Roulette Wheels

The roulette wheels used in most reputable casinos are built to very close tolerances and balance. They are also checked every twenty-four hours. In those casinos with several wheels, the usual practice is to move the wheels from table to table to foil any player who may have found a pattern in the wheel at a particular table.

Human Bias

Professional roulette players try to find any way of beating the odds and upsetting the house advantage. One way is through the mechanical device of checking for a bias. Another way is through human bias, that is, checking for predictable characteristics in the way a particular dealer spins the wheel and drops the ball. It’s natural. In repeating the same motions over and over for hours and days and weeks, a dealer is likely to develop a certain style, which may mean that he tends to spin the wheel and drop the ball in the same way and at about the same speed. If a player studies a particular dealer long enough, he or she may detect predictable styles. Then, when the ball is dropped, if the player can calculate quickly enough where it’s most likely to land, based on that dealer’s style, and place bets on the several most likely numbers, he or she can perhaps beat the odds. The edge may be small, but it could pay off.