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swift-tuttle
30 May 11 11:46
Joined:
Date Joined: 22 Mar 04
| Topic/replies: 26,620 | Blogger: swift-tuttle's blog
Hi top2rated,

I know you do systems and I was wondering if you had any thoughts on staking plans for backing, not laying.

I started a bank on 24/02/11 and am following a plan of 0.5% of bank (per selection) at start of day. Once the stake for the day has been calculated, it applies to all selections for that day at BF SP.
The selections come from systems so they are fairly randomly priced and the number per day varies between 2 and 50, although a typical number would be 24.

My daily results are below, I'm in profit but I have the feeling that I'm not realising full potential and the staking plan is the only thing I can change.


24/02/2011        -48.74
25/02/2011        -95.72
26/02/2011        139.38
27/02/2011        -18.75
28/02/2011        57.52
01/03/2011        -38.97
02/03/2011        -16.95
03/03/2011        134.56
04/03/2011        33.98
05/03/2011        22.31
06/03/2011        13.74
07/03/2011        -11.19
08/03/2011        -26.79
09/03/2011        -36.67
10/03/2011        -39.24
11/03/2011        3.40
12/03/2011        138.90
13/03/2011        -14.10
14/03/2011        -34.90
15/03/2011        9.30
16/03/2011        -51.78
17/03/2011        -104.33
18/03/2011        -52.64
19/03/2011        -50.90
20/03/2011        226.06
21/03/2011        -15.96
22/03/2011        -38.79
23/03/2011        -31.86
24/03/2011        -30.17
25/03/2011        6.59
26/03/2011        -85.12
27/03/2011        -18.00
28/03/2011        -17.95
29/03/2011        -42.00
30/03/2011        110.22
31/03/2011        -13.95
01/04/2011        -69.89
02/04/2011        234.66
03/04/2011        -82.52
04/04/2011        255.75
05/04/2011        -2.73
06/04/2011        19.90
07/04/2011        -181.92
08/04/2011        222.01
09/04/2011        -137.56
10/04/2011        12.02
11/04/2011        -57.02
12/04/2011        35.74
13/04/2011        11.17
14/04/2011        180.47
15/04/2011        -152.93
16/04/2011        -69.87
17/04/2011        0.26
18/04/2011        2.82
19/04/2011        58.11
20/04/2011        25.27
21/04/2011        -37.58
22/04/2011        0.00
23/04/2011        49.68
24/04/2011        138.25
25/04/2011        -33.64
26/04/2011        103.14
27/04/2011        388.12
28/04/2011        184.91
29/04/2011        144.70
30/04/2011        54.75
01/05/2011        195.36
02/05/2011        -89.97
03/05/2011        30.20
04/05/2011        340.08
05/05/2011        -93.55
06/05/2011        -236.04
07/05/2011        -261.02
08/05/2011        482.30
09/05/2011        220.37
10/05/2011        -48.28
11/05/2011        -168.25
12/05/2011        -230.89
13/05/2011        -229.87
14/05/2011        -76.70
15/05/2011        510.32
16/05/2011        87.96
17/05/2011        -129.77
18/05/2011        -116.73
19/05/2011        -268.51
20/05/2011        102.06
21/05/2011        180.64
22/05/2011        -66.40
23/05/2011        9.44
24/05/2011        -124.95
25/05/2011        -149.03
26/05/2011        -114.80
27/05/2011        -92.73
28/05/2011        64.58
29/05/2011        380.02


Initial Bank    1200.00
Bank Now        2562.40
                       
Win Stake    12.81 (for today's selections)   



cheers
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Report DaveEdwards May 30, 2011 12:41 PM BST
Great work. Are you sure that altering your staking is the way forward?

With a bank doubled in 3 months there is no need to tinker I think. Your call of course, but I think the issue of backing on systems is that you'll always be relying on the fact that trainers are trying to win that day which may not always be the case. You are then into the realms of luck as to whether or not you time your larger stakes on the occasions when the horses win. Good luck though.
Report swift-tuttle May 30, 2011 1:19 PM BST
thanks for your views Dave.

the default position is to stick with what I've got, there is just a nagging feeling that I may be missing out on something else which is a bit more sophisticated.

I know that the purists say that level stakes is the true test and anything else is artificial but I don't know whether that can be mathematically proved.
Report top2rated May 30, 2011 8:56 PM BST
swift-tuttle

I think he pattern of results you'll experience with any system or any combination of systems will be entirely random.  Consequently, to adjust your stake in reaction to a sequence of winners or losers would not be advisable in my humble opinion.

To be honest the only staking plan I'd consider would be a variable staking plan - backing each selection to return 1pt at the odds taken, e.g. stake 0.5pt @ 3.00, stake 0.1 pt @ 11.00 etc, etc. 

In fact, if you've got a record of your selections in a spreadsheet now might be a good time to check out their performance using the variable staking plan in order to see if your figures have been skewed by fluke long priced winners.  If you need any help with this, give me a shout.

