Can you really win at roulette every time?

Let’s be blunt. No. It is impossible to win at roulette every time. If a miracle method existed, casinos would have gone bankrupt centuries ago.   

Roulette is a game that has fascinated people for centuries because it seems simple. The reality is that it is based on an unrelenting mathematical mechanism where the house always has the upper hand. To stand any chance of walking away with a win, you must abandon your beliefs about luck and understand the numbers that govern roulette. With our expert guide, you’ll be equipped and ready to beat roulette almost every time.   

The house edge: the zero that changes everything  

Roulette is not a game of pure chance between you and the wheel. It is a game designed with a built-in profit margin. The key lies in the number zero. On a European roulette wheel, there are 37 numbers (from 1 to 36 plus 0). However, when you win on a single number, the casino only pays out 35 times your initial stake. 

This difference in calculation creates what is known as the house edge. Mathematically, over the long term, the casino consistently retains a fraction of every euro wagered. In Belgium, the legal framework imposes strict payout rates, but this does not eliminate this structural advantage.  

Type of Roulette	Number of Zeros	House Edge	RTP (Return to Player)
European / French	1 (0)	2.70%	97.30%
American	2 (0 & 00)	5.26%	94.74%

To be perfectly clear, in European roulette, the house edge is around 2.7%, which means that for every €100 wagered, the casino will retain an average of €2.70 in the long run. In American roulette, the house edge is 5.26%; the casino wins around €5.26 for every €100 wagered.   

This lower house edge in European roulette is also why it is often recommended to favour this version of the game.  

The downfall of the Martingale and classic strategies  

The Martingale is the most famous strategy. It seems foolproof on paper: you double your stake after every loss. On red or black, a win is bound to come eventually to cover your previous losses and yield a €1 profit. The reality is much harsher. Two major obstacles doom this method.  

The exponential rise in stakes 

If you hit a losing streak, your bets go up in smoke. If you start with €5, after just seven consecutive losses, you’ll need to bet €640 just to recoup your initial stake. The psychological pressure becomes unbearable.  

The table limit  

This is the casinos’ best-kept secret. Every table has a maximum permitted stake. If you reach this limit before winning, you can no longer double your stake. Your loss is then final and massive.  

A small win is still a win  

If you win, you get your total stake back, plus just 1x your initial stake. If we take the €5 example again and the 8th game is the winner, you’ll get €1,280 back – that seems like a huge amount. But if we break down this amount (€5 + €10 + €20 + €40 + €80 + €160 + €320 + €640 = €1,275 bet), we realise that the actual profit is only €5. It’s not a huge win, but it’s still a profit and you haven’t lost anything.  

Labouchère and Paroli: the illusion of control  

Other systems attempt to circumvent the Martingale’s flaws by altering the sequence of bets. The Labouchère method requires you to cross off numbers on a pre-set list after each win, and add to it after a loss. This complex system gives the illusion of perfect bankroll management. It is not. A losing streak extends the sequence indefinitely. Your bankroll is depleted just as rapidly as with a traditional approach. 

The Paroli system does exactly the opposite. You only double your stake after a win. You limit sudden losses. The problem remains purely mathematical. The house edge applies to every new spin, eating away at your accumulated winnings even before you decide to cash out your balance.  

Other methods such as Fibonacci or d’Alembert are merely variations on risk management. They smooth out losses but never alter the probabilities of where the ball will land.  

Mastering the variance between inside and outside bets  

Understanding the house edge and its ever-present impact on casino games is not enough. You must grasp the concept of variance. An outside bet on a colour (red or black) offers a 48.6% chance of winning on a European table. Volatility is low. You win often. However, the payout is limited to 1 to 1.  

In contrast, an inside bet on a single number has a probability of winning of just 2.7%. Volatility skyrockets. The attractive payout of 35 to 1 drives many players to chase this massive win. This choice usually depletes a bankroll long before the ball lands on the targeted pocket. So always remain cautious. 

RNG and Live Casino: Debunking the myth of the biased wheel  

In land-based casinos, some professional gamblers hunt for mechanical flaws. They look for a slightly unbalanced wheel or a worn pocket to predict where the ball will land. This is exactly the technique used by Richard Jarecki, which enabled him to win several million euros. You can stop dreaming right now; this ‘biased wheel’ technique is strictly impossible online.  

Software roulette games operate using a Random Number Generator (RNG). An algorithm determines the outcome cryptographically, accurate to the millisecond. As for Live Casino, providers such as Evolution or Pragmatic Play stream real croupiers from ultra-secure studios. Their tables undergo daily laser calibration. There are no mechanical faults. Every spin is fair.  

How to play roulette smartly?  

Since it is mathematically impossible to beat the wheel, expert players focus on what they can control: their behaviour. The key to a successful session lies not in the choice of numbers, but in strict management of your bankroll. 

Experienced players never bet random amounts based on emotion. They divide their overall budget into strict betting units. A mathematical rule governs risk management. Never bet more than 1% to 5% of your total bankroll on a single spin. If you deposit €200 into your player account, your maximum bet per spin should be capped at €10. You weather losing streaks without flinching. You protect your funds over the long term and play for longer.  

Don’t forget to set limits before you even sit down. Decide on an amount you are willing to lose without regret. Conversely, set a reasonable winning target. Once you have reached the amount you were prepared to lose, or if you double your starting capital: leave the table. Roulette is a marathon. The longer you stay, the more the house edge eats away at your balance.  

Legality and security in the Belgian market  

In Belgium, playing at a casino licensed by the Gaming Commission is your only real protection. The random number generators (RNGs) at legal casinos such as PepperMill Casino, Napoleon or Circus are audited. You are guaranteed that the results are not rigged. 

Avoid dodgy websites that sell prediction software. These tools are scams designed to empty your bank account. Roulette is, and always will be, a form of entertainment. Play for fun, in moderation, and accept that the casino always has that slight 2.70% edge – which is what makes the challenge so exciting.  

To help you choose, we’ve listed all the 100% legal online casinos in Belgium. Your next favourite is bound to be on this list.