The World Cup in Hyeres these days will decide the Dutch boat in the women's 49erFX. Bekkering/Duetz are world class and perform way better than Keijzer/Blom in basically every major competition. However, Keijzer/Blom performed better in some internal qualification and so they have the main right to take the quota. However - again - Keijzer/Blom did NOT yet comply with the national standards set by the Dutch Olympic Committee, whereas Bekkering/Duetz already did so a million times.
Basically the result is this: if Keijzer/Blom reach the national standard in Hyeres, they'll go to Rio. If not, Bekkering/Duetz will go to Rio. To do so, Keijzer/Blom have to be in the top-6 of the standings - counting only one boat per nation and counting the other Dutch boat. If they don't make it, Bekkering/Duetz will go.
Me and other Dutch fans are very much hoping Keijzer/Blom don't make it, because they didn't have any impressive result so far, whereas Bekkering/Duetz are world class by now. With them we could win a medal, with Keijzer/Blom we'd need a miracle to medal.