How are these numbers calculated?

Big Games

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

Week of 4/8100.0*Chance in playoffs100.0*Average seed
Olimpia 4 Gimnasia y Esgrima 1 In
+1.3
Cobreloa 4 Alianza Lima 0 -4.8
-0.0
Week of 4/15None
Week of 4/25None
Points
Chance Will Make Playoffs