The Christmas Eve National Lottery jackpot will be £20.6 million after nobody scooped the competition's top prize on Wednesday night.
The winning Lotto numbers were 22, 52, 13, 35, 10, 42 and the bonus number was 27, National Lottery operator Camelot said.
Set of balls number six and draw machine Lancelot were used.
One ticket holder took the next best prize - matching five balls and the bonus for £52,224.
Nobody matched all five numbers in the Lotto HotPicks to take home £350,000, although one person won the £500,000 Thunderball prize.
The winning Thunderball numbers were 18, 13, 04, 02, 05 and the Thunderball number was 13.