Mick Keeble, a chartered accountant from Ipswich was the runner-up of Series 9. He first appeared the day after David Trace completed his octochamp run, and drew his first game against Peter Conroy 42-all. He beat Conroy the following day, but lost his subsequent game to Geoffrey Taylor. Nonetheless, Keeble returned for the finals as #7 seed, beating Geoffrey Taylor in their quarter-final rematch of their earlier heat game. In the semi-final, he beat Alan Lee by a solitary point as a result of Lee's having misheard the final numbers game's target. In the final against David Trace, Keeble led by 35 points just before the end of the first half, but eventually had to settle for runner-up of the series, after Trace pulled off one of the most dramatic comebacks in Countdown history.
Keeble did not play in Championship of Champions III, but did return for the Supreme Championship, where he debuted near the beginning of the event against Clive Freedman. He was on good form in this game, equalling Freedman with words including MEANINGS and MALTIEST, and was able to push the former Champion of Champions to a crucial conundrum. However, Freedman unscrambled ARIDCHECK first to defeat him 67 – 50. Keeble and Joyce Cansfield were the only players to enter the Supreme Championship, as well as the only players to make Grand Finals, having won only one game.
|#||Date||Type||Contestant 1||Score||Contestant 2||Guest||Lex||Max|
|413||21/04/1986||P||Peter Conroy||42 – 42||Mick Keeble||Bill Tidy||Catherine Clarke||74|
|414||22/04/1986||P||Peter Conroy||50 – 60||Mick Keeble||Bill Tidy||Catherine Clarke||71|
|415||23/04/1986||P||Geoffrey Taylor||48 – 40||Mick Keeble||Bill Tidy||Catherine Clarke||69|
|439||27/05/1986||QF||Mick Keeble||52 – 42||Geoff Taylor||Bill Tidy||Della Thompson||74|
|443||2/06/1986||SF||Mick Keeble||52 – 51||Alan Lee||Bill Tidy||Catherine Clarke||71|
|444||3/06/1986||GF||Mick Keeble||74 – 80||David Trace||Gyles Brandreth, Bill Tidy||Catherine Clarke||129|
|M11||12/6/89-16/6/89||Masters 1||Mick Keeble||82 – 87||Jean Fish||N/A||Catherine Clarke||135|
|1862||18/10/1996||bQF||Clive Freedman||67 – 50||Mick Keeble||Philip Franks||Susie Dent||73|