In roulette, on a single zero wheel the odds are 2.7% and on a double zero wheel, the odds are 5.26. The house edger always remains constant, because roulette, unlike other casino games, is always a game that is based on chance alone. One spin of the wheel has nothing to do with the previous one. It is like the flip of a coin, where every time you flip the odds are exactly the same, regardless of what happened on the previous toss.
Many experienced players prefer to stay with the outside bets. Although the payouts in these bets are smaller, there is also more chance of winning. However, in the end, the only way to raise your chances of winning with a certainty is to play only on single zero wheels and to eschew the double wheel games. The odds are cut by half, and it eliminates the bad five number bets.
Another way to improving your odds in roulette is to play in casinos that offer the "surrender" rule. It applies only to outside even money bets: red/black, high/low and odd/even. In these instances, the house edge is cut drastically, to about 2.7%. However, be aware that this rule is rare in casinos offering the single zero wheels, where the house edge is already 2.7%. Written By Edgar Marx, Odds Consultant. 12.12.05