# The Fibonacci betting system

The Fibonacci sequence is a number sequence where each number is the sum of the two previous numbers. It starts with 0, 1, 1, 2…. and can continue indefinitely.

The Fibonacci betting system, which is based on the Fibonacci number sequence, is used for bets where you win at least 1:1 when you win, such as Blackjack or Red/Black on the roulette table.

You start out by deciding the size of your base unit. For practical reasons, it is a good idea to pick the table minimum bet as your base unit.

You start out by making a bet the size of your base unit.

- Each time you lose, you take one step to the right in the Fibonacci sequence. You multiply your base unit with that number to find out how large your next bet should be.
- Each time you win, you take two step to the left in the Fibonacci sequence. You multiply your base unit with that number to find out how large your next bet should be.

As you can see, having the starting part of the Fibonacci sequence in front of you at the blackjack table will make this much easier.

Here are all the numbers below one thousand: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987

Since a zero bet would be pointless, you start at 1 when you use the Fibonacci sequence at the blackjack table.

## Example

- You play at a blackjack table where $10 is the minimum bet, so you pick $10 as your base unit.
- $10 x 1 = $10
- You bet $10 and win. Since you can’t go back from from 1, you stay where you are.
- You bet $10 and lose.
- You take one step to the right in the sequence.
- $10 x 1 = $10
- You bet $10 and lose.
- You take one step to the right in the sequence.
- $10 x 2 = $20
- You bet $20 and lose.
- You take one step to the right in the sequence.
- $10 x 3 = $30
- You bet $30 and lose.
- You take one step to the right in the sequence.
- $10 x 5 = $50
- You bet $50 and lose.
- You take one step to the right in the sequence.
- $10 x 8 = $80
- You bet $80 and lose.
- You take one step to the right in the sequence.
- $10 x 13 = $130
- You bet $130 and win!
- You take two steps to the left in the sequence.
- $10 x 5 = $50. Your next bet should be $50.
- And so on….

## Risk

Using the Fibonacci number sequence at the blackjack table is not free of risk. There is nothing magic about this number sequence that can guarantee a profit.

As you can see, you can quickly reach really high bets if you have many losses. The sequence starts out low at first, but with a $10 base unit you can soon find yourself betting $130 – $210 – $340- $550 – $890 – $1,440 – $2,330 and so on….

There is a distinct risk that you reach the upper bet limit for the blackjack table and is forced to give up your endeavor, since you wont be able to raise the bet anymore.

Each win will only take two steps to the left, so even if you win now and then, you can still be progressing quickly to the right. This makes the Fibonacci system very different from the systems where you go back to a base unit bet as soon as you win.

Of course, for gamblers with small bankrolls there is also the risk of running out of money, but this risk isn’t a problem with the system itself and it can be mitigated by playing at blackjack tables that are inexpensive in relation to the size of your bankroll.