Dominance: the system that backs a single six line.
A lesser-known system that, instead of a colour or broad coverage, backs the same six numbers throughout and follows a fixed 14-step progression. It does not look aggressive, but it suffers from long waits for a hit — and a long test over 25,000 spins finished in the red. Here you can take it apart step by step and test it on simulated spins.
Test Dominance on your own bankroll
Set the bankroll, the unit value, the length of the simulation and the run limit. The simulator shows how the bankroll develops, the longest wait for a hit, and how many times the whole progression ended in a full 39-unit loss.
Bankroll and spins
Variant and wheel
The bet goes on the six line 1–6; a win pays 5:1. Every run uses a fresh random sequence of spins.
Bankroll over time
Dominance hits less often than colour systems. Watch above all the long declining stretches between hits and the steps down after fully lost runs.
What happened in the simulation: Click "Run the simulation" and you will get a short, plain-language explanation of the result here.
The 14-step sequence and what it really costs you
Dominance does not double. The bets grow along a fixed list of units — slowly, but across a whole run the losses add up to 39 units.
How the bet grows across a run
The sequence is 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 5, 6, 7. At a $100 unit you risk $3,900 in a single run — and according to the original test such a full loss arrives in roughly every twelfth round.
Cumulative run loss
How many units are “sunk” while the six line keeps failing to land.
The covered numbers on the roulette layout
The numbers highlighted in gold are the chosen six line 1–6. Dominance can work with any other double street — the principle and the mathematics stay the same.
How often does a full loss of the whole progression arrive?
This calculator is not about a single spin. It is about the probability that the six line fails to land even once across a whole run — and what that will cost you.
Enter a unit and a run limit. The result shows the probability that the six line never lands across a whole run, how many units and how much money such a run costs, and how often you will meet one on average.
Is Dominance a good roulette system?
Excellent for understanding inside bets and probability, poor as a route to profit. Here is the whole picture, maths and long-run test results, in one place.
Dominance is a roulette strategy built on one chosen six-line bet — a group of six numbers lying side by side on the layout. The original test used a bet on the numbers 1–2–3–4–5–6 as its example. You are not backing a colour or the large outside chances but a specific block of six numbers paying 5:1 with a hit chance of only 16.22% per spin.
What is the Dominance system in roulette?
Unlike Martingale, Dominance does not double the bet after every loss. It uses a prepared 14-step sequence: 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 5, 6, 7 units. If the chosen six line fails to land across those 14 spins, you accept a loss of 39 units and start over.
That construction is exactly what makes Dominance interesting to analyse. It is not as explosive as Martingale, because the bets do not grow exponentially. But it also backs a far smaller part of the layout than a colour bet. Hits come less often, waits can be long and runs without a hit are unpleasant for a bankroll — so the system often feels slow and uneven, even though outwardly it does not look aggressive.
The rules of the Dominance system
The basic rules are simple. You choose one double street, for example the six numbers 1–6. On the first spin you bet 1 unit. If the six line does not land, you move to the next step of the progression. If it does, the run ends and you start again from the first unit.
The complete betting sequence in the original test is 1–1–1–1–1–2–2–2–3–3–4–5–6–7, and the whole run sums to 39 units. The profit on a hit depends on which step the win arrives at: the six line pays 5:1, so a 1-unit bet brings a gross gain of 5 units — but on a late hit part of the win merely makes up earlier losses. That is why the profit of a single round is not as easy to see as with systems that always aim at the same target.
What does the house edge do to Dominance?
The house edge means the expected value of a bet is negative for the player over time. On European roulette it is roughly 2.70%, on American, because of the double zero, roughly 5.26%. These values are built directly into the ratio of payouts to probabilities — a six line paying 5:1 fits a layout of 36 numbers, but the wheel has 37.
Dominance changes neither the count of numbers in your six line, nor the payout, nor the probability of the next spin. It changes only how much you bet after a previous miss. Which is why the original long-run test also finished negative: in its basic form the system sank below zero, with a loss of roughly 2,000 units over 25,000 spins. That is a smaller decline than with the aggressive systems, but the direction is the same — downward over time.
