However, it's important to note that the house always has an edge in roulette, as with most casino games, to ensure that over time, the casino will make a profit. Outside of a poorly trained or bored dealer spinning the wheel and ball exactly the same, with exactly the same release, Roulette is random.

Martingale is definitely one of the most widely known and most successful roulette strategies (for some it is the best roulette strategy), and it is very simple to apply. It can be used only for outside bets, those that provide almost 50% chance of winning, and excluding the 0.