Losing 4 Spins in a Row at 18x
The chance of 4 losing spins in a row at 18x on the Wheel is 81.45%, or 1 in 1.23. At 18x a single spin loses 95% of the time.
The odds of 4 losses in a row
| Measure | Value |
|---|---|
| Chance of one loss at 18x | 95% |
| Chance of 4 losses in a row, starting from a given spin | 81.45% |
| Odds | 1 in 1.23 |
| Spins to wait for it, on average | 4.6 |
| Chance it happens at least once in 100 spins | 99.9%+ |
| Chance it happens at least once in 500 spins | 99.9%+ |
| Chance it happens at least once in 1,000 spins | 99.9%+ |
| Chance it happens at least once in 10,000 spins | 99.9%+ |
| Stake lost across the streak (1 per spin) | 4 |
| Stake a double-after-every-loss plan would need to survive it | 15 |
The average wait counts spins until the first run of 4 losses is completed. It is an average over many players, and any individual can see it on their first 4 spins or never. The "at least once" figures are exact: they account for a run starting on any spin, not just the first.
What it means
A streak of 4 losses has a probability of 95% to the power of 4, which is 81.45%. It is rare for any one run of 4 spins, but it does not stay rare if you keep going: across 500 spins the chance that it appears at least once is 99.9%+.
The next spin is not owed a win. After 3 losses the chance of a win on the next spin is still exactly 5%. The wheel has no memory, and a fresh provably fair roll is generated for each spin. Believing a win is overdue is the gambler's fallacy, and it is the most common reason stakes grow during a bad run.
Doubling after a loss does not fix it. Doubling the stake until a win needs 24 − 1 times your first stake to survive 4 losses in a row, and a table limit or an empty balance ends the plan well before the maths evens out. The 10% house edge applies to every stake in the plan, so betting more does not change the expected loss per unit staked.
Related
- 5 losses in a row at 18x
- Every losing streak at 18x
- The 18x multiplier in full
- 4 losses in a row at 9x
- 4 losses in a row at 10x
- 4 losses in a row at 12x
- 4 losses in a row at 15x
- 4 losses in a row at 20x