Roulette How to calculate your advantage

Hope all member here in good health.

I want to ask something how to calculate if you assume have advantage from your sampling.

I try to bet 20 number every spin. From my sample from bet 20 number still have positive result even flat bet.

From my testing from result live dealer casino i write in excel.

My final result :
- Plus 228 unit. Already include when zero come out 18 times (minus 360 unit because 18 times zero come out). (European wheel).

From the math i try. In theory i must have result Minus 312 unit because 20/37 X 570 = 308 win

308 win x 16 unit = plus 4928 unit
262 loss x 20 unit = minus 5240 unit.

But i got result Plus 228 unit.

The difference is 540 unit from minus 312 unit to Plus 228 unit.

Hope can give your opinion with the math. Thanks

 

That's a lot of number to bet every spin bud

 

Bayes (old .cc and Betselection member) used to have a programme for Z score whereby you inputted - by spin- the amount of numbers bet and then you inputted a WIN or a LOSS and it would calculate a running total if you had an advantage or not. I had it but can no longer find it. Dunno if anyone else has it still to share?
As Gary says… that’s a lot of numbers though.

 

@GaryG, @Spider curious to know what you guys consider too much numbers or the right amount would be the sweet spot.
For me, 20 numbers should be the max. It still could net profit (16)units. IMO anything that net profits (10)units is still a W to me.
Just wondering your thoughts on the subject

 

Guys, Ordinary_people is not asking for opinions on how many numbers are too much or too little. He's asking what's wrong with the maths.


570 bets x 20 units spent = -11400

308 wins x 36 units returned = +11088

11088-11400 = -312

..if you're not getting this then something else is wrong. You say you 'try' to bet 20 numbers each spin, maybe sometimes you didn't get the whole 20 numbers down and still won?

There always has and always will be debate about how many single numbers to bet. Personally, if betting straight ups I'm obliged to bet from 15 to 19 numbers.. works for me just fine.

 

Props to @Bombus for steering the conversation back on track and answering OP’s question while answering my question at the same time. Spoken like a true gentlemen.

To answer OP’s original question, yes I agree with bombus’ answer, and also maybe on rare occasions, dealer error during payout perhaps? I mean that’s a lot of errors and dealer should be fired

 

That's a lot of numbers ... if you play SU.

 

No. Nothing wrong with the calculate i wrote.

Because i do it in excel from my sample i play with live dealer. When in win. I got 16 unit.

When i lose. I lose 20 unit.

What i ask from the math perspective.

If i bet 570 times. I must minus 312 unit.

But from the result i calculate. I still plus 228 unit

So from the math i must just have 308 win BUT in fact i win more than 308 win bet.

What i mean is the bet selection not useless.

I dont know what if calculate for let say 10k bet if i can still have positive result flat bet.

But for me what i wrote here is interesting for me.

I know i am not the first person to post the similiar topic in here.

Turbo, Luckyfella, or someone else say the same point like i do. The bet selecetion is not meaningless

 

I dont think so. 20 numbers every spin just slightly more than even chance (18 number)

 

What mean play SU ? Sorry if i dont understand

 

SU means straight up. Or inside numbers.

 

The very best way to play EC is with 18 straight up numbers, so no argument from me.