As we already discussed, inside bets are those made directly on the main area of numbers. This bet category features straight-up bets (one number) paying 35 to 1 through line bets (six numbers) paying 5 to 1. Column bets, dozens bets, and any bets paying even money are not encompassed.
Overdue Numbers
Many systems, which rely on inside bets, have as their basis the notion of the ”awakening sleeper”, or we may call it the concept of overdue numbers.
A number is not “overdue” after a long absence. On a fair wheel its chance on the next independent spin is 1/38 for double-zero roulette or 1/37 for single-zero roulette, regardless of past results. An average frequency is not a deadline by which it must appear.
Over many independent spins, relative frequencies tend towards their probabilities. This does not require past shortfalls to be repaid by future wins, even over a long session.
Roulette Wheel Randomness
A number missing for 80 spins is possible by chance. That observation alone is not evidence that the wheel is biased or that the number should be backed next.
Assessing a physical wheel’s fairness requires suitable testing and evidence, not a short list of recent results.
Physical defects could affect a wheel, but a player cannot diagnose a particular defect simply because one number has not appeared recently.
Something else to remember is that a roulette wheel has no memory of past events. Each ball spin is an event, which has nothing to do with the past.
If the roulette wheel is indeed random, the probability of success for a specific number still remains 1 out of 38, regardless of how long it has been since the last time this particular number emerged as a winner. If the number 33 won six times in the past 38 ball spins, that would be six times what was anticipated. However, the probability of the number 33 winning on the 39th ball spin remains precisely 1 out of 38, given that the roulette wheel has no bias.
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One may ask, what has become of the so-called ”law of averages”? Does it still apply?
A number can remain absent far longer than the average waiting time. Chasing it can exhaust a budget before it returns, and its eventual appearance does not establish a profitable strategy.
So, what conclusion can be drawn?
That every reasonable player will abstain from basing his/her inside bet system on the concept of overdue numbers.
Playing the System
The following progression changes the number of pockets covered and later raises stakes. It illustrates a staking method, not a way to improve the expected return.
The betting sequence is as follows: First, a player makes a dozens bet (which belongs to the outside bet category), then he/she places line bets, corner bets, split bets and straight-up bets. The progression is shown in the table below:
| Bet Number | Type of Bet | Payout | Bet Amount(Units) | Net Loss | Net Win |
|---|---|---|---|---|---|
| 1 | dozens | 2 | 1 | 1 | 2 |
| 2 | dozens | 2 | 1 | 2 | 1 |
| 3 | line | 5 | 1 | 3 | 3 |
| 4 | line | 5 | 1 | 4 | 2 |
| 5 | line | 5 | 1 | 5 | 1 |
| 6 | corner | 8 | 1 | 6 | 3 |
| 7 | corner | 8 | 1 | 7 | 2 |
| 8 | corner | 8 | 1 | 8 | 1 |
| 9 | split | 17 | 1 | 9 | 9 |
| 10 | split | 17 | 1 | 10 | 8 |
| 11 | split | 17 | 1 | 11 | 7 |
| 12 | split | 17 | 1 | 12 | 6 |
| 13 | split | 17 | 1 | 13 | 5 |
| 14 | split | 17 | 1 | 14 | 4 |
| 15 | split | 17 | 1 | 15 | 3 |
| 16 | split | 17 | 1 | 16 | 2 |
| 17 | split | 17 | 1 | 17 | 1 |
| 18 | straight-up | 35 | 1 | 18 | 18 |
| 19 | straight-up | 35 | 1 | 19 | 17 |
| 20 | straight-up | 35 | 1 | 20 | 16 |
| 21 | straight-up | 35 | 1 | 21 | 15 |
| . | . | . | . | . | . |
| . | . | . | . | . | . |
| 34 | straight-up | 35 | 1 | 34 | 2 |
| 35 | straight-up | 35 | 1 | 35 | 1 |
| 36 | straight-up | 70 | 2 | 37 | 35 |
| 37 | straight-up | 70 | 2 | 39 | 33 |
| 38 | straight-up | 70 | 2 | 41 | 31 |
| 39 | straight-up | 70 | 2 | 43 | 29 |
| 40 | straight-up | 70 | 2 | 45 | 27 |
| etc |
Playing the Martingale System
The D’Alembert System
The Labouchere System
Playing the Labouchere System
Roulette Inside Bet System
The line bet should be within the span of the dozens bet, the corner bet should be within the span of the line bet, the split bet should be within the span of the corner bet and finally, the straight-up bet should be on one of the two numbers in the split bet.
The selected number is covered throughout the initial progression. Earlier group bets have a higher hit rate but lower payouts than a straight-up bet. Restarting after a win does not guarantee an eventual profit: continued losses can exhaust funds or exceed a table limit.
The table increases the stake after blocks of losses. Its Payout column represents profit on the winning bet in units, before subtracting earlier losses. Increasing stakes or removing steps changes the exposure; it does not remove the house edge.
Last but not least, it is important to note that no matter what action a player may take, the overall odds remain unchanged.
Further reading: Gambling Commission standards for random outcomes.
