lol no one is good at predicting the actual brackets
Predicting the actual brackets is damn near impossible. You'd have to get the entire seed list from 1 to 68 correct and even if u did, you'd still run into circumstances where you couldn't predict it completely.
Like if you said UK was the top 4 seed (ie 13th) and they ended up 14th, that would potentially change the entire bracket.
That's why it's impossible.
The bracket challenge usually scores on three things
1) How many you predict get in (which usually everyone can get 65 or more correct)
2) How many teams you predicted the correct seed
3) Then they give points if your within 1 seed either way.
http://www.bracketmatrix.com/