There are many factors to consider when trying to answer this question, such as the number of bettors in a given game, how often the ball lands on specific numbers, and the dealer’s percentage. However, one study that looked at data from over 1 million games found that the average roulette player would expect to win just over 36 percent of their bets. That means that on average, players will lose around $0.65 per bet.
In other words, if you put $100 into a roulette game and expected to come out ahead after playing for 10 minutes, you would have lost $3.60 by the time you finished playing.
