How Many Numbers are there on a Roulette Wheel?

October 21, 2020
How Many Numbers are there on a Roulette Wheel

Have you wondered how many numbers are there on a Roulette wheel? Perhaps, yes because it’s your new muse or you’ve been thinking about why it keeps players coming back after repeated losses. 

The Roulette wheel has been studied by several experts and they all agree its a gentlemen’s battlefield. The rounds are fierce with an unpredictable outcome at every turn, keeping players anticipated than ever. Winners get decided by small variations in the wheel movement. 

A little left or right to the anticipated slot is enough to spoil astronomical wins. Playing Roulette is sometimes metaphysical and like the wheel of life, it is raw and unscripted. 

In a game of Roulette wheel, there are subtler things that aren’t often discussed but have an incredible effect on the winning odds. So join me till the end to get answers to all popular questions on Roulette Wheel.

How Many Numbers are there on a Roulette Wheel?

On a roulette wheel, though the numbers are arranged from 0 to 36, the order might be different. The  range starts from 1 to 10, followed by 19 to 28. While the odd numbers are in red, even numbers are in black. 

On the other hand, another range is displayed from 11 to 18, followed by 29 to 36 where the odd numbers are in black and even numbers are in red. 

The green pocket is numbered zero (0). (Source: Wikipedia)

To an average person, the Roulette wheel may seem like clones from Star Wars. So, you’ll need to be trained to tell one apart from the other.

The game of roulette is mainly of two types and it all starts with the player deciding whether to play either:

  • The American roulette, or 
  • The European Roulette

The former has two additional zeros on the Roulette cylinder, obviously increasing the house edge. This may leave players disadvantaged at the outset but some still prefer the American roulette because they have no choice. 

This is especially true if you’re visiting Casinos in the States. In a bid to bring more prospective players to the table, Germans introduced the single zero roulette. If you’re new to Roulettes, be advised there are differences in table rules and it can vary between casinos.

Numbers on a Roulette Wheel

Decoding the American Roulette

When you play the double zero roulette, you’ll notice there are 38 slots from 0 to 36 with double zeros adjoining each slot. Out of 38 slots, 18 are red while the remaining are black. 

The double zero slots are all green. The zero slots are positioned opposite to the cylinder without identical colours in adjacent positions.

The counterclock order of the American Roulette is as follows: 

0, 2, 14, 35, 23, 4, 16, 33, 21, 6, 18, 31, 19, 8, 12, 29, 25, 10, 27, 00, 1, 13, 36, 24, 3, 15, 34, 22, 5, 17, 32, 20, 7, 11, 30, 26, 9, and 28.

Decoding the European Roulette

The European version has just a single zero, making it best suited for players who prefer a counterbalanced variance effect. In a nutshell, it means lower a house edge. This gives players a greater chance of winning or at least limiting losing streaks. 

In the European Roulette, the 36 slots are split by zeros that are all green. Out of 38 slots, 18 are black and remaining, red.

In the clockwise progression, the European Roulette slots are as follows: 

26, 3, 35, 12, 28, 7, 29, 18, 22, 9, 31, 14, 20, 1, 33, 16, 24, 5, 10, 23, 8, 30, 11, 36, 13, 27, 6, 34, 17, 25, 2, 21, 4, 19, 15, and 32.

Wagers in the European Roulette

Remember, the European Roulette has distinctive bets. When the game begins, the player is told to place the bet by exchanging chips. The player is asked to repeat the betting order to avoid miscommunication. The wagers are as follows:

1. Zero Play

  • Slot Range: 12, 35, 3, 26, 0, 32, 15
  • Wager: 0/3 split, 12-15 split, 26 straight up, and 32-35 split with 4 chips

2. Voisins du Zero or Neighbours of Zero

  • Slot Range: 22, 18, 29, 7, 28, 12, 35, 3, 26, 0, 32, 15, 19, 4, 21, 2, 25
  • Wager: 9 chips whereas 2 for 0-2-3, 1 each for 4-7, 12-15, 18-21, 19-22, 32-352, and lastly the 25-26-28-29 corner with 1

3. Orphelins or Orphans

  • Slot Range: 17, 34, 6, 1, 20, 14, 31, 9
  • Wager: 5 chips whereas 1 for 1, and 1 each for splits of 6-9, 14-17, 17-20, 31-34

4. Tiers

  • Slot Range: 33, 16, 24, 5, 10, 23, 8, 30, 11, 36, 13, 27
  • Wager: 6 chips whereas 1 for each split of 5-8, 10-11, 13-16, 23-24, 27-30, 33-36

5. Neighbours

  • Slot Range: Player bets on 5 sequential slots by betting the middle number and its adjoining number
  • Wager: 5 chips whereas 1 for each number

Numerical in a Roulette Wheel

roulette wheel numbersThe numerical order of slots in the wheel can vary starkly between American and European Roulettes and they are often different from the natural arithmetic sequence.  

