To fully understand the odds and probabilities involved in roulette, we must also examine another factor. The payout percentage is typically displayed as a ratio to the amount wagered, while the odds are typically displayed as a percentage. In American roulette, for instance, a straight-up bet on a single number has odds of 37 to 1 despite there being 38 possible outcomes. Roulette’s odds inform you what your potential payout will be for a given wager. Is it possible to win playing roulette?.What are the odds of me hitting red or black?.Is it Possible to Improve your Chances while Playing Roulette?.