Positive progression system, similar to the Paroli System.
The name of this system says it all. It is similar to the Paroli system. It is based on the premise that you can win four times in a row.
Your initial bet is 1 unit, the second 3 units, the third 2 units and the fourth 6 units. Let's assume that each unit is $10 and the odds are 1:1 - even money.
The first bet is $10. When winning, $10 is added to the $20 on the table making the second bet $30. When winning again on the second bet, there would be $60 on the table. Of this you take down $40 and the third bet is now $20. If the third bet wins, you will have $40 on the table to which you add $20 making a total of $60 for the fourth bet.
If the fourth bet wins, there would be a total of $120 on the table, all of which is net profit. Now all the bet is taken down and you start the system all over again at $10. Also, each time you lose, at any level, you start all over again at $10.
If you lose the first bet, your loss is $10. The second level loss is $20 (because you added another $10). At the third level, a loss will give you a net profit of $20 (because you have taken down $40). At the fourth level, a loss leaves you breaking even (because you put back $20 out of the $40 taken down).
The attraction of this system is that you risk $20 at a chance of making $120 net profit. This means you can lose six times at the worst level (second bet), and with one win (a set of four wins in a row) get your money back.
* Positive progression betting systems: You increase the bet when you win. Kind of 'let-it-ride'. Require less capital and usually employed to take advantage of winning streaks. (No sweat, easy ride. My favorite.)