Roulette

Why the wheel you choose is the only decision

One extra pocket, two different games

The European wheel has 37 pockets: 1 through 36 plus a single zero. The American wheel has 38, adding a double zero. Every payout on the table is identical between the two — a straight-up number pays 35 to 1 on both.

That is the whole point. The payouts are calculated as if the zeros did not exist. With 37 pockets you are paid 35 to 1 on a 1-in-37 chance; with 38 you are paid 35 to 1 on a 1-in-38 chance. The extra pocket is where the house edge comes from, and adding a second one roughly doubles it.

Bets divide into inside wagers on specific numbers and small groups, and outside wagers on large categories such as red, black, odd, even, dozens, and columns. Zero and double zero belong to none of the outside categories, which is why those bets lose when a zero lands.

Choose the wheel; everything after that is identical

Every bet on a European wheel carries the same house edge. A straight-up number, a corner, red, and a dozen are all mathematically equivalent in expected return — they differ only in variance. That is unusual among casino games and it means there is no clever bet to find on the layout.

The one genuinely consequential decision is which wheel to play. Choosing European over American cuts the edge on every single bet roughly in half, and it is a larger improvement than any betting system has ever produced. If both are available, there is no argument for the American wheel.

Betting systems deserve a direct answer. Doubling after a loss, waiting for a colour to repeat, and covering most of the layout all leave expected return unchanged, because each spin is independent and every bet already carries the same edge. They alter the shape of your results — more small wins and rarer large losses, or the reverse — but never the average.

Payouts, which are the same on both wheels

Payouts are quoted to one, so a straight-up number returns 36 times your stake in total. Every entry below is identical whether you are playing 37 pockets or 38 — which is precisely why the wheel choice matters so much.

Notice that each payout is calculated as though the wheel held only 36 numbers. A corner covers four numbers and pays 8 to 1, which would be exactly fair on a 36-pocket wheel; a dozen covers twelve and pays 2 to 1 on the same basis. The zeros are what turn every one of these fair-looking prices into a small loss, and the second zero on the American wheel simply does it twice as fast.

Common mistakes

Roulette generates more false systems than any other game, and the reason is that its results look patterned when they are not.

• Playing the American wheel by default. The extra pocket roughly doubles the house edge while paying exactly the same, and choosing the European wheel is the single biggest improvement available.
• Doubling after losses. Each spin is independent, so the sequence of past results tells you nothing — and the strategy simply concentrates the same expected loss into rarer, larger ones.
• Reading the scoreboard. A run of red does not make black more likely; the wheel has no memory of the previous spin.
• Believing outside bets are safer value. Red and a straight-up number carry the identical house edge — they differ in variance, not in expected return.

What is different about this version

Both wheels use their real pocket sequences rather than numbers in order, so the physical neighbours on the wheel are the actual neighbours — which matters if you ever compare this layout against a live table. Zero and double zero are correctly excluded from every outside category.

Because both variants are available on the same table with identical payouts, you can see the effect of the extra pocket directly rather than taking it on trust. That comparison is the most useful thing this simulation can show you, and it costs nothing to run.

Written by the Silverweb Games team from this game’s own implementation. Last reviewed July 31, 2026.