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  1. Eric Cabrera is offline
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    #1

    Ranking format for local clubs

    Hi to everyone

    My name is Eric Cabrera, I play for a club in a province in Panama (central america)

    My question is what system do you use to update your local rankings?

    We usually do a lot of events including a monthly ranked tournament.

  2. brokenball is offline
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    #2
    Quote Originally Posted by Eric Cabrera
    Hi to everyone

    My name is Eric Cabrera, I play for a club in a province in Panama (central america)

    My question is what system do you use to update your local rankings?

    We usually do a lot of events including a monthly ranked tournament.

    If you don't have a ratings system already then I would use ratings central.
    https://www.ratingscentral.com/
    https://www.ratingscentral.com/HowItWorks.php

    Just make sure you implement it right. When Greg Lets had a forum on about.com I had a conversation about how to implement a ratings system. I had an engineering way and David Marcus had a probability and statistical way that was pretty complex but accurate. The software for the system removes the complex math.

    BTW, years ago David Marcus took so much shit on the mytt forum that I haven't seen him on a forum since.
    It was a case of
    ".Condemnant quo non intellegunt"
    There is a lot of that on TT forums.




  3. SFF_lib is offline
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    #3
    Quote Originally Posted by Eric Cabrera
    Hi to everyone

    My name is Eric Cabrera, I play for a club in a province in Panama (central america)

    My question is what system do you use to update your local rankings?

    We usually do a lot of events including a monthly ranked tournament.

    6 points if winning 3-0
    5 points if winning 3-1
    4 points if winning 3-2
    2 points if losing 2-3
    1 point if losing 1-3
    0 point if losing 0-3

    We play 3 singles and 2 doubles each evening.

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    #4
    Thank you both for the answers, one player from our club designed a ranking system using microsoft excels and a complex formula but he doesnt have time to do it anymore, so thats why we are looking for ideas to make our local rankings work

  5. brokenball is offline
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    #5
    Quote Originally Posted by Eric Cabrera
    Thank you both for the answers, one player from our club designed a ranking system using microsoft excels and a complex formula but he doesnt have time to do it anymore, so thats why we are looking for ideas to make our local rankings work
    The simplest system is the pyramid system.
    There is one person at the top, two people at the next level down. 3 people at the level below that etc. A low player can challenge anyone one level above or at the same level to the left. There is no reason to challenge people below you. There is no math involved.
    If the lower player wins there there 3 ways to handle this.
    1 . Simply exchange places.
    2. The weak player takes the higher players place and the higher player and others below him shift down.
    3. The stronger player takes the weaker player's place and everyone shifts up.
    Option 1 is the easiest.
    Option 2 is good because if people don't play then they may find they are gradually shifted down.
    A person at the top shouldn't be able to stay at the top by not being there to accept challenges.

  6. Eric Cabrera is offline
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    #6
    Quote Originally Posted by brokenball
    The simplest system is the pyramid system.
    There is one person at the top, two people at the next level down. 3 people at the level below that etc. A low player can challenge anyone one level above or at the same level to the left. There is no reason to challenge people below you. There is no math involved.
    If the lower player wins there there 3 ways to handle this.
    1 . Simply exchange places.
    2. The weak player takes the higher players place and the higher player and others below him shift down.
    3. The stronger player takes the weaker player's place and everyone shifts up.
    Option 1 is the easiest.
    Option 2 is good because if people don't play then they may find they are gradually shifted down.
    A person at the top shouldn't be able to stay at the top by not being there to accept challenges.

    Thank you for answering my post, I suppose you are talking about free matches, I am talking about tournaments (group phase and then elimination rounds through the finals) and then elaborating a local ranking system based on tournament results.

    For example what kind of method do you use in your local table tennis club to rank players?


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    #7
    Quote Originally Posted by Eric Cabrera

    Thank you for answering my post, I suppose you are talking about free matches, I am talking about tournaments (group phase and then elimination rounds through the finals) and then elaborating a local ranking system based on tournament results.

    For example what kind of method do you use in your local table tennis club to rank players?

    I posted above. We use Rating Central locally for league nights. Many countries use Rating Central as their ratings system. Did you even bother to check the links? Ratings Central use statistics and probabilities. It is accurate. It doesn't have any fudge factors like the USATT system has.

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