NewsNational LotteryLIVEUpdated 2 mins agoA massive £2 million jackpot is up for grabs in tonight's National Lottery Lotto draw tonight, with a top prize of £500,000 also on offer in the Thunderball drawA huge prize is up for grabs tonight(Image: Loop Images/Universal Images Group via Getty Images)A life-changing jackpot of £2 million could be yours in tonight's National Lottery draw - as Lotto's "biggest ever" change is set to double the number of winning millionaires.To win the jackpot, a player must match all six main numbers, with odds of about one in 45,057,474. A top prize of £500,000 is also on offer in this evening's Thunderball draw.Tonight's game will see a new two-round format every draw. This means two sets of six main balls and a bonus ball will be drawn using two separate draw machines - so players could win in round one, two, or both rounds, from a single Lotto line.View PostView PostToday18:54 BSTWhat is the largest EuroMillions jackpot ever won?In June last year, the largest EuroMillions jackpot in history was won by a ticket holder in Cork, Ireland, who took home €250 million (£215 million).Today18:49 BSTWould you go public with your win?We asked Mirror readers if they would tell their huge news to the world if their numbers came up.It's fair to say not too many of you are keen! Over three quarters - 76 per cent - responded 'no way' on our poll. In fact, just 4 per cent picked 'absolutely... I'm rich!'.Around 20 per cent said they would only tell close friends and family members if the won big, and who could blame them.Either way, it's not a bad problem to have!Today18:44 BSTOdds of wining tonight's jackpotsThe odds of winning the Lotto jackpot are about one in 45,057,474.The odds of winning the Thunderball top prize are about one in 8,060,598.Other smaller prizes, ranging from £3 to £5,000, are also up for grabs. Players have a one in 13 chance of winning any prize in each Thunderball draw.‌Today18:38 BSTWhen will tonight's draws take place?The Lotto draw, which has an estimated jackpot of £2 million, is due to take place at 8pm tonight. To win the jackpot, a player must match all six main numbers.The Thunderball draw, which has a top prize of £500,000, will follow shortly after at 8.15pm.Other smaller prizes, ranging from £3 to £5,000, are also up for grabs.Today18:35 BST'Biggest ever' Lotto draw change set to double number of winning millionairesTonight's Lotto game will see a new two-round format every draw, which will see two sets of six main balls and a bonus ball drawn using two separate draw machines.The change means players could win in round one, two, or both rounds, from a single Lotto line.‌