Isaac Newton had no theory of roulette. He died in 1727, and the modern single-zero wheel did not appear until the following century. What he left behind was something more useful: a description of how moving objects behave, accurate enough that people would eventually point it at a casino.

Two different ways to beat a wheel

It is worth separating them, because they are often confused and only one involves Newton.

Bias play needs no physics at all. It relies on a wheel being imperfect — a worn pocket, a slightly off-level base — so that some numbers come up more often than they should. You find it by recording thousands of spins and looking for numbers that appear too often to be chance.

The best-known case is Joseph Jagger, an English engineer who in the 1870s had wheels at Monte Carlo recorded and found one with a genuine bias. He won a large sum before the casino worked out what was happening and began moving wheels between tables.

Bias play is statistics, not mechanics. It is also largely dead: modern wheels are precision-made and monitored for exactly this.

Trajectory prediction is the Newtonian one. Rather than looking for a faulty wheel, it treats a perfectly good wheel as a physics problem: measure the ball’s speed and the rotor’s speed, model the deceleration, and predict roughly where the ball will come off the track.

What it looks like in practice

You do not need to name the pocket. You need to beat 37 to 1 — that is all. If measurement narrows the likely landing zone to a handful of adjacent numbers, and you bet all of them, the payout structure does the rest.

The physics is real but the tolerances are unforgiving. The ball’s collision with the deflectors is chaotic in the technical sense: arbitrarily small differences going in produce completely different results coming out. So prediction can never say where, only roughly which region, more often than chance would. That turns out to be enough, and it is also why the method needs a machine rather than a good eye.

The Ritz case

In March 2004, three people were arrested after winning around £1.3 million over two nights at the Ritz casino in London. It was reported that they had used a laser scanner and a phone-based computer to time the wheel and predict the region where the ball would land.

The outcome is the interesting part. After investigation, the Crown Prosecution Service concluded the following year that no offence had been committed under the law as it then stood, and they kept the money. The equipment had not touched the wheel; nothing had been interfered with. They had simply measured a physical object very well.

UK gambling law was subsequently overhauled, and using a device to predict outcomes is now firmly prohibited. In Nevada it had already been a felony for decades.

Why the window closed

Casinos adapted, and the countermeasures are unglamorous and effective.

  • Early closure of betting. Prediction needs the ball slow enough to model. Calling no more bets while it is still fast removes the measurement window entirely.
  • Wheel maintenance and rotation. Regular levelling, servicing and moving wheels between tables kills both tilt and long-run bias studies.
  • Monitoring. Casinos run their own outcome statistics, and a wheel drifting from expectation gets pulled.

And then the wheel disappeared

The decisive change was not a countermeasure. It was that most roulette stopped being physical.

In an online game — including ours — there is no ball, no rotor, no friction and no track. A random number generator produces the result directly. Newton’s laws describe the motion of objects, and there is no object. Trajectory prediction is not difficult against an RNG; it is undefined.

So: did Newton beat roulette?

His mechanics did, for a while, in the hands of people willing to build hardware and take a serious legal risk, against physical wheels that no longer exist in the form they exploited. That is the truthful answer, and it is a far more interesting one than a system.

What none of it ever was is a way for an ordinary player to win. If you enjoy roulette, enjoy it for what it is. Our version runs on play chips with no cash-out, which at least makes the maths harmless.

The physics behind it, in more detail · Why systems fail against an RNG