Roulette Strategy

Online Roulette is a game of chance in the sense that it is impossible to predict on which number the ball will land. As each throw is done individually, there are few chances that the same ball will stop several times on the same number and color.

When it is your first time playing online Roulette, you should use a really safe strategy to avoid any financial loss. In doing so, you will become more comfortable, first off, but it is also a good way not to take unnecessary risks. People who bet too much take the risk of losing their bankroll very quickly. But worst: the more they want to play quickly, the more they get discouraged. It is therefore important to be in a good state of mind when you play to avoid making silly mistakes that can cost a lot in the long run.

While playing European and American Roulettes, you should bet on the "external" (Red, Black, Odd, Even…), which respectively give 48.64% and 46.37% chances of winning.

For example, if you place 1 euro on "external" on each European Roulette’s spins, after 37 of them you will end up with 36 Euros. Why? Because you will encounter the number 0 at least once, which corresponds to the casino’s advantage.

If you think that you can beat the casino at Roulette whenever you want by using martingales’ systems, think over. The only possible winner over the long term is the casino itself, given the zero benefit (and double zero for American Roulette). However, nobody said that you could not win frequently using these methods during a lucky period.

Before you begin to play, it is recommended that you read the rules of Roulette. They are not as complicated as they sound, and once you have gotten all the details, playing Roulette become much more fun. You can read them for free in our website by clicking on the posted links.

Roulette probabilities

We will try to explain the probabilities of the different combinations available in Roulette. It is actually easy to calculate probabilities and you should always do it while waiting for the ball to be thrown.

American Roulette

American Roulette has 36 numbers as well as a zero and a double zero, which means there are 38 locations to bet on. This way, if you bet on only one number, you have one chance in thirty-eight of winning.

Here are the probabilities of all possible combinations:

U.S. Roulette statistics

Red1 to 146.37%
Black 1 to 146.37%
Pair (even)1 to 146.37%
Impair (odd) 1 to 146.37%
1 to 181 to 146.37%
19 to 361 to 146.37%
1 to 122 to 131.58%
13 to 242 to 131.58%
25 to 362 to 131.58%
Any number 35 to 12.63%
Split 17 to 15.26%
Trio 11 to 17.89%
Four numbers 8 to 110.53%
Line 5 to 115.79%
Combination 0, 00, 1, 2, 36 to 113.16%

Playing on only one number gives you 35 to 1 chances of winning. Statistically, the wheel should make 38 complete spins before your number gets drawn. Two out of thirty-eight bets are favorable to the casino hence a negative margin of 5.26%.

European Roulette

European Roulette has 36 numbers as well as a zero, which makes 37 possible betting locations. This way, if you bet on only one number, you have one chance out of thirty-seven to end up with a victory.

Here are the probabilities of all possible combinations:

European Roulette statistics

Bet Winnings Probability
Red 1 to 148.64%
Black 1 to 148.64%
Pair (even)1 to 148.64%
Impair (odd)1 to 148.64%
1 to 181 to 148.64%
19 to 361 to 148.64%
1 to 122 to 132.43%
13 to 242 to 132.43%
25 to 36 2 to 132.43%
Any number 35 to 12.70%
Split 17 to 15.40%
Trio 11 to 18.11%
Four numbers 8 to 110.81%
Line 5 to 116.20%

Betting on only one number gives you one chance out of thirty-four to end up victorious. The wheel should spin 37 times before a number gets drawn. Hence a low advantage of 2.7% for the casino.


Try to avoid American Roulette if you can: its additional box, the double zero, implies that the casino’s margin will be higher. So, only try your chance at the European Roulette if you have the opportunity to.