Blackjack Double Down

There are many kinds of player decisions that can be made when playing blackjack. Examples are Blackjack double down, hit, stand, split and surrender.  These options are made available after the player receives the initial two cards. Each of these options has different hand signals.

What is double down?

Double down is an option, which can only be done after receiving the first two cards. For this option, players are permitted to increase their initial bet by as much as 100% but they should stand after receiving one card.  A double down is represented by placing the additional chips beside the initial bet and pointing with one finger. Many casinos allow players to double down on any two cards. This is known as DOA. But some casinos also only allow doubling down after splitting (DAS). Others also only allow players to double down when their hand have a total of ten or eleven. Most of these rules are actually favorable to players.

When to double down?

As mentioned above, doubling down is very favorable to players because they get the chance to win more money. Knowing the mathematics of the game will help many blackjack players know when to double. Blackjack double down has been analyzed by many mathematicians and some computer simulations have been done to determine the best time to use this option. According to experts, it is best to double down when the up card of the dealer is a 4, 5 or 6. This is because the dealer has a high percentage of busting. For instance, based on studies done, when the dealer’s up card is a 6, the dealer’s bust percentage is 42%. Therefore when the dealer’s up card is 7 or higher, do not double down. Players should also double down when they get a 10 or a face card, which is equivalent to 10, because they have a high percentage of winning. In addition, it is also recommended to double down when you receive an ace plus any numbered card while the dealer has an up card of 3, 4, 5 or 6. This is because the dealer will probably break or draw.

Doubling Down Strategies

There are also some specific blackjack double down strategies players can memorize and use to improve their chances of winning. These strategies are based on the hand value they have.

  • Hard 11- Double down when your hand value is hard 11 because you have an approximate 30% chance of winning. The dealer will probably win, only if he/she has a blackjack.
  • 10- Double down also when you have a hand value of 10 because you have a good chance of getting a 20 value hand.
  • Hard 9- This is a good hand so you can still double down. However, when the dealer’s up card is 8, 9, 10 or an ace, think twice before doubling down.
  • Hand value of 8- Do not double down.
  • Hand value higher than 11- Do not double down when you have a hand value higher than 11 because chances are you will bust.

Hand value lower than 8- Do not double down unless you are an experienced player and you think the dealer will bust. Only players who are good at card counting should double down with this kind of hand.

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