The Dominance variants that were tested
The original test first tried varying the length of play, shortening or extending the number of steps in a run. The result did not change materially: the system can have positive stretches, but its long-term character stayed negative. A shorter run (10 steps) risks fewer units at a time but meets a full loss far more often — in roughly 17% of rounds.
A further attempt used a classic linear progression of runs. The chart showed a rising trend, but at the price of large local drawdowns in the hundreds of thousands of units. In principle that already approaches Martingale: the system looks good until a run arrives that demands an enormous bankroll.
The last variant tested was a wait factor. The player did not begin betting at once but waited until the chosen six line had gone unhit for a while — 10 or 20 spins, say. At a wait factor of 10 the effect was not pronounced. At 20 the chart did behave differently, but frequent drawdowns of over 10,000 units appeared, along with the practical problem of waiting: with a bet on one particular six line, the interval between opportunities can be so long that you would realistically bet only very rarely.
The biggest risks of the Dominance system
The first risk is the low hit frequency. A six line pays better than a colour bet, but it hits on only 16.22% of spins on European roulette. Several unsuccessful spins in a row are therefore not an extreme event but an ordinary part of the game — and you will see a longer wait for a hit in almost every run of the simulator.
The second risk is a false sense of safety. The progression 1–1–1–1–1–2–2–2–3–3–4–5–6–7 does not look as dangerous as doubling. Even so a whole round can repeat many times over and the losing runs add up. The third risk is the practical playability of the waiting variants: if a system requires waiting so long that you rarely get to place a real bet, it loses its practical point.
How to read the bankroll chart
A Dominance chart looks different from a Martingale one. Instead of long calm stretches and rare chasms you see a saw: a slow decline between hits, a jump up on a win, and a harder step down after a fully lost run. The individual wins are not what matters but the overall trend — and for the basic variant that is negative over time.
That is why the simulator above has a toggle between the bankroll chart and the bet-size chart. The second view shows how the bet climbs from 1 to 7 units across a run, and how often the progression reaches its expensive late steps.
How to use Dominance sensibly in the tester
The best way to understand Dominance is not to play one demonstration run. It is far more useful to run several simulations with the same settings and watch how much the results differ. One time the system finishes slightly ahead, the next it is ground down by several full runs in quick succession. That is not a flaw in the simulation but the natural property of a bet with a low hit frequency.
Watch four figures above all: the final bankroll, the maximum drawdown, the longest wait for a hit, and the number of fully lost runs. To compare it with Martingale, Fibonacci or your own strategy on identical spins, use the Roulette system tester.
The verdict: is the Dominance system usable?
Dominance is an interesting system for studying probability, but not a reliable route to profit. It shows that even a slower, seemingly controlled progression cannot get around the mathematics of roulette. In the long-run test the basic variant fell below zero, and the attempts to improve it either changed nothing material or produced extreme drawdowns and practically unplayable waiting.
The greatest value of Dominance is educational. It shows the difference between colour systems and inside-bet systems well: a colour wins often for a small payout, a six line wins less often for a larger one. But neither on its own changes the casino’s house edge.
The biggest misconceptions about Dominance
Inside-bet systems tempt with a higher payout and a “controlled” progression. Here are the most common errors, explained so a beginner can follow them.
Every spin is a separate event. The chance of your six numbers stays 6/37 no matter how long they have gone unhit.
A full run costs 39 units and arrives in roughly 8.4% of rounds. As they repeat, these runs stack into deep drawdowns.
That difference is precisely the 2.70% house edge. No arrangement of bets over time removes it.
A wait factor of 20 produced drawdowns of over 10,000 units in the test, and waits so long that the system became practically unplayable.
