BlackjackGuru's Blog

For Smart Women Only: Make Blackjack Pay

Your Blackjack Hand: 10

Posted by blackjackguru on June 16, 2009

6 decks, S17, DAS, No Surrender, Peek
Estimated casino edge for these rules: 0.44 %
Dealer Upcard
2 3 4 5 6 7 8 9 10 A
10 D D D D D D D D H H

When you have a 10-valued card, doubling down will lead you to expect the strong total of 20. So, be sure to double down when the dealer shows upcards of 2 to 9.

However, do not double against the dealer’s 10 or A. If the dealer shows a 10, you can expect their total to be 20. So don’t double when the best you are likely to expect is a push. And if the dealer shows an Ace upcard, s/he will usually end up with a strong total, and will not bust often. You will lose more in the long run doubling down against the dealer’s 10 or A.

Common Loser Mistakes:

Being afraid to double down against the dealer’s 7, 8, or 9. The loser is afraid that the next card might be small, and is trapped with a stiff hand that cannot be further improved with another hit. The Advantage Player knows that although the percentage of hands won by doubling down is lower than just hitting until a pat hand is reached, the total dollars wagered is greater than with just hitting, which results in more overall money won. And it’s the money won, not the hands won, that matters.

Did You Know..?

In some instances, there is an advantage to doubling down 10 vs dealer’s 10. If you see a player do it, she may be an Advantage Player who knows how to Count Cards. You will learn about this Advanced Strategy in a later section. For now, it is best just to hit your 10 vs dealer’s 10 until you learn the Advanced Strategy.


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