Hey Dennisma,
yes you are right.
The rules do not stipulate that the best y out of x runs must be scored in a tournament.
This depends on the format of the competition and can be freely decided by the organizers.
Technically you could have lets say 8 rounds and score all 8. In this case you could take rule 4.6.15 as it is. → (TOTAL SCORE) = 0.8 x (MEAN OF NORMALIZED FIELD SCORES)…
The example is addressed specifically to the upcoming world championship in Bordeaux.
We have been using this procedure for several years, but it has never been explicitly written into the rules.
One reason for this is that if due to unknown circumstances e.g. only four rounds are possible, all runs can be scored. Or in case of a higher number of runs, two runs can be taken out of the evaluation without being restricted by the rules.
I hope I could help you with this.
If you have any further questions, please do not hesitate to contact us.
Best,
Alexander
2023 Committee