Roulette strategy trainer
Test any roulette betting system over hundreds or thousands of spins on a European wheel — and see, with your own eyes, how it really performs before you ever risk a penny.
Double after every loss, reset on a win.
European wheel · even-money bet · 2.70% house edge. Results are random and for education only.
Test a strategy
Pick a system, set your bankroll, and run up to 2,000 spins to see how it really holds up.
How the trainer works
Each spin simulates a European single-zero wheel — 37 pockets, an even-money bet (like red or black) that wins 18 times in 37, giving the house its 2.70% edge. The trainer applies your chosen staking system spin by spin, tracks your bankroll, and charts the result. Run it a few times and a pattern emerges: progression systems like Martingale can string together small wins, then one losing run wipes the bankroll out. The edge is relentless over enough spins — which is exactly why practising on a free demo game beats testing theories with real money.
The systems you can test
- Martingale — double after every loss. Fast bankroll growth, brutal busts.
- D'Alembert — gentler: up one unit on a loss, down one on a win.
- Fibonacci — climb the sequence on losses, step back two on wins.
- Paroli — the reverse Martingale: press your wins, cut your losses.
- Flat betting — the control. The same stake every spin shows the raw house edge.
For the full breakdown of which holds up best, read our best roulette strategy analysis, or brush up on the odds behind every bet first.