Bet Calculator Being able to calculate how much a bet returns for any given stake is one of the basics of betting and our Bet Calculator simplifies this process for bettors. A bet can be broken down into two elements; the Stake - how much you risk, and the Payout - your potential return including your Stake. Below are some of the optional side bets you’ll find for the game of blackjack and its many variants. I’ve also included the expected return or house edge whenever possible. If you want something to compare these numbers to, keep in mind that the majority of blackjack-style games carry a house edge from 0.5% to 1%.
dickwilliams
Dear Wizard of Odds,
I am attempting to write my own expected return algorithm, but none of the values I obtained conformed with yours. Here's my algorithm for stand:
It seems like my values are always higher than yours. For example, for 1 deck, dealer hits on soft 17, your value for dealer A and player A, 2 is -0.589084 while mine is -0.723261. For 6 decks of same hands, your value is -0.597220 while mine is -0.722356.
If you can let me know which part of my algorithm is faulty it would be greatly appreciated. Thanks!
I am attempting to write my own expected return algorithm, but none of the values I obtained conformed with yours. Here's my algorithm for stand:
It seems like my values are always higher than yours. For example, for 1 deck, dealer hits on soft 17, your value for dealer A and player A, 2 is -0.589084 while mine is -0.723261. For 6 decks of same hands, your value is -0.597220 while mine is -0.722356.
If you can let me know which part of my algorithm is faulty it would be greatly appreciated. Thanks!
pacomartin
Dear Wizard of Odds,
If you can let me know which part of my algorithm is faulty it would be greatly appreciated. Thanks!
If you can let me know which part of my algorithm is faulty it would be greatly appreciated. Thanks!
The Wizard has categorically stated he will not comment on algorithms, since he receives too many of them and they are time consuming.
If it helps, I put the partial results of a test run where I got the exact same results as in appendix 9.
I did the case of a dealer 10 against a player 10,9 for a single deck game. The EV is 0.102517 if the player chooses to stand. There is only one extra line of calculation if there is more than a single deck.
The entire table did not fit in the forum, so I just put part of it so you can see intermediate results. If you add some print lines to your code, you should see if you are getting the same intermediate results.
I can see that your code is not correct. You need a table to keep track of how many remaining cards there are of each type.
expected return of simple play where dealer stands .
If I may suggest that you download the table that I did into a spreadsheet, put in formulas, and see if you can fill out the missing lines in a spreadsheet, then you will have something to check against your code.
It's my understanding that the calculation of split case can be very difficult.
dickwilliams
Hi,
Thanks for your reply. I in fact did have a table which keeps track of all remaining cards, which is the 'deck' variable passed in. Thanks for your link, I think I've found my problem!
Thanks for your reply. I in fact did have a table which keeps track of all remaining cards, which is the 'deck' variable passed in. Thanks for your link, I think I've found my problem!
pacomartin
Tell me if you get the correct EV's for the splits.
dickwilliams
Actually I had some problems with your stand table, can you post your excel file?
DorothyGale
Doesn't this lose one unit on a blackjack/blackjack tie? Also you are dealing with the dealer busting before evaluating the dealer's hand (I think ... you have 'dealer bet' and I think you meant 'dealer bust').
Blackjack Payout Calculator
You want:Maybe that was just a typo.
--Dorothy
'Who would have thought a good little girl like you could destroy my beautiful wickedness!'
miplet
Also, the Wizards return in BJ Appendix 9 are after the dealer has checked for blackjack.
dickwilliams
O.K. so I realized that dealer blackjack is not part of the calculation, and thus my expected values were off by exactly the probability of getting a dealer blackjack. (If the dealer were not to peek for blackjack and let you do all the fancy stuff before declaring blackjack).
Blackjack Expected Return Calculator Estimate
dickwilliams
Expected Return Calculator | Probability Rate Of Return ...
Also, the Wizards return in BJ Appendix 9 are after the dealer has checked for blackjack.
Blackjack Main Page.
Yes I just realized that, so evil. In Vancouver (where I play), the dealer does not check for blackjack and thus I never realized that is not how the rest of the world works.Blackjack Results Calculator
Last evening, I went to a casino that's new to me, about 90 minutes' drive away. Enjoyed the time, signed up for their player's club and got a free meal, played some BJ and got a reasonable profit for the time I allotted to it. Chatted a lot with the dealer and one of the PBs, tipped a bit. Friendly, and nice because of it. Got to thinking about the bigger picture on the drive home.
I find I'm curious about the practical expectations of serious players. Up to this point, I've been using BJ as a way to make alternately some bill-paying money or a bit of fun money, and I've been at it for enough months now and have proven to myself that I have genuine understanding, so I'm wondering: Where do those who play BJ regularly/seriously/pick-an-adverb expect to find themselves in terms of rate of return?
I realize that some aren't willing to discuss numbers, either from a general sense of privacy or a concern for not making the extent of their profitability known. But it seems a reasonable guess (if only that) that some people would be willing to tell the more recently-involved among us what you really expect.
Would anyone care to offer straight-up numbers? How big a bank do you operate? How long did it take to build that bank? How much of it do you put into play on any given day (or weekend or week-long trip or ...)? I'm curious about both the serious amateur and the genuine professional; I'm debating with myself about where I should go with what I've learned to do. I've seen bankroll calculators on a couple BJ websites and, to be frank, some of the assumptions they've got look downright peculiar to me.
I find I'm curious about the practical expectations of serious players. Up to this point, I've been using BJ as a way to make alternately some bill-paying money or a bit of fun money, and I've been at it for enough months now and have proven to myself that I have genuine understanding, so I'm wondering: Where do those who play BJ regularly/seriously/pick-an-adverb expect to find themselves in terms of rate of return?
I realize that some aren't willing to discuss numbers, either from a general sense of privacy or a concern for not making the extent of their profitability known. But it seems a reasonable guess (if only that) that some people would be willing to tell the more recently-involved among us what you really expect.
Would anyone care to offer straight-up numbers? How big a bank do you operate? How long did it take to build that bank? How much of it do you put into play on any given day (or weekend or week-long trip or ...)? I'm curious about both the serious amateur and the genuine professional; I'm debating with myself about where I should go with what I've learned to do. I've seen bankroll calculators on a couple BJ websites and, to be frank, some of the assumptions they've got look downright peculiar to me.