Excuse my appalling maths; and also my audacity to even propose a Roulette 'system'. I understand the concept that each roulette spin (if we disregard 0, and bet on a 2 to 1 option) is 50/50. It has no memory of previous spins. However, can probability not be determined by the amount of spins? Since it usually even out (or somewhat) to a 50/50 ratio. With that in mind, and adapting the Marlingale system, I wanted to see what the thoughts of this system is: Online betting (where there is no minimum), and document the cases of Red/Black, Evens/Odds. Bet 10p on both Red AND Black; this allows you a move to 'forecast'. If you lose, it is only 20p (by getting 0). Then, once you have 4 reds come up, for example, then you could bet black and then utilise the Marlingale system of doubling up. In my mind; probably due to my limited maths, this works. I tried this with £50, and within 2 hours I had £2000. I know that some will not believe that, and I only use it as an example of the system in use, not to brag (since I do not know anyone here). I admit it could be luck; but probability wise, its not likely to get 5 reds in a row rather than a black? Thanks for any input here; and please note that I set myself a £50 limit purposely to avoid life altering losses or the such.