Martingale Double Downs Explained. With this system, you double your opening bet until you earn the same amount. Effectively, you are staking 2x the amount of your previous bet.

Basic Example of the Martingale System . To understand the strategy, let's look at a basic example. Suppose you have a coin and engage in a betting game with one friend of either heads or tails ...

The anti-Martingale system is a trading method that involves halving a bet each time there is a trade loss, and doubling it each time there is a gain.