maybe not 100% aligned to the topic, but besides the PWA event in Ibiraquera/Brazil (that still is to be confirmed) there are some other national/local events in Brazil with rather good sailors. The full list of events you can find in following website:
(search under "Calendário")
The website is in portuguese, but I'm sure you will manage it by knowing Spanish. Usually Kauli, Konan Lang, Brawzinho and Ricardo try to participate in the wave events in Rio de Janeiro and Ibiraquera so it is quite good level.