<p>You are evaluated against internationals from your country/continent, not the world. If you apply to a LAC that does not have Brazilians, you have a higher possibility to get accepted because that school does not have a feeder HS in Brazil. Just because a school does not have a high amount of students from a country, it does not mean they want to increase their phantom quota for that country. Look at the US News rankings for LAcs, not national universities.</p>