How to win at roulette

According to official science, roulette can only be beaten in two ways:

1. Instrumental physical prediction
2. Searching for faulty roulette wheels

Instrumental physical prediction is perhaps the only technique for winning at roulette that casino owners truly fear. It comes into play after the ball has been launched.

At that moment, the outcome (the winning number) ceases to be random and becomes causal: there is, in fact, a direct cause-effect relationship between the forces applied to the ball and the rotor and the resulting number.

Of course, there are countless variables (rotational forces of the wheel, humidity, temperature, dirt, the condition of the croupier’s hands, microscopic imperfections in the wheel and the ball, etc.) that make it impossible to accurately predict a specific number, even in a controlled environment. The presence of the diamonds (deflectors) and the “impact” effect between the rotor and the ball further complicates the prediction (the diamonds could, however, simplify some physical prediction techniques). Operators of this strategy typically target a sector of the wheel (usually no less than one-third of it). To execute instrumental prediction, various techniques are used along with tools such as timers, cameras, or a range of scanners to calculate the speed of the ball and the rotor. A sophisticated algorithm could, based on this data, predict the section where the ball will land with a reasonable margin of success, allowing one to win at roulette.

Instrumental prediction is an indisputable reality: Thorp, the father (not the founder) of modern blackjack, with the help of world-class computer scientist Shannon, managed to demonstrate its feasibility.

Please refer to the dedicated page for more information.

The path of exploiting faulty (biased) roulette wheels to win arises from the following maxim: "Nothing made by man is perfect." According to this theory, repeated use of the wheel can lead to imperfections that favor certain numbers.

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The aforementioned methods are not the only ones available in a speculator’s arsenal. Many swear by the effectiveness of visual ballistic physical prediction.

This method is highly controversial, and many reputable scholars consider it unfeasible. In my opinion, it is possible, but "optimal conditions" (increasingly rare in modern casinos) must be met, and the operator must be, if not a prodigy, at least highly "attentive."

Over the past century in Europe, particularly in Italy and France, thousands of techniques have been developed to win at roulette and thus secure profits for the player. Scholars like Sadia, Marigny, and D'Alost, to name a few, have claimed to have beaten roulette. Most of the techniques developed by these scholars are based on one or both of the following strategies:

1. Shot selection
2. Financial maneuvering

Shot selection claims, through various techniques (such as delays, frequencies, compensations, pattern closures, harmonic searches, cyclometry, numerology, etc.), to identify situations where a certain outcome has a higher probability than what is predicted by pure chance, or at the very least, where losses are minimized. The classic saying "every spin is independent" refutes these techniques.

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The financial maneuvering technique aims to win by adjusting the bet (increasing or decreasing it) based on various factors (bankroll, losses, etc.) to achieve profit. However, due to the inherent symmetry and negative expected value (EV), this approach is ultimately ineffective.

Please refer to the dedicated page for more information.