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 07-18-2012, 05:08 AM #1 newbie   Join Date: Jul 2012 Posts: 17 Blackjack Question: Straight Jack v Match the Dealer At my local casino, there are a couple blackjack tables that have diffrent bonuses at each one. One is called "straight jack". You place your standard bet, and if you want you can put any bet ranging from \$1 to \$25 on the straight jack bonus. You win if your first two cards are of consecutive rank, a Straight. The order of the cards does not matter — a 3 followed by a 4 or a 4 followed by a 3, both are winners. Every time you hit your hand, if it makes the Straight longer, your payout increases. The other is "match the dealer". This one is pretty self explanatory. If one of your cards matches the dealers up card you win. If they both match, the payout is something sick like 20or50-1. I rarley play blackjack and when i do i dont play the bonuses since they are so -EV. But I have seen people hit some pretty sick stuff and they get huge payouts when they do. So my question is if one were to play the bonuses, which one has a higher EV and higher probablility of hitting?
 07-18-2012, 08:02 AM #2 journeyman     Join Date: May 2003 Location: Welcome to the top of my range Posts: 214 To answer that question we need to know the payouts.
 07-19-2012, 08:40 AM #3 veteran   Join Date: Mar 2009 Location: In the wires Posts: 2,276 Re: Blackjack Question: Straight Jack v Match the Dealer For the straight, the first card doesn't matter and the chance the next card is consecutive is 8/51 or 15.7%. So a fair payout would be 5.375 to 1. Matching the dealer upcard is 3/51 or 5.88% and a fair payout would be 16 to 1. Matching with two cards would be 3/51*2/50 or 0.24% and a fair payout would be about 424 to 1. If you get paid 50 to 1 it's a huge ripoff. To compare them you need to state the exact payouts, as already mentioned.
07-19-2012, 09:30 AM   #4
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Re: Blackjack Question: Straight Jack v Match the Dealer

Quote:
 Originally Posted by NewOldGuy Matching the dealer upcard is 3/51 or 5.88% and a fair payout would be 16 to 1.
He can match either card, so for single deck it would be

1 - (48/51 * 47/50)

=~ 11.53% or 8.7-to-1

But it would change a lot if it's say 8 decks. In that case it would be

1 - (384/415 * 383/414)

=~ 14.4% or 6.95-to-1

07-19-2012, 09:33 AM   #5
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Re: Blackjack Question: Straight Jack v Match the Dealer

Quote:
 Originally Posted by BruceZ He can match either card
? I thought it was only the upcard.

Quote:
 Originally Posted by OpulenTerror If one of your cards matches the dealers up card you win.
Also wouldn't infinite deck (i.e. a shoe without counting) be the same as single deck?

07-19-2012, 10:13 AM   #6
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Re: Blackjack Question: Straight Jack v Match the Dealer

Quote:
 Originally Posted by NewOldGuy ? I thought it was only the upcard.
oops, i see now

07-19-2012, 12:08 PM   #7
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Join Date: Sep 2002
Posts: 8,907
Re: Blackjack Question: Straight Jack v Match the Dealer

Quote:
 Originally Posted by NewOldGuy ? I thought it was only the upcard.
You can match either of your 2 cards.

Quote:
 Also wouldn't infinite deck (i.e. a shoe without counting) be the same as single deck?
Even your probability of the up card matching one particular card, say your first card, will be better the more decks there are. With single deck this probability is 3/51. With infinite decks, it is 1/13.

 08-01-2012, 02:33 AM #8 newbie   Join Date: Jul 2012 Posts: 17 Re: Blackjack Question: Straight Jack v Match the Dealer Sorry for the delay and thanks for the responses. The payouts for the games: Straight jack 2 card straight pays 3-1 3 card straight pays 25-1 4 card straight pays 100-1 5 card straight pays 250-1 Match the dealer 1 non-suited match pays 4-1 2 non-suited matches pays 8-1 1 suited match pays 9-1 1 non-suited and 1 suited match pays 13-1 2 suited matches pays 18-1 And fwiw, this casino uses three decks per shoe.
08-02-2012, 10:12 PM   #9
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Re: Blackjack Question: Straight Jack v Match the Dealer

For straight jack, do we still get paid on bets if we bust?

The answer to this affects the game.

Here is the house edge for Match the Dealer:

ResultCombinationsProbabilityPaysReturn
no match102960.8626728111-1-0.8626728111
1 unsuited match12960.10858818640.434352744
1 suited match2880.02413070890.217176372
2 unsuited match360.003016338580.024130708
1unsuited + 1 suited180.0015081693130.0196062003
2 suited matches18.37871805613741E-005180.0015081693
Total119351 -0.1658986175

House edge: 16.59%

fyi, the same paytable with a 6-deck game, the house edge is lowered to 10.49%.

 08-03-2012, 07:12 PM #10 newbie   Join Date: Jul 2012 Posts: 17 Re: Blackjack Question: Straight Jack v Match the Dealer Yes, we still get paid if we bust. For example: if you are dealt a 8-7 and have \$5 on the SJ, if you hit again and bust you receive \$15. With that said, which game is more +EV?
08-03-2012, 11:58 PM   #11
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Re: Blackjack Question: Straight Jack v Match the Dealer

Quote:
 Originally Posted by OpulenTerror Yes, we still get paid if we bust. For example: if you are dealt a 8-7 and have \$5 on the SJ, if you hit again and bust you receive \$15. With that said, which game is more +EV?
But if you have 8-7 and hit a nine and bust, would you get paid \$125 or just \$15? I'm guessing just \$15, but correct me if I'm wrong.

And unfortunately the math for this is a much bigger pain, and strategy may change based upon the ratio of the side bet to the BJ wager.

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