[blml] 60% session in IMPs

[Alain Gottcheiner]

Konrad Ciborowski a écrit :
>> Since 60% is equalled to +3 IMPs, I'd say 60% on a 20-board match is +60 
>> IMPs, and 40% is -60 IMPs.
>>     
>
>
> Good. So if I am about to award average plus to a contestant
> whose final score for the 20-deal session is 
> 62 IMPs then he will get...?
>
> For the rest of the 19 deals he averaged 
> 3.2631578947368421052631578947368 IMPs per deal.
> If you think that giving him
> 3.2631578947368421052631578947368 IMPs for the 20th deal
> as average plus which will make the contestant's final 
> score for the sesson 
> 65.263157894736842105263157894737 IMPs
> is the right answer then please tell me what happens if 
> the final score is supposed to be converted to VPs. 
> Say it is a team match.
>
>   
Easy ! Fractional IMPs are rounded to the nearest integer (.5 usually 
rounded high).

This happens rather frequently.
For example, if you award an adjusted score of [70% of + 460] and [30% 
of -50]  vs +50 at the other table, it is
(0.7 * 9) + (0.3 * -3) =  +5.4 IMPs, rounded to +5.

Of course it means that, in this particular case, it will just be +3 
IMPs, but make their score on 19 deals +70 and they will get +4 for the 
final deal.

Best regards

   Alain