Is roulette rigged?
The short answer: the house does not need to cheat, because the green pockets already give it an edge on every single bet.
Why the house does not need to cheat
Roulette is built so the casino wins over time without any tricks. The reason is the green zero pocket, or pockets.
A straight bet pays 35 to 1, but the European wheel has 37 pockets. That gap between the payout and the true odds is the house edge.
- European wheel (one zero): house edge of 2.70% on every bet.
- American wheel (two zeros): house edge of 5.26% on almost every bet (the five-number top line 0-00-1-2-3 is worse, at 7.89%).
On a European wheel, the average loss is $2.70 for every hundred dollars you bet. On an American wheel, it is $5.26 on most bets.
Short sessions can go up or down. Over many bets, your loss as a share of the total bet tends to get closer to the house edge.
A fair wheel is already a winning business for the house. Cheating would add risk and almost nothing else.
You can see how the zeros work on our zero pocket page and the full payout list.
Can a roulette dealer control the ball?
Many players ask if dealers can hit numbers on purpose. There is no reliable way to do it.
Here is what happens on every spin:
- The dealer spins the wheel one way and the ball the other way.
- The ball and the wheel move at different speeds that change every spin.
- The ball hits metal bumpers called deflectors on the way down.
- It then bounces off the dividers between pockets before it stops.
Tiny changes in speed or angle send the ball to a very different pocket. That makes the result chaotic and very hard to predict, even for the dealer.
The idea of a "dealer signature" – a dealer who always lands in the same area – is a popular story. The bounces make it unreliable in practice.
Learn how the pockets are arranged on our wheel layout page.
Do roulette tables have magnets?
A hidden magnet or other cheating device is a common worry. For a casino, such a device would be a huge risk with very little to gain.
- The house edge already works in the casino's favor.
- A device could be found by staff, inspectors or players.
- Getting caught could cost the casino its whole business.
Regulated casinos usually test their wheels. They check that the wheel is level, balanced and not worn in a way that favors some numbers.
If a wheel is fair, every pocket has the same chance on every spin. That is all the house needs.
Is electronic and online roulette rigged?
Most electronic and online roulette games use a random number generator (RNG). It is a program that picks each result by chance.
- In licensed markets, these generators are usually tested by outside labs.
- The exception: some electronic tables use a real wheel and ball that spin automatically, so the ball picks the result, not an RNG.
- The payouts and house edge stay the same as on a live table.
So the edge does not come from a trick in the software. It comes from the same green pockets: 2.70% on a European wheel and 5.26% on almost every bet on an American wheel.
Long streaks of red or black feel suspicious, but they happen on fair wheels too. Each spin does not remember the last one.
Read more about streaks on our gambler's fallacy page.
How our simulator stays random
SimSino Hub is a free practice tool with no real money. We want you to see how a fair wheel really behaves.
- Each result comes from a cryptographic random generator, the strong kind used for security.
- The result is drawn before the animation starts. The spinning ball only shows a number that was already picked.
- Every pocket has the same chance on every spin.
Try a few hundred spins on the European wheel or the American wheel. You will see streaks, cold numbers and hot numbers – all from pure chance.
Want to test a betting system? Run it in the system tester and watch the house edge tend to show up over many sessions.
For the bigger picture, see can you beat roulette.
Questions
Can roulette dealers hit numbers on purpose?
There is no reliable way to do it. The ball and wheel change speed every spin, and the deflectors and pocket dividers make the bounces chaotic.
Is roulette random?
On a fair wheel, yes – every pocket has the same chance on every spin. The house still wins over time because of the green pockets, with an edge of 2.70% on a European wheel and 5.26% on almost every bet on an American wheel.
Do roulette tables have magnets?
A hidden device would be a huge risk for a casino with very little to gain, since the house edge already favors it. Regulated casinos usually test their wheels for balance and fairness.
Is electronic roulette rigged?
Most electronic and online roulette games use random number generators, which are usually tested in licensed markets; some electronic tables use a real automated wheel instead. Either way, the house edge comes from the zero pockets, not from tricks in the software.