WAGC points system

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Contents

Introduction

SAGA uses a points system to choose its representative to the World Amateur Go Championships (WAGC) in Japan each year. Players accumulate points balances according to their tournament performances, participation and membership. The player who ends a calender year with the most points becomes the representative for the next calender year's WAGC.

Calculations

This section describes the calculations done over a particular calender year. "Member" will refer to someone who has paid SAGA membership fees for the current calender year, while "player" will refer to someone who has a points balance but has not necessarily paid fees for the current calender year.

Opening balance

Players carry over their points balance from the previous calender year. New members (i.e. those who paid fees for the first time during the current calender year) start with a balance of 0.

Annual depreciation

All opening balances are reduced by 20%.

Steve: Does this apply to negative balances as well?

Representative's depreciation

Formula from 2010: The points balance of the player representing South Africa at the current calender year's WAGC is reduced by:

min[1000(n+(2p/100)-(T-P)/(T-1)),8000]

where

n is the number of times the player has represented South Africa (including the current calender year).

P is the player's final position at the WAGC.

T is the total number of participants at the WAGC.

p is a factor representing the portion of the total cost being covered by sponsors (p=100 representing all costs covered, and p=0 representing no costs covered).

The value of p is, of course, subjective, and is to be set by the council – this task will usually be handled by the member with the tournament portfolio. When players are contacted about possible participation, the council will endeavour to provide as much information as they reasonably can on the value of p.

(The change to the formula was voted in under agenda item 709 at the SAGA Council meeting of 17/1/2010).

Formula until end of 2009: The points balance of the player representing South Africa at the current calender year's WAGC is reduced by:

min[1000(n+2)-1000(t-p)/(t-1),8000]

where

n is the number of times the player has represented South Africa (including the current calender year).

p is the player's final position at the WAGC.

t is the total number of participants at the WAGC.

Steve: Historical note: until the end of 1998, a flat deduction of 3000 points was applied before the annual depreciation. From 1999, the modified formula was applied, but only after the annual depreciation.

Membership points

Each member receives 100 points.

SA Championship points

Members who participate in the SA Championship receive the following points according to their final position:

1st 1900, 2nd 1600, 3rd 1300, 4th 1100, 5th 900, 6th 700, 7th 600, 8th 500, 9th 400, 10th 300, 11th 200, 12th 150, 13th - 16th 100

Members who did not qualify for the SA Championship but participated in one the qualifying tournaments or in the SA Open receive 50 points (note that some qualifying tournaments may have taken place in the previous calender year).

Internet Championship points

Members who participate in any of the 4 Internet Championship tournaments provisionally receive the following points according to their final position:

1st 500, 2nd 420, 3rd 340, 4th 290, 5th 235, 6th 185, 7th 160, 8th 130, 9th 105, 10th 80, 11th 55, 12th 40, 13th - 16th 25, 17th - last 15

Their final allocation is the sum of their two highest provisional allocations.

Participation points

Members receive the following points for games logged on the ranking system:

40 for each tournament game (irrespective of whether the opponent is a member or not).

20 for each club game (irrespective of whether the opponent is a member or not).

20 for each internet game (irrespective of whether the opponent is a member or not).

A maximum of 200 participation points may be earned against a particular opponent, and a maximum of 1000 participation points may be earned in total.

Other rules

Membership applies to the whole calender year, i.e. a member is entitled to points for events and games that took place during the current calender year but before the actual payment of fees.

Points for tied positions in tournaments are shared, e.g. if there is a tie for 2nd to 4th in an Internet Championship tournament each of the tied players receives

(420 + 340 + 290) / 3 = 350

Players who are not eligible to represent South Africa at the WAGC (e.g. by not being a South African citizen) may nevertheless earn points, which they would be able to use when they become eligible at some point in the future.

A representative who manages to achieve 1st place at the WAGC has the right to defend the title the next year, subject to the usual representative's depreciation.

Steve: Something else not made clear here, is when people are dropped from the list. In the past, players who had not been SAGA members for a number of years were removed from the list, and if they later rejoined SAGA, it seems they must start collecting SAGA points again. Is this really the case, or were their points still calculated, but just not released?

History

Changes for 2006:

Reduction in weight of participation points

Introduction of Internet Championship points

Points for tied positions in SA Championship to be shared

Representative's depreciation capped at 8000

A representative who manages to achieve 1st place at the WAGC has the right to defend the title the next year

Players not eligible to represent South Africa at the WAGC may nevertheless earn points

Adjustments to the calculation of Internet Championship points

Participation points for internet games to be the treated the same as club games (it used to be "10 for each internet game against another member")

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