Do All Roulette Wheels Have the Same Numbering System?

[Chubbs]

Besides having one or two zeros. Are the other 36 numbers in a certain order? I’ve played on several tables and the wheel always looked the same. Is there a reason of the placement of the numbers?

[Horseflesh]

Site.

Number Placement

To the casual observer it would appear that the numbers on the wheel are not organized and seem to be distributed randomly. The only obvious patterns are that red and black numbers alternate and that usually two odd numbers alternate with two even numbers. However the distribution of numbers was carefully arranged so that the sum of the numbers for any given section of the wheel would be roughly equal to any other section of equal size. Most numbers are part of a pair, with one number between them. These pairs add to either 37 or 39.

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