Underperforming Against Brazilian Opponents

I do not have a Diamond Account so I can't see the data that break down performance by country, but I've played 10,000 games and have been aware for some time that I struggle DRAMATICALLY against opponents from Brazil.

SI play all of my games against opponents that are +/-50 ratings points, so theoretically these should be 50/50 matches, but I feel like I'm losing 75%-80% of my games again Brazilian opponents.

Anybody else have this experience?  What gives?

Maybe you're intimidated by their beautiful tan physiques and the soulful melody of their accents?

I have exactly the same! I always loose to Brazilians. I suspect they be cheating more...

You're completely even against Brazilian players in Rapid (where you have the most games) with 26 wins, 7 draws, and 26 losses