Online Roulette Strategy

Gonzalo García Pelayo Secret Roulette Strategy

Throughout history, countless people have claimed to know the strategies and secrets for beating the classic roulette wheel. While it’s not possible to verify all of them, there are a few roulette systems that have proven successful for roulette players over the years. One of these is the Gonzalo Garcia Pelayo roulette strategy. This system allegedly reduces the house edge by recording the results and analyzing them through a computer. 

Almost every roulette pro, mathematician, or data whizz will tell you about the arbitrary nature of the roulette wheel. This means there is no way for a player to gain an advantage, even with roulette strategies. However, Pelayo believed that roulette wheels aren’t as random as people think. He believed that with a few calculations, certain numbers on the wheel could be predicted. 

Despite the lack of evidence to back up his statement, the proof in the pudding came when Pelayo won over 600,000 euros at a Madrid casino in a single day. His mammoth win resulted in the casino accusing him of cheating and filing a court case shortly afterward. But to Pelayo’s delight, the case was unsuccessful. 

This wasn’t the only occasion the former record producer turned roulette master made a fortune with his strategy. But before we delve into his success and failures, let’s first run through Pelayo’s backstory and how he came to conceive his theory.   

Birth of the Pelayo Roulette System

Born in Madrid, 1947, Gonzalo Garcia Pelayo’s career path consisted of producing records, presenting, broadcasting for radios, and directing TV commercials and short films. Aside from becoming a highly successful entrepreneur at a young age, he was also an extremely talented mathematician. He also had weak gambling skills. His initial failings with roulette prompted him to study his losses further. One day it occurred to him that if the algorithms of the roulette wheel are not 100% random, it should, in theory, be possible to exploit the game in some way.

Roulette Strategy

Pelayo also theorized that the results in roulette are highly reliant on the dynamics of the roulette wheel in itself. His ideas and research led him to believe that it was physically impossible for a wheel to be 100% perfect. He also thought that there must be some degree of bias towards certain numbers on the wheel. Gonzalo just had to recognize where these points were to gain an edge.

So, Gonzalo began working on a roulette system capable of overturning the bias towards the house and making it favorable to the player. To prove his thesis that the roulette wheel favors specific numbers, he needed to establish the following:

1) Masses of different data from a selection of real roulette wheels.

2) A means of analyzing data for locating any biases in the spins.

The first point didn’t require a huge amount of time or effort and was pretty easy to solve. Gonzalo managed to gather tonnes of data from different roulette wheels by sending his kids to casinos across Madrid. It’s said they spent hours’ clocking spins’ on as many wheels as they could find. Within a few months, Pelayo had all the data he needed to form his strategy. 

Using a computer language program developed in QBasic, Gonzalo analyzed the data from lots of different roulette wheels. Next, he assigned each number on each wheel with a value. The idea was that the more times a certain number appeared, he would assign it a higher value. What mathematicians and IT specialists would probably call this system today is ‘frequency distribution analysis.’ 

In the end, what Gonzalo ended up creating was a unique profile of each roulette wheel. His strategy involves a list that would purportedly show the numbers most likely to occur. At this point, most people would have dismissed Gonzalo’s hypothesis as nothing more than an oversimplified roulette strategy based on dealer tracking and bias wheels. 

However, Gonzalo still managed to win an enormous amount of money using these exact methods. He stated that his analysis and secret system turned the tables in a game that normally has a 5% house edge into a game that gives a whopping 15% player advantage. Although winning on every spin isn’t always guaranteed, it’s something that may actually work in the long term for serious players.   

Hitting the Vegas Tables

Gonzalo eventually exhausted the casinos in Madrid, and most of them banned him and his family from going back. As a result, they turned their sites to the casinos around Europe and eventually the world’s roulette mecca, Las Vegas. Here, Pelayo struggled to make his system fit when he came face to face with the American roulette wheel for the first time. He was accustomed to classic and French roulette wheels. 

The only difference in the layout is the addition of the double zero. But this gives the casino almost twice the advantage. Gonzalo now needed to adjust his system to a game with a 5.26% house edge. This meant digging for even more biases that would continue to make his system feasible.

The Failure of the Gonzalo Roulette Strategy 

roulette system failure

This process brought along with it a vast amount of stress and risk. Gonzalo would later find this out the hard way. One evening he picked out two heavily biased numbers: 8 black and 31 black. To secure a big win quickly, he started the game off by placing large wagers on these numbers. During this time, he worked out that his system stacked the odds against the ball landing on 19 red, directly on the opposite side of the wheel. 

To his dismay, this is precisely where the ball hit and again on the next spin. He concluded it to be completely improbable that the ball would land on this number a third time. Therefore, he proceeded to place another hefty wager. Minutes later, the ball landed on red 19. After a few more minutes, Gonzalo collapsed on the casino floor. He was immediately rushed to A&E with a suspected heart attack.  

Luckily, it was a false alarm, and Pelayo fully recovered and left the hospital a day later. What did become fragile after this incident was the confidence in his theory. He even tried to return to the same casino so he could continue what he started. But soon he realized he couldn’t face up to losing again or have his beliefs shattered further. 

With all his confidence out the window, Gonzalo soon deduced that it is impossible to play any advantage system. Furthermore, that deviations and apprehension do nothing but skew the very edge that he meant to exploit. Spain’s own roulette conquistador hung up the gloves and returned to Spain with his family shortly after this event. He only returns to Vegas now to take part in the World Series of Poker.  

Why the Pelayo Roulette System Isn’t Practical Today

Pelayo may have had success with his system initially, but as you’ve now learned, it doesn’t work all the time. This is particularly true if you’re playing the American variant of roulette or an online version. When you play roulette online, it is impossible to identify any biases in the wheel. This is because each spin is determined by random number generators. 

Even though this is the case for real roulette wheels in land-based venues, people have still been able to cheat and manipulate the game in the past. One example of this is in the case of a British man named Thomas Mass. After installing a mini-computer in his shoe, he detected the ball’s deacceleration after it hit the wheel and predict where it would land. He even published a best-seller on his approach to playing roulette along with several other novels dedicated to using systems.   

Another genius case of tech versus the roulette wheel occurred when a Hungarian and a Serbian man entered the Ritz casino in 2004. The pair pulled off a 1.3 million pound heist after installing a laser scanner in a mobile phone. They hooked up this device to a computer that would then feed them back to the sector of the wheel where the ball would most likely hit. Once the casino discovered what the two men were up to, they arrested them. Police kept them on bail for almost 9 months. However, police later released them after the authorities couldn’t find any evidence of tampering with casino equipment. They also kept every last penny of their winnings.  


Gonzales Pelayos certainly earned his place in the gambling history books. Never before has a man and his family gone to such an extent to beat the house edge in casinos. He came up with a viable theory for beating roulette. And he, along with his family members, executed the idea perfectly. In total, the Pelayos made a $1.5 million profit (minus expenses) in the time they were deploying the Pelayo system. That doesn’t mean that Casino Gran Madrid didn’t put up a fight when it came to preventing the family from profiting.

According to reports, the operators continuously harassed the family and called around all of the other casinos in Europe to have them banned. Multiple casinos have also made changes to their layout of the roulette tables since then. These include making the dealers spin the balls faster, moving the wheels around, and outright banning players who show even the most minuscule sign of using an advantage system. 

So, next time you go to play roulette at a casino, keep Mr. Pelayo and his family in mind — just don’t put all your money on red 19!

Enjoy playing the best casino games!
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