Charles Wells might not have had the best reputation but he was good at roulette. One evening in 1891, Charles went to the world-famous Monte Carlo Casino Resort and started playing roulette enjoying a winning streak of a lifetime (winning 23 out of 30 consecutive spins).

In roulette, the best odds are generally associated with the even money bets, such as red or black, odd or even, and high or low. These bets have the highest probability of winning, at nearly 50%, and offer a 1:1 payout.

In several studies, offline gamblers are defined as those who engage only in offline forms of gambling, but those who are defined as online gamblers do not necessarily restrict their gambling to the Internet. Typically, these online gamblers have been people who play in both online and offline contexts.