## Odds Of Winning Video Blackjack

Odds are everywhere you look. Seriously. Odds are in a casino, your workplace, your day-to-day live and habits, your marriage and where in the world you live.

Don’t believe me? Take a look for yourself:

- Odds of having twins (21st century) – 3 in 100 or 3%
- Odds of getting a divorce – 40 to 50%
- Odds of being stuck by lightning – 1 in 5,000 or 1 in 700,000 in any given year
- Odds of being audited by the IRS – .4% if you make less than $200,000 / year
- Odds of being dealt a blackjack – About 4.83%

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- Steve Bourie, author of the American Casino Guide, interviews Michael 'Wizard of Odds' Shackleford about blackjack. Mike answers some of the most common ques.
- Traditionally, Vegas blackjack games offered 3-2 payouts for blackjacks, when a winning bet of $10 pays $15. Several years ago, however, casinos started offering 6-5 payouts, when a winning $10.

Odds are just the likelihood that something will happen. As a blackjack player you deal with this all the time.

Lets look at a couple real examples to show you what I mean.

Here are the odds of you busting your hand, depending on what you were dealt:

- 21 – 100%
- 20 – 92%
- 19 – 85%
- 18 – 77%
- 17 – 69%
- 16 – 62%
- 15 – 58%
- 14 – 56%
- 13 – 39%
- 12 – 31%
- <11 – 0%

## Odds of Being Dealt Specific Hands

Here are the probabilities for being dealt a specific hand:

- Blackjack – 4.8%
- Standing Hand (17-20) – 30%
- Decision Hand – (1-16) – 38.7%
- No Bust – 26.5%

Here are the odds for the final hands that the dealer will make:

- Natural 21 – 4.82%
- 21 (3+ cards) – 7.36%
- 20 – 17.58%
- 19 – 13.48%
- 18 – 13.81%
- 17 – 14.58%
- 16 – 28.36%

## Dealer vs. Player Odds

Finally, here are the odds of the dealer busting based on their up card:

- 2 – 35.30%
- 3 – 37.56%
- 4 – 40.28%
- 5 – 42.89%
- 6 – 42.08%
- 7 – 25.99%
- 8 – 23.86%
- 9 – 23.34%
- J,Q,K – 21.43%
- A – 11.65%

Of these examples, this is the most useful. Notice what hands the dealer is most likely to bust with. The dealer will most often bust with 4, 5 or 6, followed by 2 and 3.

The odds above are static. There’s nothing you can do to change them. However, you can find ways to improve your odds so that you lose fewer hands and less money. And the less money you lose, the more you can keep to play more blackjack.

Here’s what you can do to improve your odds in blackjack:

**Use basic blackjack strategy**. Without basic strategy you’re playing at an 8% disadvantage. With strategy, however, the odds increase significantly. You’ll be playing at only .5 to 1.5% disadvantage.**Find the best games**. The rules make all the difference. For example, if you play a 6:5 blackjack game you’re adding a 1.39% disadvantage. If the dealer hits soft 17 that’s another .18%. However, it’s possible to find games where the player is paid 3:2 for blackjacks and the dealer stands on soft 17. So find those games. Also be careful about which blackjack variation you play. The best games to play are blackjack, Spanish 21, Vegas Strip BJ and Blackjack Switch.**Avoid side bets**. Side bets look exciting, because for a nominal amount you could possibly win a huge jackpot — worth hundreds or even thousands of dollars. The problem is that the odds against winning can be anywhere from 2-40%.**Avoid wives tales**. There are a lot of bad strategies like never busting (never hit a 12+), mimicking the dealer and assume that the dealer has a 10 in the whole (with ace up). The problem with using any of these strategies is that they increase the house edge from 3 to 10 percent.

You can do other things, too, like count cards or read books (usually a mix of basic strategy, card counting and general how-to’s for casino blackjack). However, you’ll improve your odds at winning at blackjack just by following my suggestions above.

## Understanding the Long Run – Sample Size and Variance

I wanted to finish up this article with a brief explanation of odds, and how they work over the long run. You see, I think a lot of people will see the numbers above and get confused when they don’t match their own stats. In other words, someone might go to the casino play 500 hands of blackjack, and wonder why they didn’t get 24 natural blackjacks, or the other way around, why they got 42.

