How are these numbers calculated?

Big Games

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

Week of 4/2100.0*Chance in playoffs100.0*Average seed
Universidad de Chile 0 Olimpia 1 In
+0.7
Newell's Old Boys 3 Deportivo Lara 1 -1.1
-0.0
Week of 4/9100.0*Chance in playoffs100.0*Average seed
Olimpia 4 Newell's Old Boys 1 +0.4
Week of 4/16None
Points
Chance Will Make Playoffs