Do you doubledown in BJ with your 11 against a Dealer A showing ???

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They have NO blackjack you have 11.. is it always right to doubledown?

does it matter if your playing a 6deck shoe or a single deck game on whether to do this or not?
 

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For four or more decks if you're playing at a table where the dealer hits a soft 17, double on an 11 vs. an Ace. If they stand on a soft 17, don't.

In single- and double-deck games, double that sucker always.

That's what The Book says. Of course The Book isn't risking its hard-earned money at the table.
 

Rx. Senior
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Playing basic strategy always double 11

Counting it is not always the correct play if the count is negative. But a negative count is when you have your smallest best, so it will cost very little
 

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For those of you who rely on superstitions, instincts, and gut calls - play this way and I can guarantee you will LOSE less money over the long run..note that you will NOT WIN money this way over the long run. BTW this is for multiple deck games (4 or more) and it plainly says to hit vs a dealer A.

Blackjack Strategy Chart Multi-Deck.jpg
 

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I see lots of different views on whether to do this or not

read this today

Let's assume you are playing a typical six-deck game where the dealer must stand on soft 17 (s17). In this game, your 11 is not stronger than her Ace. Sure, her Ace counts as 11, which equals your hand total of 11, but there's one big difference. If the dealer goes over 21 while drawing cards to her hand, she can count the Ace as a 1. Because of this, her chance of busting with an Ace upcard, assuming she has checked her hole card and doesn't have blackjack, is relatively low (in fact, she'll bust only 17 percent of the time). Here are the exact dealer probabilities for the final hands that she will wind up with when she has an Ace upcard (and doesn't have a blackjack):

<table class="MsoTableGrid" style="border-collapse: collapse; border: medium none;" border="1" cellpadding="0" cellspacing="0"> <tbody><tr> <td style="width: 73.5pt; border: 1pt solid windowtext; padding: 0in 5.4pt;" valign="top" width="98">
17 or More​
</td> <td style="width: 73.55pt; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: windowtext windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
18 or More​
</td> <td style="width: 73.55pt; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: windowtext windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
19 or More​
</td> <td style="width: 73.55pt; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: windowtext windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
20 or More​
</td> <td style="width: 73.55pt; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: windowtext windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
21​
</td> <td style="width: 73.55pt; border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: windowtext windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
Bust​
</td> </tr> <tr> <td style="width: 73.5pt; border-width: medium 1pt 1pt; border-style: none solid solid; border-color: -moz-use-text-color windowtext windowtext; padding: 0in 5.4pt;" valign="top" width="98">
83%​
</td> <td style="width: 73.55pt; border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
65%​
</td> <td style="width: 73.55pt; border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
46%​
</td> <td style="width: 73.55pt; border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
27%​
</td> <td style="width: 73.55pt; border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
8%​
</td> <td style="width: 73.55pt; border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: -moz-use-text-color windowtext windowtext -moz-use-text-color; padding: 0in 5.4pt;" valign="top" width="98">
17%​
</td> </tr> </tbody></table> The above probabilities clearly show that the dealer is not very vulnerable when she shows an Ace upcard.
Now let's look at what happens when you double down on your 11. The fact that you are doubling means you get only one draw card. Of course, you are hoping for a 10-value card, which will give you 21. But suppose instead you get dealt a small card, like a 3, for a 14. Unfortunately, you are stuck with a 14 because you can't draw again. And that's the big advantage that the dealer has: If she has an Ace-3 for 14, she can draw again. And if during the process of drawing more cards to her hand she goes over 21, she has another chance to make good because she can count her Ace as 1 and continue to draw. You, on the other hand, have no options if you doubled down and have a 7-4-3. By the rules of the game, you must stand with your 14. And that's why your 11 is not nearly as strong as her Ace in this game.
So here's the best strategy for playing an 11 against a dealer's Ace in a six-deck game with s17: You should hit 11 against a dealer's Ace upcard until you get to a count of at least 17. This means if you hit and draw a 3 for 14, hit again. If your next draw card is a 2, giving you 16, hit again. Just remember to keep drawing cards until the total of your hand is 17 or more.
Now what happens if you find yourself in a six-deck game where the rules specify that the dealer must hit soft 17 (h17), or you are playing a double-deck game. It turns out the probabilities change just enough to make doubling 11 the better play than standing in some situations. I don't have the space to go into the math, so I'll just summarize what the best strategy is.
If you are playing in a six-deck game and the dealer must hit soft 17, then you should double down 11 against the Ace (not hit).
If you are playing a double-deck game -- hold onto to your hats for this one -- the right way to play it depends on whether the game is s17 or h17 and sometimes the make-up of the cards in your hand. For example, in a double-deck game with s17 or h17, always double down with this exception: if you hold a 9-2 or 8-3 in an s-17 game, you should hit (with 7-4 or 6-5, you should double down.)
.
If you find remembering this strategy change based on the rules and number of decks of cards a little daunting, I'd suggest you bring a set of strategy cards with you when you play blackjack. The ones I recommend are the Ultimate Blackjack Strategy Cards by Don Schlesinger, and the Basic Strategy Cards by Ken Smith (they are both in my gambling catalog at smartgaming.com). Schlesinger's strategy cards consist of a set of three covering single-, double-, and multiple-deck games with s17 and h17 (they also contain the strategy that depends upon the composition of your hand). Smith's strategy cards consists of a set of six cards that also cover the h17 and s17 games for single-double- and multiple-deck games (they are a smaller size card that easily fit in a shirt pocket or wallet).
If you are planning a trip to a casino and you know, for example, that they offer double-deck and six-deck blackjack games, but you are not sure of the rules, just bring along the appropriate strategy cards with you. No matter what the rules are when you sit down and play, you'll have the right strategy card handy to make all the right plays.





