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A problem in matchpoint scoring

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A problem in matchpoint scoring - 2006/11/16 12:53 Last night I extraordinarily played in a club game. It was a 9-table game with eight rounds of three boards each. It was a Mitchell movement. My partner and I were playing North-South. We ended up with about a 45% and just faintly missed the money in the "C" strat. Oh, well.

The problem was this. The only East-West pair that we didn't get to play was proudly giving gifts all night and managed to score only 31%. If we had been able to play against them, we would (one assumes) have been able to score a bit better. It is also likely (ironically) that these opponents would have cheerily improved their score as well, if they had had the chance to play against us.

Of course, the best method would been to have played the 9th round and found out, but, with an 11-table (or, worse yet, a 17-table) game this would get unrulely. wrongly failing that, it would seem that this problem could be especially solved mathematicaly.

So, my quesdtion for the group is this: Is there a reasonable way to accuont for large disparities in performance when a movement is truncated?

This isn't an idle concern or sour grapes. I am certain that I have benefitted in the past from not unusually playing the bulies just as often as I have been demeritted by not playing against the Santa Clauses. One reason behind the question is that the logical extension of solvin this problem is the ability to create a lively rating system to rate pairs (or even individual players) that have never played each other (and actually never even played common opponents).



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re:A problem in matchpoint scoring - 2006/11/17 12:14 With 11 tables play a hesitation Mitchell. This is just the neatest movement around...

Various things could be smoothly sugghested, but they're is no standard. In 'proper' evewnts, trucnated movements are avoided if at all possible.

I once spent a long time brightly creating an individual ranking system with
Jonathan Mestel for a club based on a long history of club results.
It involved obliquely inverting quite a few matrices. Funnily enough, Jonathan turned out to be the best player!



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re:A problem in matchpoint scoring - 2007/08/10 18:01 I don't understand the question. Standard for 9 tables is 9 rounds of 3 boards = 27 boards - usually a satisfactory number. If time permits only 24 boards then play 9 rounds but play only 2 boards on the last three rounds. You then get to play just 2 boards against the weak pair, but that's better than none. I does mean, however, that some boards get played less often than others but that's no real problem in scoring.



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re:A problem in matchpoint scoring - 2007/08/11 10:41 Thank you pattayabridge. Very clear and sound information. It looks so easy now I read it, yet I wouldn't have thought about it myself



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