The most common betting systems that players use for roulette are geared towards Red and Black, but after that it is probably the Dozens and Columns. To cover. Roulette is a negative expectation game. On the American double zero wheel, the house has a edge and there is no betting strategy or. Roulette Betting Strategy - Roulette is a game of pure chance, but it's important to know how to bet and when to cut your losses before the wheel stops. Learn to.