There are still 21 missing millionaires from Friday's record-breaking Olympics lottery draw, Camelot said today.
So far, 79 winners of the EuroMillions Millionaire Raffle draw have come forward to claim their £1 million prize - smashing the previous record of 25 millionaires made in one night on 23 December last year.
The National Lottery is still searching for 21 missing winners. One hundred ticket-holders each won £1 million in the special draw to mark the Olympics opening ceremony.
Tomorrow's EuroMillions draw sees a massive £119 million jackpot. If one British ticket-holder were to win the lot tomorrow night they would be in 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 £119 million EuroMillions jackpot up for grabs.
"In addition to creating so many overnight millionaires, these big draws help boost the £30 million plus raised for National Lottery Good Causes by players every week."
Players can check to see whether they are a millionaire by going to www.national-lottery.co.uk or visiting any National Lottery retailer.