Martingale System:

Let's begin with the most well known and simple of all strategy systems - Martingale. On the other hand, this is one of the most unpredictable system in roulette. It is all about doubling the wager after a lost bet and to go on with it until one wins again one bet. Then one starts over again and bets the same initial stakes. Player wins enough with the last bet to remunerate the loss of the previous lost bets, and is attaining an additional profit amounting to the initial bet. In theory this might be a good system though, but it often fails because the player wagered in the particular casino/game is not endlessly high, or that the player suddenly has not enough money left to double the wagers again because he was underestimating the heights of the repeatedly doubled bets. So you should calculate your bankroll when you should start in your initial bet and when it last.

The martingale roulette system is a simple doubling-up strategy, but you should know your limitations and before to play you must consider yourself how much money you want to gamble and calculate your bankroll to know many games you will attain using this strategy. The player makes his bet of one unit on an 'even-money' chance i.e. red or black, odd or even. If he loses then he places a bet of double the amount onto the same choice. If he loses again then he doubles his bet again etc. In a row of losing bets the player will be staking amounts of 1,2,4,8,16 units etc. Whenever the player wins he will start again by placing a bet of one unit.

The theory behind this system is that on an even-money chance it is only a matter of time before the player wins his bet, and when he does so he will have made a profit of one unit. For example if the player wins when he has a four unit bet on the table he will receive 8 units back for his total outlay up to that point of 7 units.