http://www.rgtonline.com/article/doubling-11-against-an-ace-101815?CategoryName=Gaming Strategies
 

J-Man Rx NFL Pick 4 Champion for 2005
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They have NO blackjack you have 11.. is it always right to doubledown?

does it matter if your playing a 6deck shoe or a single deck game on whether to do this or not?
Yes ! It is better to double down if the dealer has a
Ace then if He has a face card showing. Why ? If He has a Ace, We already know He doesn't have a 10 value Card or He would have already showed his hand with a Blackjack. If He has a 10 value card showing, We know nothing except that He doesn't have an Ace in the hole as once again after asking for Insurance, He must show his Blackjack. Doubling down with an 11 against dealers Ace is a no brainer !
 

RX Senior
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Depends on how many ten's are out. Do you get the feeling you will pull a ten?

I will say this : Dealer hardly ever seems to bust with A
 

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For those of you who rely on superstitions, instincts, and gut calls - play this way and I can guarantee you will LOSE less money over the long run..note that you will NOT WIN money this way over the long run. BTW this is for multiple deck games (4 or more) and it plainly says to hit vs a dealer A.

View attachment 11279

That strategy card looks more like an advice for games, where the dealer stands on soft 17. Those games are almost extinct nowadays.
Not many changes in basic strategy for games, where the dealer is allowed to hit soft 17, but doubling down on your 11 vs a dealers ace is in fact one of the few changes.

That might obv. change depending on you counting cards and the count at that particular moment.
 

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I also want to add this : Basic strategy is just that; BASIC!

Got to switch it up depending on how the cards are coming out.
 

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Yes ! It is better to double down if the dealer has a
Ace then if He has a face card showing. Why ? If He has a Ace, We already know He doesn't have a 10 value Card or He would have already showed his hand with a Blackjack. If He has a 10 value card showing, We know nothing except that He doesn't have an Ace in the hole as once again after asking for Insurance, He must show his Blackjack. Doubling down with an 11 against dealers Ace is a no brainer !


sharp advice from a sharp poster
 

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I've seen those cards that will tell you to double down on any 11 vs anything.
 

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Yes ! It is better to double down if the dealer has a
Ace then if He has a face card showing. Why ? If He has a Ace, We already know He doesn't have a 10 value Card or He would have already showed his hand with a Blackjack. If He has a 10 value card showing, We know nothing except that He doesn't have an Ace in the hole as once again after asking for Insurance, He must show his Blackjack. Doubling down with an 11 against dealers Ace is a no brainer !

Exactly right, and never take insurance ever, even if you have Black Jack. That's one that I see a lot of squares doing. The best advice would be to just not play BJ unless you count, other wise there's no edge in it ever. And even if you can count the your edge is very small.
 

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Sometimes you do. It's complicated but basically it comes down to how many beers you have had.
 
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I also want to add this : Basic strategy is just that; BASIC!

Got to switch it up depending on how the cards are coming out.

No, actually "basic" strategy is a misnomer. As a concept, it is the
"optimal" strategy given that you are not counting cards.

And, if you are "mixing it up" without counting cards, then you are
giving up EV, and probably are getting less return than a "basic"
strategy player.
 

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