The thing is, odds and statistics are all about the long run. Long run usually meaning sample size, or the total number of hands (or games) played.

What that means is that over a significant sample size, hundreds of thousands or even millions of hands, the number of times you’ll receive a blackjack is about 4.82%. The more hands you play the truer this will become.

The reason why odds don’t match up in smaller sessions, say over 500 hands, is because of variance. There’s a technical term and definition for variance, but I’ll just give you my version; variance is the ups and downs you experience on your way to the long term (expected) results.

Mike Caro, a poker player and author, puts it this way:

*A measure of the spread of statistical distribution about its mean or centre.*

That means in a short time frame, it’s possible to experience more drastic odds. You might win or lose more than you’re supposed to. It also explains why people can go into a casino, not use basic strategy and win 3x as much as what they walked in with. The cards ran in their favor — they experienced a positive streak of variance.

So that’s the gist of it. So the next time you walk into the casino and have a wild swing one way or another, you know that that’s not normal, and that in the long run you’ll be closer to break-even so long as you stick to basic strategy — the plan with the best odds.

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Blackjack odds are percentage figures which represent your probability of losing or winning a hand. They can also represent the house edge or their profit margins as well. Usually probability odds don't mean much on the short term, but they clearly average out in the long term and this is why the casinos always win over the long term.

We decided to make a few tables and charts of the most common blackjack probability odds for various scenarios and situations found while playing blackjack. The most important odds percentage represents the dealer's edge in the game. This is the long term advantage that they have which will eventually take your money away. Blackjack is actually one of the most popular games in the casino and also has some of the lowest odds of all the casino games, except casino craps of course. Generally their edge ranges from 1% to 15% depending on what variation of blackjack you are playing.

## How to Beat the Casino House Odds

There is one feature that makes blackjack more desirable than any other casino game. There is actually a way to beat the house edge by increasing your odds. In fact, your probability odds in blackjack can be increase to the point where you would actually be making the profit in the long term, essentially turning the casino into a personal ATM. This practice is known as card counting and casinos don't like this because they know they will be losing money.

Before you start card counting, you should learn 'blackjack basic strategy', which is the mathematically correct way to play every move in blackjack to get the best odds. This can lower the house edge to less than 1 percent. When that percentage goes to a negative number such as -1%, then it is you who has the edge over the casino. This is when you complement basic strategy with card counting to get the highest efficiencies.

## Odds vs. Dealer Up Card

The first odds chart shows what kind of advantage the player has vs. the dealer based on what his up card is showing. The first column in the chart is what card the dealer has showing after the cards have been dealt. The second column of the table shows the dealer's probability of going bust based on each card. The last column shows the advantage the player has and the probability of winning based on the basic strategy theory. As you can see, the dealer has about a 43% chance of going bust when he has a 5 showing as an up card. At the same time, the player has about 23% advantage as well. Notice that the player advantage goes negative when the 10 cards and ace start showing up. This means the player is more likely to lose.

Dealer's Up Card | Dealer Odds of Busting | Player Advantage Percentage |
---|---|---|

2 | 35.30% | 9.8% |

3 | 37.56% | 13.4% |

4 | 40.28% | 18.0% |

5 | 42.89% | 23.2% |

6 | 42.08% | 23.9% |

7 | 25.99% | 14.3% |

8 | 23.86% | 5.4% |

9 | 23.34% | -4.3% |

10 | 21.43% | -16.9% |

J | 21.43% | -16.9% |

Q | 21.43% | -16.9% |

K | 21.43% | -16.9% |

A | 11.65% | -16.0% |

## Blackjack odds of Busting While Taking a Hit

This chart shows the probabilities of going bust after taking a hit. Busting means that your card total would go over 21 points and would be a hard total as well. The highest score you can get when being initially dealt two cards is 21 points so you can never go bust. This means if you took a hit on a hard 21, you would have a 100% probablity of going bust, which is common sense. Also, if you have 11 points or less, it is impossible to go over 21 points on the next hit and your odds of going bust would be 0 percent.

