What are the chances of winning the 'must-win' Lotto jackpot?

Given the likely increase in the number of people buying a Lotto ticket for this draw, the chance of it being won by someone matching five numbers plus the bonus is 'almost certain'.

It’s been more than 60 draws since the Irish Lotto was won, but someone is definitely going to win Saturday’s €19.06m jackpot after the National Lottery received regulatory approval to hold the “must-win” draw.

So, if as has happened for every lottery draw since June, no ticket holder matches the first six numbers in the draw, then it will revert to the next highest prize tier – five numbers and the bonus, and so on until a winner is found.