Is it possible for a casino to go bankrupt because a player gets a very big win?
I think maybe that's hard to happen if we look at casinos that are already big and well known. But suppose there is a new casino, and there are some players who are very good at playing, so they can win continuously, can the casino go bankrupt? or do they already have an algorithm or a way so players can't keep winning?
Technically it could be possible but I think the casino would have to be quite small for that to happen. Big casinos have a lot of funds and even investors backing them, should they need a loan or something. In a hypothetical situation that a billionaire like Elon Musk or Bill Gates decides to gamble a few billion dollars on a high risk game with a high reward, and win, then yes, the casino will be in big trouble.
But usually casinos know and watch over their risks and always have some kind of back up plan in case something like a big win happens.
We do hear from time to time casinos withholding winnings for a long time, and people suspect it is because they cannot immediately pay out the large winnings all at once... Although eventually the winnings are paid out.