Prove yourself the Champion Tipster by picking the most winners at the Festival and you'll earn your place among the lucky racegoers at this year's Royal Ascot in June (fingers crossed punters will be allowed in, if not a cash prize alternative will be offered).
The week-long compeition starts with the first race of the Festival, the 1.20 Supreme Novices' Hurdle and there's already over £1600 in the pot for today.
It's just £5 to play. All you need to do is pick your horse for today's races. The person with the most winners on th day will take the lion's share of the pot. Play every day to play for the main prize.
Head over to your App Store to download the WhoKnowsWins app or click the link below to get started
(18+. T&C apply. Be GambleAware)