Therefore, Roulette is considered to have a superior game theory because it’s well balanced. The placement of slot numbers are based on four fundamentals:

1. Unpredictable Game Experience

In the beginning, the Roulette wheel can be dizzying to understand especially the relation between sectors and numerical order. The absurd assortment is aimed to confuse players and prevent them from creating a mental image of the numbering sequence. 

Most skilled players already know the numerical sequence of the wheel and will try to bet on potential sectors. Your goals must be to get better at grasping the numerical layout immediately before betting begins.

2. Alternating Colour for Numerical

Whether it’s American or European Roulette, by design the slot colours alternate. It’s a non-variable condition in the game. Additionally, colours must be well balanced on the table, but the former isn’t stringently practised.  

3. Alternating High and Low

European Roulette is considered well-balanced because the high and low ranges alternate throughout the circle with 5 adjacent to 10 being the only exception.

However, in the American Roulette, alternating colours are peppered in several sectors. Therefore, the perception that American Roulette is less balanced than the European wheel.

4. Proper Distribution of Odd and Even Numerical

The odd and even numbers are well-distributed to avoid pairs of odds or evens from being adjacent.

Skewed Aspects of European Roulette

When the European wheel is split into equal halves from zero, black lows and high reds land in the left sectors, while the right sectors will be made of high blacks and low reds.

Roulette Cylinder Manufacturers

If you had a walkthrough of online casinos, you’ll notice most casinos stick to European Roulette. However, in the United States, most brick and mortar casinos go with American Roulette and occasionally, you may come across the European wheel. 

Of late, the market demand for the Roulette wheel has shot up, giving rise to manufacturers who make professional-grade cylinders for popular casinos.

  • One particular name that stands out is the Cammegh, a Roulette wheel maker headquartered in Ashford. 
  • Another brand that’s well-known for making skilfully crafted Roulette wheel is John Huxley. In 2003, the Stoke-on-Trent-based manufacturer was acquired by Technical Casino Services (TCS). Today, it’s one of the iconic names behind some of the world-class Roulette Wheels. 
  • Lastly, it’s the Vegas-based company called Paul-Son, whose operations were acquired by the Gaming Partners.

A Roulette wheel isn’t as simple as it looks to the eye. For example, in the Huxley Starburst, a cleverly integrated computer in the wheelbase is constantly reading signals from sophisticated sensors to pick up data for wheel diagnostics. 

It’s an intelligent system capable of storing up to 6 years of table action to help casinos catch patterns from non-random results.

Manufacturing of the Roulette Wheel

A professional roulette wheel is a piece of precision equipment. A lot goes into the manufacturing one and ensuring its fairness. Here is the list of specifications that the wheel-maker must conform to:

  • Proper weight distribution must be maintained
  • The ball and the wheel must be a non-ferrous so it can’t be manipulated using magnetic devices
  • The wheel must be firmly secured to its axis without lateral movement and it must spin without resistance
  • All ball slots or pockets on the wheel track must be uniformly spaced and identical in dimensions
  • The ball must land without excessive bouncing and roll smoothly before resting in the pocket

When a Roulette wheel fails to meet the standard specifications, it’s likely tampered with by the Casino or the defect would’ve gone unnoticed, in which case a vigilant player could take advantage of pocket rewards.

The Roulette is made more unpredictable by the presence of diamond-shaped ball deflectors which sit above the ball pockets but below the ball track. 

Once the ball is released from the ball track, it changes direction and velocity after tripping deflectors. In a typical roulette wheel, there could be 8 or 16 ball deflectors.

If you take Gammech for example, they introduced the Random Rotor Speed (RSS). It’s a patented technology that is designed to make Roulette foolproof by spontaneously changing the rotor speed after the round begins. 

Gammech presented RSS as the latest security feature to deter players from exploiting roulette computers or pattern s signature metronomic dealers’ technique. 

The RSS is touted as a secure contactless technique but some players have misgivings about it because there’s a concern that casinos could tamper if the wheel speed could be altered mid-game.

A little digging on the matter has revealed that some casinos substitute their roulette components with parts sourced from other manufacturers. 

For instance, a few casinos using the Gammech RSS feature were found having their turrets swapped with the ones from John Huxley so it gets passed off as an authentic roulette wheel in the player’s eyes. 

It may not seem obvious but under the hood, it still runs the RSS technology, which is looked on with suspicion.

Varieties of Ball Pocket

Players who’ve gotten better at playing the Roulette and those who’ve profited by exploiting the unenlightened player agree it’s all in the Roulette wheel. 

It seems there is, after all, some truth to it. The theories are endless on how to increase the player advantage over the house, but there are quite a few worth considering.

As explained by Roulette wheel makers, it’s not without justification why there exist varieties in roulette wheels and slot designs. 

