More than 20 new millionaires have still to come forward to claim the life-changing prize they won in Friday's record-breaking Olympics lottery draw.
Lottery operator Camelot said 79 winners of the 100 £1m prizes in the EuroMillions Millionaire Raffle draw have claimed their cash.
It is the first time so many new millionaires have been created in one night and smashes the previous record of 25 millionaires made on December 23 last year.
Friday's special draw was held to mark the Olympics opening ceremony.
Those who missed out on the 100 million-pound prizes will have the chance of an even bigger payout on Tuesday when the EuroMillions jackpot will be at least £119m.
If one British ticket-holder were to win the lot they would claim second place in the National Lottery's rich list, Camelot said.
A National Lottery spokesman said: "Friday night was massive for the nation and was even bigger for our 79 new millionaires.
"We urge all players to check their tickets to help us push this record even higher.
"Tomorrow also promises to be an amazing night with a £119m EuroMillions jackpot up for grabs.
"In addition to creating so many overnight millionaires, these big draws help boost the £30m plus raised for National Lottery Good Causes by players every week."
The UK seen a flurry of £100m plus jackpot winners including Colin and Chris Weir, from Largs in North Ayrshire, who claimed £161m in July 2011.
An anonymous ticket holder banked £113,019,926 in October 2010 and Dave Dawes and his wife Angela, from Wisbech, Cambridgeshire, claimed £101,203,600 last October.
However, Camelot is still seeking the holder of a Euromillions ticket bought in the Stevenage and Hitchin area of Hertfordshire which won more than £63m in the June 8 draw. They have until December 5 to claim their prize.
The operator's website also lists four other Euromillions £1m prizes which remain unclaimed.
Players can check to see whether they are a millionaire by going to www.national-lottery.co.uk or visiting any National Lottery retailer.