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Game guide

Roulette: a simple game with a fixed house edge. the wheel doesn't care about your "system.".

European single-zero roulette gives you the best odds; American double-zero nearly doubles the house edge. No betting system (Martingale, Fibonacci, D'Alembert) changes the long-term math. They change the shape of your bankroll, not the edge.

House Edge1.35% (French / La Partage) – 5.26% (American double-zero)

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Strategies for roulette

Editorial illustration of a roulette wheel from above with alternating red, black, and green segments and a white ballRoulette3.6
High riskIntermediate

Roulette Systems Tested: Martingale, Fibonacci, D'Alembert

Every betting system in roulette eventually loses for the same reason: the wheel doesn't remember. We tested the three most-recommended systems over 50,000 simulated spins. Here's what actually happens to your bankroll.

13 min readRead review
StrategyRiskRating
Roulette Systems Tested: Martingale, Fibonacci, D'AlembertHigh3.6