Dominance vs. other roulette systems
Dominance sits between the simple inside systems and the progressive strategies. It does not escalate as fast as Martingale, but it suffers from a low hit frequency.
| System | Risk | Principle | Best for |
|---|---|---|---|
| Martingale | Very high | Doubling the bet after a loss | Understanding the risk of a progression |
| Fibonacci | High | A progression following the Fibonacci sequence | A slower progression after a loss |
| Labouchere | High | A cancellation line; the bet is first + last | More advanced players and experiments |
| Reverse Labouchere | High | The line grows on a win and is crossed off on a loss | Hunting streaks with a capped loss |
| Parlay | Medium | The win stays in play (let it ride) | Short runs after a win |
| Bally | Very high | 24 numbers with a 12–36–108–324 progression | Blanket bets with a harsh progression |
| Charlotte | High | A single-number progression over 88 spins | Hunting the 35:1 payout to a plan |
| Dominance | High | A double street following the dominant side of the table | Players who follow trends |
| Double 10 | High | One number, stepping up after 10 misses | Patient single-number hunters |
| FAST | High | 33 numbers, low and high units | Maximum table coverage |
| Havana | High | One dozen, two levels of units | Dozen players |
| Holy Grail | High | 18 distinct numbers with a progression | Covering half the wheel |
| John Wayne | High | A spread of 18 numbers for 10 units | Combined bets on numbers |
| Numeric Scanner | High | Repeating numbers with a progression | Players who love stats and tables |
| Seven Corners | Medium | Seven corner bets, 27–28 numbers flat | Blanket bets with no progression |
| System 300 | Very high | 34 of 37 numbers, a rare 300-unit loss | Understanding asymmetric risk |
| Five-number system | High | Five numbers, progression blocks of 1-6-11-16 | Hunting the 35:1 payout on a budget |
The name of a system takes you to its page with an interactive test — the current system is highlighted. Want to compare several systems on the exact same sequence of spins? Use the Roulette system tester.
Common questions about the Dominance system
Is the Dominance system profitable?
Not in the long run. The original test over 25,000 spins showed a negative trend with a loss of roughly 2,000 units, and none of the adjustments removed the casino’s mathematical edge.
Which bet is Dominance used on?
One chosen six line, or double street — six adjacent numbers on the roulette layout. The example uses the numbers 1–6, paying 5:1.
What is the probability of a hit?
On European roulette it is 6 of 37 numbers, so roughly 16.22% per spin. On American roulette 6 of 38, so roughly 15.79%.
Why is the risk of 14 losses so high?
Because the probability of one six line missing is 31/37. Fourteen misses in a row have a probability of roughly 8.40%, which as the system repeats shows up fairly often — about every twelfth round.
What does one fully lost run cost?
The progression 1+1+1+1+1+2+2+2+3+3+4+5+6+7 sums to 39 units. At a $100 unit that is $3,900; at a $250 unit already $9,750.
How much do I earn when the six line lands?
It depends on the step at which it hits. The six line pays 5:1, so after deducting the earlier losses the net profit of a closed round is 1 to 5 units. An early hit earns more; a late hit mostly makes up the losses.
Does the waiting variant (wait factor) help?
No. Waiting for a longer gap in the six line does not change the probability of the next spin — the wheel has no memory. In the test a wait factor of 20 also produced drawdowns of over 10,000 units and an enormous amount of idle time.
Is Dominance better on European or American roulette?
European is better: the hit chance is 6/37 rather than 6/38, and the risk of a full run is 8.40% rather than roughly 9.02%. The double zero of American roulette worsens every inside bet.
Is Dominance safer than Martingale?
The bets do not grow exponentially, so a single run will never push you into an extreme bet. But the low hit frequency and the repeating losing runs create a risk of their own — a slow, persistent decline with occasional steps down.
What bankroll do I need for Dominance?
One run costs up to 39 units, but full losses can arrive in quick succession. To survive several bad rounds in a row, count on a bankroll of at least a few hundred units — and above all on the fact that even a large bankroll does not change a negative expectation.
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First understand the principle, then work out the risk — and test longer scenarios over thousands of spins.