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Bankroll management - a look up chart to set your bankroll when shifting tournies

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  1. Landsbanki Landsbanki is offline

    Alva
    United Kingdom

    Posts: 18
    Joined: Jan 10

    Jan 24th, 2010 (1/24/2010 5:26am)

    I've developed a bankroll management strategy to allow players to shift between different types of tables. I've done it for pokerstars as that's where I usually play.

    Many players concentrate on one type of tournament and have a pretty good idea what they should maintain their bankroll at when cashing out to avoid going bust. However, players also sometimes like to switch to a different type of table. So I have generated a lookup table which will allow you to set your new minimum bankroll based upon your old one.

    What you do is look up the Variability score in the table for old and new type of tournament. You then simply divide the new variability score by the old one and then multiply by your old bankroll minimum. I've posted an example and some ideas for adjustments below.

    First here's the look up table.

    Stake Players Variability Score
    5 2 1
    6 2 1.2
    10 2 2
    20 2 4
    30 2 6
    50 2 10
    55 2 11
    3 6 0.99
    6 6 1.98
    12 6 3.95
    23 6 7.57
    35 6 11.52
    36 6 11.85
    46 6 15.14
    55 6 18.10
    3 9 0.93
    5 9 1.56
    6 9 1.87
    10 9 3.11
    15 9 4.67
    20 9 6.22
    25 9 7.78
    30 9 9.33
    35 9 10.89
    50 9 15.56
    55 9 17.11
    3 18 1.26
    5 18 2.10
    6 18 2.52
    10 18 4.20
    12 18 5.03
    15 18 6.29
    20 18 8.39
    25 18 10.49
    30 18 12.59
    35 18 14.68
    50 18 20.98
    55 18 23.07
    3 45 1.68
    5 45 2.81
    6 45 3.37
    10 45 5.63
    12 45 6.73
    20 45 11.25
    25 45 14.07
    35 45 19.69
    50 45 28.13
    55 45 30.95
    3 90 2.14
    5 90 3.56
    6 90 4.28
    10 90 7.13
    20 90 14.25
    25 90 17.82
    30 90 21.38
    35 90 24.95
    50 90 35.64
    55 90 39.20
    2 180 2.11
    4 180 4.23
    10 180 10.57
    20 180 21.14
    33 180 34.89

    Here's an example, lets say you usually play $5 9seaters and when you cash out you leave $200 but you want to switch to $10 90 seaters.

    You look up the variability scores for both 7.13 for $10 90 seaters and 1.56 for $5 5 seaters.

    You divide the score for the type of table you're switching to by the score for the type of table you're switching from. So that would be 7.13/1.56.

    You then multiply this number by your old minimum bankroll. $200.

    So 7.13/1.56 x $200 = $914

    So your new minimum bankroll should be $914.

    There are two additional factors to consider. The table assumes you will maintain the same ROI.

    1) You cannot maintain as high an ROI on Turbos as regulars. So if you are switching from a regular to a turbo you need to adjust for this.

    2) If you move up in buy in you are are likely to reduce you ROI.

    You will need to make an estimate of your anticipated ROI on the new type of table. The basic rule is to multiply the value you get on my chart by the ratio of the old and new ROI. i.e. ROIold/ROInew.

    So in my example if you had an ROI of 20% on the 5$ 9-seaters and you moved to $10 90 seaters with an anticipated ROI of 10% then take the $914 we calculated earlier and multiply it by 20/10 i.e. 2 to get a bankroll of $1828.

    What if you don't know your ideal bankroll for any type of table? I suggest you do an advanced search on sharkscope for the type of table you have played the most. Then plot your graph. Do two things. 1) Calculate the total size of the drop in $ for your biggest downswing. 2) Find the point where your graph is the furthest from your ROI. To do this you can draw a line from the origin to the final point and then see where you chart is furthest below the line. Then measure the distance below the line in $. You have two values in $. Choose the largest number and use that as your minimum bankroll for that type of tournament.

    What are the variability scores in my table? They are the square root of the mean variance after playing an infinite number of tournaments. You need to square root the variance as variance is measured on a quadratic sclae but it's effects on your bankroll will be linear. Square rooting the variance converts the variance from a quadratic to a linear scale.

    This is an entry on my blog
    http://www.sharkscopers.com/blog/lan...oll-management

    I could do a similar table for other pokersites if people are interested.
  2. Faded TV Faded TV is offline

    Spokane, WA
    United States

    Posts: 389
    Joined: Dec 09

    Jan 24th, 2010 (1/24/2010 6:56am) in reply to Landsbanki

    Didn't read the whole thing but just thought I'd mention that square root of variance is standard deviation. So you could just call it that. Just sayin :)
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