When a lot of players start out with roulette, they use the more risky Martingale system which normally results in a lot of small wins and then a big loss so the Fibonacci is a much safer system to fall back on. The rule with the Fibonacci is that your next bet is determined by adding the previous two together, so if you started with a bet of 1, this is what the betting line would look like –
1 – 1 – 2 – 3 – 5 – 8 – 13 – 21 – 34 – 55 – 89
Due to the way in which the numbers progress, it is instantly a much safer option than the Martingale and gives you room for more consecutive losses before you go bust or hit the table limits. You may have noticed that the numbers don’t directly add up in terms of covering all your losses when you win but that’s the whole idea behind this system.
It doesn’t try to recover losses all in one go like the Martingale, instead it claws them back slowly over several wins by moving up and down the line depending on whether you win or lose on each spin. After a loss, you will move up one step in the line by adding together the previous two bets. After a win, you will move back down the line by two steps. Once you get back to the start of the line, your profit will be the number you started with in the first place.
A positive aspect of this system is that you can have twice as many wins as losses and still come out on top in the end. The obvious downside is that after a losing run, you will need to continue betting large amounts to bring the amount back down so a large bankroll is required to cover this eventuality.
It is also a slow system because after a 10 losses in a row, it will take another 5 spins at least to get back to your starting bet which is 15 spins in total just to win 1, during which time you would’ve wagered 100’s in the process. That’s the risk of the Fibonacci or any system for that matter. There’s always a risk which you should weigh up before you begin playing.