Every betting system, tested to destruction
Fourteen systems. Identical conditions ($5 base, $500 bankroll, $500 max, 100 spins, European wheel). 200,000–1,000,000 sessions each. Every single one paid the wheel between 2.69% and 2.78% — the edge, untouched. What varied was everything else: bust rates from 0% to 94%.⚙ computed
| System | Type | Bust | Median | Edge | |
|---|---|---|---|---|---|
| All-in (double or nothing) | maximum variance | 94.3% | $0 | 2.71% | verdict → |
| Labouchere | cancellation system | 60.9% | $0 | 2.72% | verdict → |
| Grand Martingale | negative progression, aggressive | 48.1% | $365 | 2.77% | verdict → |
| Martingale | negative progression | 32.6% | $690 | 2.69% | verdict → |
| D'Alembert | negative progression, gentle | 27.7% | $555 | 2.71% | verdict → |
| Fibonacci | negative progression | 17.2% | $575 | 2.73% | verdict → |
| Oscar's Grind | grind to +1 unit | 13.7% | $555 | 2.73% | verdict → |
| Hollandish | block progression | 8.3% | $500 | 2.71% | verdict → |
| Flat betting | control — no system | 0.0% | $490 | 2.71% | verdict → |
| Paroli (Reverse Martingale) | positive progression | 0.0% | $475 | 2.69% | verdict → |
| Reverse D'Alembert | positive progression | 0.0% | $315 | 2.74% | verdict → |
| Reverse Fibonacci | positive progression | 0.0% | $405 | 2.78% | verdict → |
| 1-3-2-6 | positive progression ladder | 0.0% | $470 | 2.70% | verdict → |
| 1-3-2-4 | positive progression ladder | 0.0% | $470 | 2.70% | verdict → |
Beyond progressions lives the pattern family — fixed multi-bet spreads like the James Bond 14/5/1: three bets, 67.6% win rate, and the same 2.70% bill, proven pocket by pocket.
The pattern is the entire truth: negative progressions (Martingale family) buy frequent small wins with rare catastrophes; positive progressions (Paroli family) can’t bust in a session but bleed steadily; flat betting is the honest baseline everyone secretly reverts to. All at the same price. Full method: methodology & open dataset.
Frequently asked
What is the best roulette betting system?
Measured by average cost: none — all fourteen paid the wheel its exact edge in our runs. Measured by experience: positive progressions (Paroli, 1-3-2-6) never busted a session in 200,000 tries, while Martingale busted a third and All-in busted 94%. Pick your ride; the fare is fixed.
Do betting systems ever beat the house edge?
No system that only changes bet sizes can — each spin is independent and every bet on a wheel carries the same negative expectation. Our million-session Martingale run realized 2.69% against a 2.70% wheel: agreement to a hundredth of a percent.