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by Matthew Turner
Fri Jun 06, 2008 10:51 am
Forum: ECF Matters
Topic: British Championships
Replies: 59
Views: 7208

Re: British Championships

Just to return to the question of playing the British in London, I think you have to answer a simple question. I see the costs of playing in London as something like this Venue 100,000 Cheif Organiser 10,000 Appearance Fees 40,000 (there is no point having a big event in London without the top playe...
by Matthew Turner
Fri Jun 06, 2008 10:18 am
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

Fairly obviously, Mean grade = Total number of grading points / number of players. So, how are points lost to the system? Well primaily, it comes from juniors entering with a grade of 40, improving until they are 11, getting to 100 grade and giving up when they join senior school. Hence if juniors e...
by Matthew Turner
Thu Jun 05, 2008 7:04 pm
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

It's interesting, but I think you have to be carerful about causality here - surely deflation causes negative grades, rather than visa-versa. Really the most interesting comment from is "The new calculation routine will even accelerate the plunge, because it's more honest than the old one about very...
by Matthew Turner
Thu Jun 05, 2008 3:09 pm
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

Sean, I am sure what you say is true, but it has always been true. It does not explain why deflation has suddenly become a feature of the system. There must have been a new external force that has created deflationary pressures. My example suggests that grading performance software (that estimates t...
by Matthew Turner
Thu Jun 05, 2008 10:15 am
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

I am still struggling a bit with this, but I am sure that there is something going on with this grading performance calculation software. Let's say that I am new to chess and only manage to play one graded game in my first year (this is perfectly plausible if my school gets knocked out in the first ...
by Matthew Turner
Thu Jun 05, 2008 1:44 am
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

Is it then true that (forgetting the forty point rule) if I play an ECF graded player then the difference between a win and a loss is 100 points. If I play a non-ECF graded player in an ECF graded event then the difference between a win and a loss is 100 - 100/n where n is the number of games that t...
by Matthew Turner
Thu Jun 05, 2008 1:09 am
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

I am finding out so much here. Lets say I have a grade of 200 and I play a Welsh player with a grade x who plays two games in English graded competitions in the grading year. In the other game he loses to a 220. If I beat him I have a grading performance of 210, if I draw a performance of 185 and if...
by Matthew Turner
Thu Jun 05, 2008 12:39 am
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

Let me try another one on you. Megan Owens has an ECF grade of 114, when she plays in the 4NCL she has a rating of 1820, you can check this on the 4NCL website. This is presumably calculated by 114*5 + 1250 but you are saying that if I play her she counts as (1820 - 600)/8 = 152.5 so an ECF grade of...
by Matthew Turner
Thu Jun 05, 2008 12:22 am
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

Let me see if I understand. I have taken this from the ECF website The following conversion applies to national Elo ratings and for FIDE Elo ratings greater than 2327: (Elo - 600) / 8 = ECF ECF x 8 + 600 = Elo For FIDE ratings lower than this, and for ECF Grading purposes only, a different formula i...
by Matthew Turner
Wed Jun 04, 2008 11:57 pm
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

Sean said Matthew - this is one of the myths of the grading system. The FIDE conversion formula is not used to calculate grades. It is simply a way for tournament organisers to compare ratings. Can this really be true? If I play someone with a Welsh rating of 2000 are you saying they still count as ...
by Matthew Turner
Wed Jun 04, 2008 9:54 pm
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: New grades (split from Editorial thread)

I must apologise for my previous comments, I had either misread or mis-interpretted the impact of the proposed changes, of course if a player graded at 100 could go up to 125 or 130 then this will be hugely significant. I am somewhat reluctant to post more comments which expose my ignorance, but I w...
by Matthew Turner
Wed Jun 04, 2008 3:04 pm
Forum: Grading Debate
Topic: New grades (split from Editorial thread)
Replies: 118
Views: 12169

Re: Editorial in June 2008 edition of "Chess"

Folks, it's all irrelevant - people's grades are going to change by two or three points. Chessplayers will take the view why on earth has the ECF wasted so much time on this, perhaps they would have been better off organising some chess.
by Matthew Turner
Wed Jun 04, 2008 11:38 am
Forum: ECF Matters
Topic: British Championships
Replies: 59
Views: 7208

Re: British Championships

ECF planning is implicitly based on the British Championships being based at a seaside resort and there needed to be some new procedures in place to get the best out of Liverpool (or other major cities that might be used in future). Obviously, if Stewart can get some cheaper accommodation then this ...
by Matthew Turner
Wed Jun 04, 2008 9:01 am
Forum: ECF Matters
Topic: British Championships
Replies: 59
Views: 7208

Re: British Championships

Neville, I think the entries have had a small boost from players receiving an appearance fee, but I am concerned that we are not going to see the usual flow of entries, because of the difficulty in obtaining accommodation. In my opinion the only way that a good (reasonable) entry will be achieved is...
by Matthew Turner
Wed Jun 04, 2008 8:52 am
Forum: ECF Matters
Topic: British Championships
Replies: 59
Views: 7208

Re: British Championships

All chess forums have had a boost recently and the Atticus site is certainly excellent, but I think it was beaten by Streatham and Brixton last year which is equally good. I hope Atticus will put themselves forward next year, because I am sure they would have an excellent chance of being the ECF's W...