A claim has been staked for the £61.1 million jackpot won by a UK ticket-holder in Friday's EuroMillions draw, National Lottery operator Camelot said.
Subject to validation, the £61,102,442.90 prize could be paid out when banks open on Monday, the operator said.
A National Lottery spokesman said: "What an amazing win for the UK - the fourth EuroMillions jackpot to be won here this year.
"We're delighted the ticket-holder has come forward to claim their prize and their ranking of 10th place in the National Lottery rich list."
Friday's winner matched five main numbers and two lucky stars. The winning numbers were 01, 21, 26, 40 and 50, while the lucky star numbers were 02 and 04.
As well as the jackpot prize, five players won a guaranteed £1 million and a luxury trip to Australia's Gold Coast in the UK Millionaire Maker, a National Lottery spokesman said.
The latest win comes after an unnamed UK ticket-holder claimed £51.8 million on the EuroMillions in April, which followed jackpots worth £24.7 million and £24.6 million won by UK ticket-holders in February.
All three ticket-holders remained anonymous.
These big prizes are some way from being the largest for a UK winner. Colin and Chris Weir, from Largs, North Ayrshire, scooped a £161,653,000 EuroMillions jackpot in July 2011.