How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 8/25100.0*Average seed
Dobey [c] 2 Gurney 7 +0.2
Wright 7 de Zwaan [c] 1 +0.2
Week of 8/27100.0*Average seed
Wattimena [c] 0 Price 7 +0.2
Week of 9/4None
Games Above .500
Chance Will Make Playoffs