 66||Paul Manning||Dr Phil Hammond||Susie Dent||140|
|4257||15/12/2006||QF||Andrew Blades||52 – 96||Richard Brittain||Ken Bruce||Susie Dent||154|
|4261||21/12/2006||SF||Richard Brittain||83 – 75||Stu Horsey||Paul Zenon||Susie Dent||119|
|4262||22/12/2006||GF||Tony Warren||60 – 103||Richard Brittain||Paul Zenon||Susie Dent||118|
|4735||14/01/2009||CP||Jon Corby||92 – 52||Richard Brittain||Andrew Sachs||Susie Dent||112|