Pedzisa mutsara unotevera: Ronald Câmara aiva nhengo yevatongi ve
1972 na1986 Chess Olympiads, uye mutongi mukuru weWorld Junior Chess Championship muna 1978. Akanga ari Mutevedzeri weMutungamiri weBrazilian Chess Confederation (1970-1976) uye Mutungamiri weFIDE South American Zone (1974-1978).