If you are familiar with this American artiste you would know that he is a big time gambler or you can just say he is addicted. People are amazed he won such an amount of money in a single day but I'm not because there's a high chance that he has lost up to that amount or perhaps more than that if you calculate his losses combined. This win might actually be a way to lure people into gambling, it's very possible that the casino allowed it to happen for promotion purposes. It could be a way of advertising their casino what do you think about that? It's just a random thought, It's also very possible that he just got lucky.
You are forgetting that drake has also lost countless times and this information that you posted isn't something I've seen anywhere online, do you mind posting the link so we can know it's legit. Even though he's an ambassador for stake that doesn't mean that he won based on promotion or advertisment purposes, he has probably lost more than that amount of money he won, stake is known for their transparency and integrity, there's no scam zone, there are no adverts, he's just a gambler that has a lot of money to spend, not everyone is that Rich.
We do know that wins are the only ones that making up such noise or really that being known or gets listed or something that would be emphasized and this is the usual thing. If we do speak about loses then it would be kept hidden and just to make these gamblers do look like winners, but deep inside we dont really know if they are on negative or positive in regarding on what they have spend on gambling. It is really just that these amounts are something that you cant be able to see on everyday and this is why if its a life changing amount then tons of people who do get boosted up and they do believe that it could be possible.
We do know that Drake is a heavy gambling plus this one is an artist and at the same time he's an Ambassador of Stake on which we dont really know on how much he is really that getting paid.
The only things for sure that he had tons of money because if he hadnt then he wont be coming up with these kind of numbers.