The actual odds of winning are thus 37 to one, 38 to one, or 39 to one, not 36 to one.' 'However, roulette wheels also have a zero, and sometimes they have a double zero and even a triple zero. 'A roulette wheel is numbered from one to 36, so you might think this puts the odds for winning a single number bet at 36 to one,' Maverick writes. Maverick reports in Investopedia, the house has a 5.26 % edge on an American roulette wheel, a percentage that's much higher than other games like blackjack. The odds of winning at a casino are not very good at all.