The whole point of having a strategy for online blackjack is to win more. And winning more means more money. There is one play in online blackjack that can increase your profit faster. It should also be a big part of your online blackjack strategy as well.
Doubling down is one of the basic plays in blackjack. It is when you double the amount of your original wager and only receive one more card. If you win the round you win double the amount you would have normally won because you doubled your original wager.
It has the same potential of winning a round as two rounds of blackjack. In effect, if you double down at the right moments (read: play according to basic strategy) you can earn twice as much money as you normally would. That is what makes doubling down such a strong play in online blackjack.
If you can double down when it is most advantageous (again, read: play according to basic strategy) you can reduce the houses edge by 1.6%. This is all because you are winning twice as much money in one hand as you normally would.
Let’s take a look at the math. You are playing online blackjack and are wagering $10 per round (flat betting, another good online blackjack strategy). At the beginning of a new round you are dealt a hard 10 against a dealer’s 7.
According to basic strategy, you should double down here. And you do. You increase your wager from $10 up to $20. In this case we will say that you are dealt a 10, giving you a hard 20. The dealer only makes it to a hard 18. You win. But because you wagered $20 you receive a payout of $40.
If you had not doubled down and still won, you would have only won $20. Instead you made $40, which is a nice increase to your bankroll.
But you can see how doubling down helps you to increase you profit from online blackjack as long as it is used correctly in your blackjack strategy.