Buy the Five and Nine

At Harrahs Cherokee, you can buy the 5/9 and pay the vig after it hits. Thus, a buy of the 5/9 for $50 would pay $73 (75-2 vig). What is the house edge for this bet?

Quote: docsjs

At Harrahs Cherokee, you can buy the 5/9 and pay the vig after it hits. Thus, a buy of the 5/9 for $50 would pay $73 (75-2 vig). What is the house edge for this bet?

From Frank Scoblete,

"Now, if you are lucky enough to play in venues that allow you to "buy" the 4 or 10, 5 or 9, and only pay the 5 percent commission on wins, these "buy" bets are actually good ones, bringing the house edge down to around 1 to 1.3 percent."

Really, docsjs, you have been a member here for almost 4 years and you haven't picked up the fact that the Wizard has a companion site that answers all those things very authoritatively?

Clark at least has the excuse he just joined, nonetheless quoting Scoblete on a matter like that on a Wizard site is quite ironic.

Quote: odiousgambit

Really, docsjs, you have been a member here for almost 4 years and you haven't picked up the fact that the Wizard has a companion site that answers all those things very authoritatively?

Clark at least has the excuse he just joined, nonetheless quoting Scoblete on a matter like that on a Wizard site is quite ironic.

The wizard doesn't have those exact numbers handy.
If I remember, the 5/9 buy for $30:$1 is around 1.67% and the 4/10 for $30:1 is 1.33%

Your numbers are for a 3.33% commission. The Wiz has them up for 5% at 2% and 1.67% under Craps/Buy (You can decide whether to accept per roll or per decision).

An interesting little note is that $30 with a $1 vig paid on win only is the break even point for buying the 6/8 vs. placing.

Quote: ClarkWGriswold

The wizard doesn't have those exact numbers handy.

maybe I am just more used to that site, I don't think of it as user-unfriendly so I apologize if others do

https://wizardofodds.com/games/craps/

not quite half the way down the page

Quote: docsjs

At Harrahs Cherokee, you can buy the 5/9 and pay the vig after it hits.

Excellent

Quote: docsjs

Thus, a buy of the 5/9 for $50 would pay $73 (75-2 vig).
What is the house edge for this bet?

1.60% 'per bet' resolved, not 'per roll'
(for 'per roll' - just multiply the 'per bet' by 10/36 or divide by 3.6
10/2250 or 1/225 or 0.44%)

per bet
use the Scarne method
formula is:
short amount / (wager + true odds payoff)

2/125
[2/(50+75)]
or
1/62.5
or
1.60%
EV = 2/125 * $50 = $100/125 or $0.80

$25 Buy5 (casino has 50 cents)
1/62.5
[1/(25+37.5)]
or
1.60%
EV = 1/62.5 * $25 = $25/62.5 or $0.40

$26 Buy5
1/65
[1/(26+39)]
or
1.538% (rounded)
EV = 1/65 * $26 = $26/65 or $0.40

$100 Buy5
5/250 or 1/50
[5/(100+150)]
or
2.0%
EV = 1/50 * $100 = $100/50 or $2.00


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