Strikeforce Grand Prix early predictions?

[mmmmmmm]

Opening Rounds
Overeem vs Werdum - Overeem KO first round
Fedor vs Silva - Fedor KO first round
Arlovski vs Karaganov - Karaganov KO round 3
Barnett vs Rogers Barnett round 2 GnP

Semi Finals
Fedor vs Overeem - really tough one to call but ima say Fedor armbar round 2 or mayb a KO
Barnett vs Karaganov - Barnett Sub Strikes round 2

Finals
Fedor vs Barnett - Fedor 4th Round Sub
these are my predictions what are yours???