fubiwei Posted December 11, 2009 Report Share Posted December 11, 2009 Can somebody tell me the formular used by BBO when I choose IMP in public? Quote Link to comment Share on other sites More sharing options...
gwnn Posted December 11, 2009 Report Share Posted December 11, 2009 It uses the standard IMP table. You are compared with the other 15 tables and all your imps are added up. Then the result is divided by 15. For example, suppose it is NV (where a game swing is 6 imps) and half the field bids a game and half a field doesn't, and you are in the lucky half. Then there will be 8*6 imps+7*0 imps=48 divided by 15 is 3.2 . Quote Link to comment Share on other sites More sharing options...
Gerardo Posted December 11, 2009 Report Share Posted December 11, 2009 It uses cross IMP, it does NOT use Butler. For comparison, it is similar to MP gets calculated, with the IMPs difference instead of 1/0.5/0 or 2/1/0 as possible results. Also, the Cavendish does similarly. It compares against all other results, takes the IMP difference of all the comparisons, takes the sum off all that (just like the Cavendish) then divides that by the number of comparisons. There is no average, not dropped results (and PLEASE, do not ask for them) Quote Link to comment Share on other sites More sharing options...
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