[tournament-org] Using groups vs changing clubs

[Matt Marsh]

Note that whatever the settings of club and/or groups, there are
still at least two criteria that will likely have higher priority
than these settings:
 1. avoiding players being matched together in multiple rounds
 2.  matching based on McMahon score
I would have thought that given the (relatively small) size of our
tournaments there will probably not be many times when the further
criteria of club and group are actually used to influence the draw are
they? I would have thought that in most tournaments there are not many
people on the same McMahon score for example.
It would be interesting if GoDraw was to collect statistics on how often
these criteria do get used in practise...
Matt


On Thu, 25 Oct 2018, at 15:51, Gerry Gavigan via tournament-org wrote:
> I think it sounds eminently sensible. Having "London" as a group
> avoids travelling to Edinburgh only to play someone one meets
> regularly.  That also happened.>> On 24 October 2018 at 16:45 Christopher Kirkham via tournament-org
>> <tournament-org at lists.britgo.org> wrote:>> 
>>> It appears that we are not very interested in discussing the problem
>>> Geoff raised about using groups.  So here is a real situation in a
>>> related area.>>> 
>>> Player A lives in a city with a very small club, SC, but is
>>> sufficiently keen to regularly visit an adjacent club, LC, which is
>>> full of suitably strong opponents who he regularly plays, both at
>>> the club and on-line.  So when LC holds a tournament, A enters but
>>> asks to play as a member of LC, instead of SC. Should the tournament
>>> director allow this - ideally remembering to reset A's club to SC
>>> for the results? Or should he use groups to achieve the desired
>>> effect?>>> 
>>> To use groups, the first way which springs to mind is to put all
>>> relevant LC players together with A into a group, with the attribute
>>> "prefer not". (Clearly "must not" would be too extreme.) The
>>> question here is whether this has the same effect? If "prefer not"
>>> is taken just as seriously as "member of the same club" this
>>> presumably would not affect the draw - but is it? And if there is an
>>> effect, is it desirable or undesirable?>>> 
>>> Behind this whole situation is the question of what clubs mean?
>>> There wouldn't be a problem if a player's club were really flexible
>>> - A could be a member of SC at one tournament and of LC at the next,
>>> or if A could be a member of both. However, the ranking system
>>> associates a single club with each member - and Geoff invests effort
>>> in noticing changes in players' clubs in tournament results. But
>>> with a high density of clubs in some areas and the ability to play
>>> opponents online wherever they are, the association of a player with
>>> a single club for tournament purposes seems sub-optimal.>>> 
>>> Chris
>>> 
>>> P.S. In the real situation, A played as LC and did end up playing 1
>>>      of the 3 rounds against LC. He was quite content, however, not
>>>      to play all 3 - which could easily have happened!>>> 
>> 
>> 


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-- 
*Matt Marsh*
matt at crazedbytes.net
+44 (0)7795 297779[1]


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