Impressive bottom line to date by the way. Grin
Report Rs1 May 30, 2011 9:20 PM BST
youve won 20 percent of you bank in one go an just under 20 percent as well


thats way too much fluctating


try to control that ... when you can then higher your stakes
Report swift-tuttle May 30, 2011 10:00 PM BST
thanks for your contribution top2rated, it's very much appreciated. I'll mull over what you have said and try to hone my spreadsheet skills to do what you suggest. I'd like to have a bash at that to see if I could come up with the correct formula.

Rs1 - It just seems to be the nature of it. The totals you are seeing are for a day's betting, I do seem to get a clutch of winners (and losers) which results in these spikes either side of the graph.
The only way I could try to control that is to think of another filter and that is very dangerous ground I think.
Report Rs1 May 30, 2011 10:02 PM BST
05/05/2011        -93.55
06/05/2011        -236.04
07/05/2011        -261.02

you cant been on 2500 when you did that ... you lost actually at least 35 percent of your bank

it can happen again an that would have nearly cleaned you out ... strange things unfortunately do happen

like i said try to control ..lower your stakes so your not losing too much

you wouldnt want to get to a year then go bust ... as i can see it with your figures

once you got in check raise ... i would seriously look into lowering your stakes for now ..

upto you ...but i wouldnt someone to waste  a year to realise they have nothing
Report Rs1 May 30, 2011 10:23 PM BST
i dont know what you do or how you do it , but in space of  a few months you managed to lose a large chunk of your bank ... wil happen again an in  a row .. that will be big trouble

if you carry on with this id put money on you wont have anything by the  end of the year

but thats not want you want to hear ... youll think u got something great an want to raise  meaning even bigger fluctations ... will be hit by a major prob
Report swift-tuttle May 30, 2011 10:37 PM BST
I hear what you are saying Rs1 - but how do you know which way it is going to go?

you suggest lower your stakes, as I explained I was using 0.5% of 'start of day' bank balance for each of the day's selections.

If I lowered the % then , yes I would lose less on losing days but on winning days ......
Report Rs1 May 30, 2011 11:24 PM BST
the way to success here are you money management an strategy ... discipline etc comes under these

i dont know your strategy but your money management seems wrong as your fluctuating too much

im just giving u some friendly advice ... not taking the piss

you have  a small bank ... yet your winning an losing big percentages

if your strategy is sound ... you will never know if it works as your betting too large

you need to bet less an not worry about winning in the shortwhile

like i said its not what u want to hear an  think your gonna go larger

you had a clutch of losing days ..three or so

what when you get 5 or 6 together ... that will wipe u out ... an i guarantee it will happen from the numbers you put up
Report top2rated May 31, 2011 4:28 AM BST
swift-tuttle

Alternatively, you could use a 'skimming the bank' approach.

This would mean reverting to your 1200 bank and capping the total daily stakes at say 10% of the bank.  Then when any day's activities result in say a 5% or greater increase of the bank cream off that profit and revert to the 1200 bank.

On the subject of spreadsheets and variable staking I did run a system on another forum earlier this year and posted the final results on Google Accounts. 

Here's the link to the summary of results from 26 January to 26 March 2011.

https://spreadsheets.google.com/ccc?key=0AjriKHhwpRQQdHRVb0ZoMkhTWGdpeGZnSXJEc3loS1E&hl=en&authkey=CNzz8ZQI#gid=0

Columns A - J are self explanatory.

Column K shows the return (after deducting 5% commission) as a result of betting the Advised Stake at Betfair SP. I realise that the Betfair SP would not be known until after the off but I've used it purely to illustrate the Variable Staking plan.

Column L illustrates the Variable Staking plan where the aim is to return £10.00 (£9.50 after commission) based on the Betfair SP.

Column M is the Variable Staking plan return i.e. £9.50 for a winner.

Column N is the accumulative number of winners, and Column O the accumulative Strike Rate of the selections.

NB - Please note that there were no qualifiers during the period 07 - 11 February inclusive.

The spreadsheet can be downloaded for further use by clicking on 'File' and then clicking on 'Download'.

If you'd rather not download it you can see the formulas I've used for variable staking by clicking on a cell and looking at the formula bar.

I'm off to work soon and won't be on here again until late afternoon so if you have any queries I'll get back to you as soon as I can.

All the best.
Report swift-tuttle May 31, 2011 9:38 AM BST
thanks top2r
Report Martinch May 31, 2011 12:07 PM BST
ok,  question not aimed at me... but I had a look at the numbers so may as well let you know what I found...

In this sample I think you *seem* to be running at about 0.6 of Kelly Criterion staking (inferred from the daily returns)...
If you had used Kelly with perfect foresight you would have £3192 as current bank (47% more return but placing bets 62.5% bigger)...
Personally, I see this as not much upside for a lot of extra risk so would suggest you do NOT increase your staking.
If I was you I might:
1 - take the risk down slightly... maybe to 0.4 or 0.5 Kelly
2 - evaluate the bank more often (as opposed to once per day).  This would limit downside risk and increase upside (on a bad day you scale size down, on a good day you scale up)

Decent performance so far... good luck
Report swift-tuttle May 31, 2011 12:39 PM BST
thanks^

sounds like good advice

it wouldn't take much extra effort to evaluate the bank halfway through the day especially with night racing
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