The odds of winning in Roulette vary based on the type of bet you make. For example, betting on a single number has a lower payout but a higher chance of winning, while betting on a group of numbers has a higher payout but a lower chance of winning. The American Roulette wheel, which has two green pockets (0 and 00), has slightly lower odds compared to the European Roulette wheel, which only has one green pocket (0).