[tournament-org] The Bar in general

[Geoff Kaniuk]

The initial McMahon score as determined by grade is measured in ZSU 
(zero shodan units).

Thus a 1d is zero, a 1k is -1, a 2d is +1.

The bar setting Mbar  is the initial MMS for all players above the bar.

So if the bar is at 2d Mbar is +1
So if the bar is at 3d Mbar is +2
So if the bar is at 1k Mbar is -1

Geoff

33 Ashbury Close, Cambridge CB1 3RW 01223 710582

On 24/11/2018 08:43, ptm at tobymanning.co.uk wrote:
> OK, the entry has changed significantly since I made my first posting.
> 
> In this case I agree that the bar should be at either 3 dan or 2 dan (do
> the people above the bar start at +1 or +2?)
> 
> Sorry, I am not going to get involved in finding out how people
> estimated their grades - I consider that an unwarranted interference
> with the organisation.
> 
> Now off to Coventry.
> 
> Toby
> 
> On 2018-11-23 23:14, Geoff Kaniuk via tournament-org wrote:
> 
>> According to my reading of the entry list we have:
>>
>> 2*5d 4d 3d 5*1d 1kyu ...
>>
>> It is a 3 round event.
>>
>> If you blindly apply the existing BGA tables [4 to 8] players, the bar will be set at 3d, because adding in the 1d will make 9 players above the bar. This is another good example of a very unbalanced bar group with a big gap.
>>
>> You could set the bar at 3d and still be within the BGA tables.  I think GoDraw will set the bar at 3d - giving a bar depth of 2.
>>
>> There are some new players at the top:
>> Yiming Zhang 5d
>> Xu Hanxi 3d
>> Jason 5d
>>
>> I guess they will all be stronger than 1d
>>
>> The 1d can win the tournament against 5d 5d 4d with probability:
>>
>> 0.057*0.057*0.146 = 0.047%
>>
>> Finally, please remember that if the organiser does not like the bar setting he can change it after close of registration and before doing the draw for round 1.
>>
>> Can you please try to find out how the new players have estimated their grades?
>>
>> Geoff
>>
>> 33 Ashbury Close, Cambridge CB1 3RW 01223 710582
>>
>> On 23/11/2018 18:32, TobyManning via tournament-org wrote:
>>
>>> Tomorrow at Coventry th entry is 5d 4d 5*1d 1k.
>>>
>>> The Bar is therefore logically at 1 kyu.
>>>
>>> I will check with the organisers what the software is saying.
>>>
>>> Toby
>>
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