She has also been a finalist in Mastermind and Fifteen to One. She first appeared in Series 1 where she drew with Joyce Cansfield in her first game, and then won their subsequent encounter which was followed by two more wins. She retired from the series unbeaten before coming back to take part in Series 6. She won seven consecutive games before retiring unbeaten again, one game short of becoming an octochamp. However, her seven wins and 437 points were enough to see her back in the finals as the number one seed, ahead of octochamp Darryl Francis, who only achieved 436 over eight games. (This was before the rules were changed so that number of wins took precedence over points.)
Grayson's points total of 437 stood as the all-time record until Harvey Freeman scored 523 in Series 10, despite the fact that she played only seven games. Even more remarkably, the aggregate maximum score (maximum octochamp total) for the eight-game string beginning with Grayson's Series 6 debut had been only 551 points -- the lowest in history. Grayson achieved 90.3% of the points available to her, a percentage comparable to Kirk Bevins in the 15-round era.
Helen convincingly beat Peter Hillman 54 – 18 in her quarter final match before a surprise defeat in the semi-final to Olivia Lloyd, the player she beat to start her winning run in Series 6. She also beat Stephen Deakin in series one of Countdown Masters and Philip Nelkon in Series 2 but did not feature in a Championship of Champions tournament or the Supreme Championship. She has one of the most impressive records of anyone not to win a championship.
Grayson sadly died in October 2013.
|#||Date||Type||Contestant 1||Score||Contestant 2||Guest||Lex||Max|
|8||15/11/1982||P||Helen Grayson||?||Joyce Cansfield||Kenneth Williams||??|
|9||16/11/1982||P||Helen Grayson||?||Joyce Cansfield||Kenneth Williams||??|
|10||17/11/1982||P||Helen Grayson||?||Jack Baker||Kenneth Williams||??|
|11||18/11/1982||P||Helen Grayson||?||Gail Cooper||Kenneth Williams||??|
|267||20/02/1985||P||Olivia Lloyd||42 – 62||Helen Grayson||Richard Stilgoe||Yvonne Warburton||69|
|268||21/02/1985||P||Helen Grayson||69 – 28||John Elliott||Richard Stilgoe||Yvonne Warburton||70|
|269||22/02/1985||P||Helen Grayson||56 – 45||Diana Gritt||John Junkin||Yvonne Warburton||68|
|270||25/02/1985||P||Helen Grayson||66 – 17||Ian Shepherd||John Junkin||Yvonne Warburton||69|
|271||26/02/1985||P||Helen Grayson||69 – 39||Malcolm McMaster||John Junkin||Yvonne Warburton||71|
|272||27/02/1985||P||Helen Grayson||55 – 27||Danis Ullah||John Junkin||Yvonne Warburton||68|
|273||28/02/1985||P||Helen Grayson||60 – 17||Neil Harris||John Junkin||Yvonne Warburton||69|
|282||13/03/1985||QF||Helen Grayson||54 – 18||Peter Hillman||Richard Stilgoe||Julia Swannell||68|
|286||19/03/1985||SF||Olivia Lloyd||59 – 53||Helen Grayson||Richard Stilgoe||Julia Swannell||74|
|M2||10/4/89-14/4/89||Masters 1||Stephen Deakin||94 – 98||Helen Grayson||N/A||Catherine Clarke||139|
|M104||25/3/91-29/3/91||Masters 2||Helen Grayson||81 – 78||Philip Nelkon||N/A||Freda Thornton||???|