She is also a Scrabble Expert. Her husband, Mauro, is Chair of the London Scrabble League, and appeared Countdown himself, 22 years later in Series 65. Her two daughters, Jessica and Natasha went on to appear on Countdown in 2012 and 2017 respectively in Episode 5555 and Episode 6542.
She, along with the rest of the Pratesi family, made their CO-event debuts at COLIN 2012.
|#||Date||Type||Contestant 1||Score||Contestant 2||Guest||Lex||Max|
|914||12/09/1989||P||Diane Pratesi||57 – 45||Margaret Budden||Richard Stilgoe||Della Thompson||95|
|915||13/09/1989||P||Diane Pratesi||59 – 34||Christopher Quartermaine||Clement Freud||Freda Thornton||71|
|916||14/09/1989||P||Diane Pratesi||48 – 60||Richard Evans||Clement Freud||Freda Thornton||83|
|M51||19/3/90-23/3/90||Masters 1||Diane Pratesi||85 – 68||Jean Shaw||N/A||Catherine Clarke||134|