The Powerball jackpot has soared to an estimated £503million ahead of Thursday morning's draw – the biggest lottery jackpot ever available to UK players. The biggest Powerball prize ever won was an astonishing $2.04billion, scooped by a player in California in November 2022. The biggest prizes so far have come from matching four main numbers and the Powerball, with wins reaching £70,195.50. To win the jackpot, players must match all five main numbers and the Powerball. Unlike the traditional National Lottery, the Powerball jackpot is paid to a UK winner over 30 years.