The Doubling System
The Doubling System is also known as the Martingale Method.
Does the doubling system in roulette really work?
The doubling system is sometimes referred to as the Martingale doubling system or the roulette doubling system. The Martingale system has some history and is a concept or idea in mathematics which can be applied as a method of gambling in roulette but the subject here is specifically "DOUBLING" in any 50/50 gambling situation.
For those of you who do not know of the doubling system it is pretty simple to grasp. The idea is that you are betting on a 50/50 bet like the toss of a coin. So each time you bet you stand to either win or lose with equal probability. And the bet is 1 to 1. I.e. you pay £1 and if you lose you get nothing and if you win you get £2. It's like you and the other player both pay £1 each. Whoever wins gets the £2.
So even odds and even money.
The simple rule is that if you won last time you bet £1 and if you lost last time you double the stakes.
More on this subject with detailed explanation and graphs at: http://www.toxicdrums.com/doubling-system.html