A Wisbech woman won more than £20,000 on Monday last week at the town’s Winners Club at the Empire Theatre.
The 63-year-old lucky winner, who wishes to remain anonymous, won the national game in just 41 numbers.
She has won £20,000 along with the £33 house prize. The woman paid a £1 stake.
A club statement said: “The 63 year old, who has played regularly at the club for nine years, was delighted with her win as it is the largest prize she has ever won.
“The national game is played nightly by hundreds of clubs around the country for prizes up to £25,000.”
The Winners Club is open five evenings per week and two afternoons.