Total Hand Value | Probability of Going Bust |
---|---|

21 | 100% |

20 | 92% |

19 | 85% |

18 | 77% |

17 | 69% |

16 | 62% |

15 | 58% |

14 | 56% |

13 | 39% |

12 | 31% |

11 or less | 0% |

## House Advantage with Multiple Number of Decks

The number of 52 card decks in a game of blackjack influences the house edge. In some cases, the odds increase in favor of the casino when more decks are used. The advantage edge can be as much as 1% towards the casino and this is a big number in terms of odds over the long term. As you can see here, a single deck of card gives the lowest edge for the casino and gives the player better odds. Multiple decks such as eight decks increases the house edge almost 18 times more than it would for the single deck!

Number of Decks | House Odds Advantage |
---|---|

Single Deck | 0.04% |

Double Deck | 0.42% |

Four Decks | 0.61% |

Six Decks | 0.67% |

Eight Decks | 0.70% |

## Two Card Frequency Odds

Real king slots. The next odds table deals with the first two cards being dealt or the 2 card frequency odds. Every player is dealt two cards at the beginning of a round of blackjack so this chart tells you the percentage of getting different categories of hands. A natural blackjack is only 4.8%, which essentially is an ace dealt with a ten card straight off the initial deal. Normally the odds are 3 to 2 and you would win $3 for every $2 wagered. It's a small percentage but it's the most desirable hand to get. The lowest hand you can get is two points (two aces). This is part of the decision hands group where players are usually dealt soft hands and can make decisions without going bust. This group is the most common.

The other category is the hard standing hands. These hands are somewhat desirable because of the high scores likely to beat the dealer. These are the second most frequent two card blackjack hands. Finally there is a no bust two card hand. No bust means any two card hand that won't bust on the next hit, such as any soft hand or hard hand that is 11 points or less.

Two Card Combination | Frequency Percentage |
---|---|

Natural 21 Blackjack | 4.8% |

Hard Standing (17 - 20) | 30.0% |

Decision Hands (2-16) | 38.7% |

No Bust | 26.5% |

Total (all two card hands) | 100% |

## Probability Edge for Each Card Removed from Deck

The next table shows how much your odds improve after when certain cards have been dealt and removed from the deck. Certain cards taken out of the deck and increase or decrease your blackjack odds percentage and the house edge.

This is very important for card counting. If you want the absolute perfect odds in card counting, you have to acount for each small change in the odds whenever a card is dealt. As you can see from the table, when small cards are taken out of play, the odds increase in your favor overall. This is a paramount property of card counting. The opposite happens when large cards are dealt. Your odds begin to decrease. When you are counting cards, you will notice your count decreasing when large cards are dealt.

## Odds Of Winning Blackjack At Casino

You can imagine how complicated it would be to be adding these numbers in your head while card counting at the same time. If your mind was a computer, it would be easier to keep track of the percentage. Some people can do this, and this is the way to become a perfect card counter! It is easier to keep track of the odds when playing with a single blackjack deck. For example, when five cards are seen on the table, they offer a 0.67% increase in your advantage. In fact, when a lot of fives are used up, your odds will be much higher than if any of the other low cards were used up, even the six point cards. Also, these effects are cumulative so you always need to keep track of the odds after every card is dealt. This data is actually quite amazing!

Removed Card | Effect on Odds |
---|---|

2 | 0.40% |

3 | 0.43% |

4 | 0.52% |

5 | 0.67% |

6 | 0.45% |

7 | 0.30% |

8 | 0.01% |

9 | -0.15% |

10 | -0.51% |

Jack | -0.51% |

Queen | -0.51% |

King | -0.51% |

Ace | -0.59% |

## Dealer Final Hand Probability Odds

This next table shows the odds of what the dealer's final hand will be. Usually in blackjack, the dealer must hit on 16 and stand on 17. These rules are slightly different for other variations of twenty-one. So generally, the odds of the dealer's final score being 16 are 0% because he must hit. This table will show the probability of the dealer busting or getting a non-bust hand as well as natural blackjacks.

Dealer Final Hand | Probability of Getting Final Hand |
---|---|

Natural Blackjack | 4.82% |

21 (more than 2 cards) | 7.36% |

20 | 17.58% |

19 | 13.48% |

18 | 13.81% |

17 | 14.58% |

Non-Bust (less than 21) | 71.63% |

Bust (more than 21) | 28.37% |

## Blackjack Odds Card

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