Martingale or Fibonacci? Roulette Systems Compared

Martingale: double after every loss

Bet on an even-money outcome such as red. After a loss, double the stake; after a win, go back to the start. One win recovers all previous losses plus one unit.

Fibonacci: follow the sequence

Stakes follow the sequence 1, 1, 2, 3, 5, 8, 13… After a loss you move one step forward; after a win you move two steps back. Stakes rise more slowly than with Martingale.

What a losing streak costs (₹100 unit)

On a single-zero wheel, the chance of losing seven even-money bets in a row is about 1 in 106. Over a long session that's not rare — and it's exactly when Martingale needs a huge stake or hits the table limit.

Why neither beats the house edge

On European (single-zero) roulette, the house edge is 2.7% on every bet. Changing stake sizes doesn't change that: each spin is independent, and the zero is always there. Systems change the shape of your results — many small wins and occasional big losses — not the long-run average.

If you use a system anyway

• Set a maximum number of steps and accept the loss when you reach it.
• Check the table limit before you start.
• Prefer single-zero tables over double-zero ones.
• Fibonacci is gentler than Martingale, but neither is a way to make money.

See our bankroll basics for limits that keep play fun.