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albert ohana Reply

adjusted score ( 14:13:15 SatJan 11 2003 ) Select Action Reply Quote post Report post Last posts Whisper Hello David Please could you explain tome how to calculate the matchpoints when an assigned adjusted score has not occured on the board : NS are assigned 430, and the board contains no 430 but five 400 and two 460 Many thanks in advance P.S. Would you be in Menton next June ? Best regards Albert

Ed 172 posts Forum Host Reply

Re: adjusted score ( 23:24:35 SunJan 12 2003 ) Select Action Reply Quote post Report post Last posts Ignore user Global ignore Whisper If I understand you correctly, there are 5 results of 400, 2 results of 460, and one (assigned) result of 430. You matchpoint this the same way you would if the assigned result had actually occurred at the table: the two 460s each get 6.5 (in ACBL-land) or 13 (Europe and, I think, most everywhere else outside ACBL-land) matchpoints. The 430 pair gets 5 or 10, and the rest get 2 or 4. This is based, of course, on the standard 1 (or 2) matchpoint(s) for each pair beaten, 0.5 (or 1) matchpoint for each pair tied, and 0 matchpoints (in both cases) for each pair which did better than the pair in question.

bluejak 427 posts Forum Host Reply

Re: adjusted score ( 01:33:57 MonJan 13 2003 ) Select Action Reply Quote post Report post Last posts Ignore user Global ignore Whisper I do not know whether I shall be in Menton, but I certainly hope so! --- David Stevenson <laws2@blakjak.com> Liverpool, England, UK http://blakjak.com/lws_menu.htm

albert ohana Reply

Re: adjusted score ( 15:37:05 MonJan 13 2003 ) Select Action Reply Quote post Report post Last posts Whisper Thank you Ed for your reply, but I am afraid I have not explained my interrogation In the EBU "White book", there is a paragraph 12.23 concerning" assigned adjusted score has not occured on board" , where it is given an exemple in which it is question of weighted average of the score next higher and next lower, and I have not understand well how they arrive at that result. They say that if NS are assigned +43O and the board contains no 43O but five 420 (for 4mps each) and two 450 ( for 11 mps each), then 9 mps should be assigned to 430 Can you help me, because I was like you, thinking that is suffices to inscribe 430 as if the result had occured at the table Many thanks Al. Ohana

bluejak 427 posts Forum Host Reply

Re: adjusted score ( 13:03:44 TueJan 14 2003 ) Select Action Reply Quote post Report post Last posts Ignore user Global ignore Whisper I think the White book is wrong in not saying when this applies. Since I am currently re-writing the White book, I shall make sure this appears in the next one! If you can re-score the board - which is another way of saying do what Ed suggests - then that is definitely best. What is contained in the White book has two applications. First, if you are too late to re-score the board, and especially when it is too complicated, for example you have 150 tables and want to make a small adjustment, perhaps because of an appeal, some hours later, this applies. Second, very little software has yet been written to allow for weighted scores. So if you have a weighted score then you have to do something. Now, if you are running a six table event in your club, you could score it properly, by producing different scores for each table dependent on the various scores, and then applying the weighting to every pair. Even for six tables that is very complicated: for any more it is impractical. So the EBU method is a practical and fairly accurate method of working out how to deal with scores when you are putting in a manual adjustment, either because it is too late to re-score, or because it is a weighted score. --- David Stevenson <laws2@blakjak.com> Liverpool, England, UK http://blakjak.com/lws_menu.htm

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