I can bet about 500k a game at cloudbet. site sucks but they have second largest limits to stake. gotta show your stats to them and deal with their host or you're wasting your time.
Well other casino can handle more than 500k max bet too if they are given limits based on their bankroll. I’m wondering if cloudbet offer 500k max bet on single pick by default account since sportsbook casino now control their limits due to the existence of arbitrage betting that using their casino to mix funds and abused their bonus rewards easily.
I heard that Duelbits has the feature to increase max bet too above 500k by arranging your limits with the help of casino support.