  • When a ball slot is shallow, the ball is prevented from immediately picking a spot and resting in it. A shallow recess scatters the ball widely. 
  • In some cases, the wheel surface could be a forged metal, into which recesses are made and separated by frets.
  • The fret design can vary from one roulette wheel to another. The fret height can be uniform across the entire circumference or gradually dip near the axis. In the case of the latter, the ball can slide over, allowing more room for scattering and less room for approximating where the ball would come to rest.

Most brick and mortar casinos prefer roulette wheels with uniform frets over sloping ones to keep the game thrilling. When the wheel slows down, the ball may seem it’s about to land where the player wants but jumps a spot or two by minor movement. This intense action is what brings more players to the pit.

The fret height is more than just means to slow down the ball because it allows hopping, which happens a lot with taller frets because rolling is restricted and causes the rotating mass to shed speed quickly. 

In most cases, it may seem to players that the ball is always landing where they didn’t want in the first place. In reality, taller frets stalls rolling and trap the ball within the pocket. However, most manufacturers are careful while designing the fret height so it prevents the ball from being tossed out.

Another design that’s frequently seen is the “curved fret.” In this design, the ball jumping is minimal and allows more rotations. Roulette wheels with curved fret almost always have the ball rolling out of the pocket where it initially lands.

In a TCS Huxley wheel, the ball is less likely to pick a spot and continue residing in it but neither will it bounce hard like the ones with taller fret.

A few less common roulette wheels have curved ball slots rather than frets. However, the effect is more or less the same. These variants are gradually finding a place in land-based casinos and might soon become a popular offering. The only major variation is that players are unlikely to see the bouncy action nor predict where the ball would land.

One of the popular wheels found in MGM & Venetian are made by Cammegh where pockets are scalloped then recessed. Roulette wheels with scalloped pockets eliminate bouncing. Instead, the ball scatters wildly till it finds a resting place.

For decades, there have been no imposed limitations on how far a manufacturer can go in altering the roulette wheel as long as the game fundamentals stay intact. 

The only condition is that the outcome must be fair to the house and players. Most manufacturers have gone beyond adding visual elements and tinkered with the wheel characteristics to keep players riveted. 

After all, Roulette is a game based on unpredictability, but aficionados won’t rest till a new trick is found to counteract the house edge.  

Roulette Deceleration and Fixes

Some say the Roulette was introduced in the 17th century, while others believe it was much more recently in 18th century France. 

For hundreds of years, it was shrouded in mystery as people explored ways to find winning patterns and some even going to an extent of discreetly exploiting it. No matter what, it’s safe to say Roulette is here to stay and will continue making legacy as new formats emerge along with new winning hacks. 

Recently, manufacturers have begun adding precision components to make Roulette wheels rarely in need of recalibration. Newer designs rarely malfunction or can self-correct the flaw. 

roulette wheel and its numbers

The penetration of technology has made online casinos a fantasy experience that’s free from all inconveniences. However, that’s not to say they are 100% hassle-free. Along with new technology comes newer challenges like roulette deceleration.

Like the name suggests the issue lies upon the ball deceleration while it rides over ball pockets till it picks a spot to temporarily rest. 

To fix this problem, Roulette manufacturers have tapped into innovative ways so that the wheel doesn’t slow down and such is their effort that dealers have begun to show their appreciation.

To a great extent, the Roulette deceleration seems to have been contained thanks to the technology enabling rotation to sustain.

Deceleration doesn’t seem to have a significant impact on online casinos because the game software is immune to deceleration but the same can’t be said in the case of brick and mortar casinos. 

The decelerating wheel has a greater impact on players because they are denied all options to exploit the system. So while players hate it, casinos have a reason to grin. Deceleration is a recognised issue that’s persistent in older roulette wheels, having been out of shape since ages.  

The Roulette Ball

Manufacturers often design roulette balls proportionally so that it slots well in the shallow pockets. The design is also based on the number of pockets. The wheel diameter preferred by reputed casinos is 27, 30, or 32 inches. 

The roulette ball that’s proportional to the diameter can be 18mm or 21mm. 

Many a time, to increase the level of unpredictability between rounds, dealers can alternate between small and big ball sizes. Often, the balls used in major casinos are made of high-grade Teflon or ivory.

Earlier, it was a common practice to stick to real ivory, but a lot has changed since then and now it’s usual for casinos to use ivorine. It can be tough for an untrained eye to say it apart from the real ivory because it features an identical appearance. 

Lately, other materials like Teflon, Ceramic, and Resins have been experimented upon with and was found to be a great substitute for traditional materials. 

How Many Numbers are there on a Roulette Wheel

The ball has characteristics like material, weight, and dimensions whereas by making minor modifications could have implications in its behaviour. A lighter ceramic ball rolls effortlessly and unpredictably than ivorine.

Casinos are expected to use non-ferrite balls that are unaffected by the magnetic field to deny players an unfair advantage during the game.

Hope you have now learnt how many numbers are there on a roulette wheel and probably, everything about it. 

Author Neha

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