How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Friday100.0*Average seed
Oklahoma City 1 Iowa 3 +0.5
Grand Rapids 2 Charlotte 4 +0.0
Saturday100.0*Average seed
Grand Rapids 3 Charlotte 4 (ot)-0.3
Oklahoma City 3 Iowa 1 -0.2
SundayNone
Points
Chance Will Make Playoffs