double up and cashback

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It is also interesting to note that in land casinos cash back does not apply to double-up bets but at Playtech Internet casinos you get 0.1% cash on all bets, including the double-up.

so, if we get cashback for double up, than double up is +ev game, but how to count an average he for 1, 2, 3 and etc double up?

"probability for each combination" * 0.5 Is it correct for 1 double up?
"probability for each combination" * 0.5 * 0.5 Is it correct for 2 double up?

how much double ups need for breakeven point on standard JoB? how it change if we have 0.125 cashback?

Quote: turbostat

so, if we get cashback for double up, than double up is +ev game, but how to count an average he for 1, 2, 3 and etc double up?

"probability for each combination" * 0.5 Is it correct for 1 double up?
"probability for each combination" * 0.5 * 0.5 Is it correct for 2 double up?

how much double ups need for breakeven point on standard JoB? how it change if we have 0.125 cashback?

probably never at a Playtech casino. You will be back in 1 months complaining its rigged. Save yourself the time and problems

I played on playtech. I trust him.

Quote: turbostat

I played on playtech. I trust him.

Tell me that after a few months of solid play

OP, you're still going to lose and the double up won't stop it or affect the house edge.

they give points for playing on megajacks (standard 9/6 VoP jackpot). so, the breakeven for megajacks is x976 for RF. you do not need to wait x976 with cashback for double up. I want to know, what is the jackpot size will be for a breakeven point?

Break even point: Either wait until you find the leprechan's pot of fool's pot of gold or listen to the advice of axelwolf and don't get involved.

will it not be +ev even with unlimited double up option?

A fair game of 9/6 Jacks or Better played perfectly with 0.001 cashback on every wager including 50/50 double-ups will yield 100.04208% if there are 4 double-ups on every win. So, +EV is possible if you believe all the assumptions. Of course, the variance will have been multiplied by close to 17; so Risk of Ruin will require quite a bankroll plus a lot of time (not to mention fair "flips" for royal payoffs). Rhetorical question: Willing to double up 4 times on each royal where 15 of 16 times you will bust down to zero + cashback? Good luck.

If you are willing to double up the same number of times (n) on each win, the formula for EV with cashback seems to reduce down to (1 + cashback % * n) x Regular Perfect Play EV + cashback %. A general formula for the variance seems a bit more complicated.

Couldn't you just opt out of doubling up on any high variance play (4oaks or higher)? It doesn't hurt you, just means you aren't getting as much cash back.

Quote: RS

Couldn't you just opt out of doubling up on any high variance play (4oaks or higher)? It doesn't hurt you, just means you aren't getting as much cash back.

Of course your question is rhetorical in that you can do anything that you want. Yes, this gets you lower variance, but when you work out the math there are some logical inconsistencies. The variance is now only a little more than 3 times as large (63.25). There is some hurt to the EV if you follow the scenario above. First the edge moves from the tiny 0.0421% to an even more miniscule 0.008%. And if you are not going to double up a 125 coin win on quads, you probably wouldn't want the 3rd double on a full house, which bets 180 to try for 360 coins, much less try for the 4th double. And if you are not going to do that, your edge fully evaporates. Even the 4th double up on trips risks 120 coins to get 240. A 5th double up on Two Pairs or a 6th double up on a high pair puts you in the same situation.

Certainly there are innumerable options, but to get to (and beyond) a breakeven EV, you're going to need to risk some serious bet sizes on 50/50 wagers.

thanks drrock2

sorry, but i don't understand your formula

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(1 + cashback % * n) x Regular Perfect Play EV + cashback %

for 4 double up is looks like (1+0.1*4)*(-0.5)+0.1 Where I make a mistake?

EV = (1+0.001*4)*(0.995439043695)+0.001 = 1.000420799870

thanks, I appreciate it.

it's looks good with 0.125% cashback. 1.00042 for 3 double up and 1.00166 for 4 or just 1 double up with x976 RF JP give 1.0025