What is Paroli System?

A lot of strategic betting goes into online casino gaming, which further brings relevance to the operators as well as players. Various systems are prevalent that work towards predicting the outcomes and assist gamblers earn returns on their stakes, and one such example is the Paroli system.

It is determined by its distinct assumptions, probabilities, and procedures. One of the important elements of this system is the concept of progression, where players increase their stakes to amplify the value of their potential wins.

While this casino strategy does not guarantee success every time, it does enhance the probability of winning.

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What is the Paroli System?

The Paroli system is a betting model based on positive progression. Bettors prefer it as it targets small stakes while consistently improving the winning probability. Thus, the risk of losing is low. The system dictates that if you win a bet, you should double the stakes to boost the earnings thanks to the marginal advantage of each initial bet placed.

Understanding the Paroli system is not rocket science. As stated previously, it does not necessarily guarantee a win but significantly improves the chances of winning as you increase the stakes after each victory.

You will see experienced punters use this strategy in games like blackjack and roulette hoping they gradually receive higher payouts.

Origin of the Paroli System

The origin of the Paroli system is often associated with Blaise Pascal, the French mathematician credited with the invention of the roulette wheel to determine the winners at the roulette table.

Parts of the Paroli system can also be seen in the works of Victor Bethel, whose time was before Pascal. Some historians of mathematics even suggest that this system has existed for over four centuries, with Pascal merely refining it.

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How to Use the Paroli System in Online Casinos

Human history was also witness to online casinos testing the Paroli system first, roulette being the predominant casino game choice. Other table games, too, saw a similar effect, with stake progression being the focal point.

Below are a couple of examples of how the Paroli system influences betting in casinos –


Say, you start the first round with the base bet of INR 100 and win, in the second round, you will double the stake. So, now the bet will be INR 200. If you win again, you will double the stake once more, with your stake in the next round being INR 400.

Upon yet another victory, you have the choice to continue the progression or revert to your initial bet. Often, the Paroli system recommends returning to the original bet after three consecutive wins. If you lose at any point, you return to the original bet of INR 100.


In roulette, too, you start with a small base bet while selecting the possible outcome. If you bet INR 100 on red and the bet wins, you place an INR 200 bet in the second round on red.

In case the bet wins again, you stake INR 400 on red in the next round. If this bet wins, too, you have the choice to bet INR 800 on red or revert to INR 100. If your bet loses at any point, you revert to your original bet

Advantages and Disadvantages of the Paroli System

Like every other system, the Paroli system has its pros and cons, learning about which can help you to make the most out of your gaming opportunities.

Below, we have listed some of the key advantages, followed by the cons.

Advantages of the Paroli System

  • Positive boost: The Paroli system is designed to help players capitalize on winning streaks. This, further, can be psychologically rewarding, boosting the confidence of players
  • Increased profits: When you are on a winning streak, following the system can lead to significant profits as you keep doubling your bet after each win
  • Supervised risks: The Paroli system is effective only if you start with a small initial bet and increase it after a win. If you suffer a loss at any time, you can control the risk by reverting to the base stake amount
  • Easy to understand: The Paroli system can be implemented easily. You are not required to follow complex calculations or possess deep knowledge of probabilities. As a result, it becomes accessible to beginners as well

Disadvantages of the Paroli System

  • Short-term focus: With the Paroli system, the focus is always on short-term gains. It is not sustainable in the long run, as house edge tends to play a vital role
  • Success not guaranteed: The Paroli system does not guarantee success. What it does is increase the potential for higher payouts during winning streaks
  • Extended losing streaks a possibility: While you can control your bet risks, losing streaks are a possibility, resulting in huge cumulative losses over time
  • Excess pressure: The need to double the stake after each win can add pressure on players. If you are not focused, you might find it difficult to stick to the process

Variations of the Paroli System

With time, a few variants of the Paroli system have emerged. They enable you to try a different approach to your gameplay, thus aiding in entertainment instead of keeping the experience bland.

Some of the popular variations are described below –

  • Classic Paroli: This is the most popular form of the Paroli system where players double their bets after each win. You can use it on games such as roulette, baccarat, and blackjack
  • Reverse Paroli: In this variation, you increase your stake after a loss as opposed to a win. It helps in recovering losses quickly by betting double the stake after losing
  • Double and Triple Paroli: This variation exhibits an aggressive approach, as you double your bet twice or thrice after a win. It paves the way for higher potential payouts but comes with a risk of losing accumulated profit with an additional bet
  • Modified Paroli: In this system, you adjust your bet amount after a win instead of doubling it. So, rather than doubling the bet in the next round, you can adjust it to 1.5 times the original stake. It allows for a more controlled growth of the bet size


The Paroli system can be a great addition to your casino gaming campaign if you learn its basics and apply them. The system is quite straightforward and is based on positive progression where you raise stakes after each win.

It is widely used in online games like roulette and blackjack for securing short-term gains. Depending on the game played, you can also use one of its variations to gain an advantage over other players. It is also noteworthy that the Paroli system comes with a house edge and does not guarantee wins every time.

Regardless, its adaptation can help you to adjust your risk tolerance level, making it a versatile tool in the world of online gaming.

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