Deucekies
Deucekies
Joined: Jan 20, 2014
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August 16th, 2020 at 11:26:58 PM permalink
Hi all.

I was under the impression that when an improper bet hits a blackjack for 3:2, the payoff is always rounded down to the nearest 50¢. I recently learned however that a surprising number of jurisdictions round the payout up instead of down.

What is the effect on the house advantage when the payout is rounded up instead of down?

On a $5.50 bet, getting paid $8.50 is a 17/11 payoff, or 1.5454.

On a $25.50 bet, getting paid $38.50 is a 77/51 payoff, or 1.5098. So clearly the returns diminish quickly.
Casinos are not your friends, they want your money. But so does Disneyland. And there is no chance in hell that you will go to Disneyland and come back with more money than you went with. - AxelWolf and Mickeycrimm
ChumpChange
ChumpChange
Joined: Jun 15, 2018
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August 16th, 2020 at 11:36:07 PM permalink
Just bet in multiples of $2.
AlanMendelson
AlanMendelson
Joined: Oct 5, 2011
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August 16th, 2020 at 11:41:48 PM permalink
In craps an improper bet on "odds" is either returned to the player or paid at even money or paid as a place bet. I think each casino makes its own rules on this.
charliepatrick
charliepatrick
Joined: Jun 17, 2011
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August 17th, 2020 at 12:31:53 AM permalink
It's up to the dealer to correct the bet - I've seen people try to play £2.50 chips on BJ (these are sometimes used on £5 tables and I've even seen them as the base bet on 3CP) and before dealing the dealer either changes it and gives 50p change (most BJ tables have 50p) or returns the chip.

Naturally if someone rounds up then it's in your interest to bet 5.50, as the 50c is a positive EV.
racquet
racquet
Joined: Dec 31, 2014
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August 17th, 2020 at 7:46:28 AM permalink
I think I've seen a few "round-down" payouts on a blackjack, and enough arguments about it when it does happen that rounding up is the normal outcome. I've heard dealers say that "2.50 pays 4" on a blackjack, if they can't pay exactly 3.75 which is what a 3:2 payout is on a pink chip.

This only happens on a low-limit table where pink chips come into play often enough, and where low-limit players want every penny they are entitled to.

Although I have seen players go out of their way to confuse and piss off dealers by betting a rainbow of chips on a single bet - $7.50, $18.50, and so on. The extra time required to break down the bet when paying it off, along with the mental math needed by the dealer, is aggravating. Which is the whole point, usually.
billryan
billryan
Joined: Nov 2, 2009
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August 17th, 2020 at 8:05:36 AM permalink
I accidentally " discovered " this years ago and reckoned it was worth about a dollar an hour to the player.
The difference between fiction and reality is that fiction is supposed to make sense.
BedWetterBetter
BedWetterBetter
Joined: Oct 20, 2012
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August 17th, 2020 at 3:39:21 PM permalink
In AC they use to keep actual 25 cent quarters in the dealer's chip rack in the event someone bet a $2.50 chip and got a winning Blackjack. Every casino, except Tropicana, has done away with this and round's up to $4 for the pink chip. I guess the owner's really need to keep those extra quarters to make their bottom line?

It also becomes a nuisance in casinos that offer surrender as they have to round up to $2 when a bet with a $2.50 chip.
AlanMendelson
AlanMendelson
Joined: Oct 5, 2011
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August 17th, 2020 at 6:45:43 PM permalink
Anyone remember $1 blackjack at the old Sahara? Did they have fifty cent chips?

I played the $1 game a little bit, but never got a blackjack.
BedWetterBetter
BedWetterBetter
Joined: Oct 20, 2012
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August 17th, 2020 at 7:12:29 PM permalink
At Bally's AC, they had plenty of quarters to collect their 25 cent Hand fee!

However, most of the time they give you a $2.50 chip and put the $1 chip back in the rack, hence you make $1.50. Makes things easier that way if someone puts a dollar toke for the dealer on the hand and it hits BJ.
Ace2
Ace2
Joined: Oct 2, 2017
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August 17th, 2020 at 8:41:31 PM permalink
Quote: billryan

I accidentally " discovered " this years ago and reckoned it was worth about a dollar an hour to the player.

Sounds about right.

Assume 60 hands per hour and 3 blackjacks per hour. Even at a full 50c roundup thatís a whopping $1.50 per hour.
Itís all about making that GTA

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