The Parlay Blackjack Betting System
A Positive Progressive Betting System for Blackjack
The system is called "progressive", because with each progressive win or loss, the bets are increased or decreased accordingly. In other words, the bet on each hand is determined by what happened on the hand before.
Finally, the Parlay is a "positive" because it call for your bet to be increased after a win and decreased after a loss. The Paroli and Oscar's Grind are similar positive systems. The opposite is a "negative" system, such as the Martingale and the d'Alembert, that advise decreasing your bet after a win and increasing after a loss.
A Positive Progressive Betting System: Now It Makes Sense
In the case of the Parlay system, when a player wins he bets his winnings plus his original bet and continues to do so on each successive winning hand. When he loses he goes back to his original bet.
You Can Parlay in the Online Casino
A variation of the blackjack Parlay system is also used in horse racing. It is similar to the method that banks use when they compound interest: they give interest on the principal for one quarter and then give interest on the interest (and the principal) the following quarter and so on. What's good at the racetrack or the bank can also work at the online casino.