Best Roulette Strategies. ...

The Reverse Martingale Strategy. ...

The D'Alembert Strategy. ...

The Fibonacci Strategy. ...

The James Bond Strategy. ...

The Labouchere Strategy. ...

The Paroli Strategy.

Losses won't be as drastic as with other strategies like Martingale - as the stake doesn't drop as dramatically when you win, it's easier to make up losses (provided you win a few bets!)

It's quite a simple sequence to calculate and follow, with no complicated math.