How are these numbers calculated?

Big Games

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

Week of 10/20100.0*Chance in playoffs100.0*Average seed
Boca Juniors 3 Caracas 0 +54.2
+0.5
Libertad 0 I. Medellin 1 -30.3
-0.3
Points
Chance Will Make Playoffs

Lottery

Why are you looking down here? We just made the playoffs!

Big Games

Week of 10/20100.0*Lottery seed
Libertad 0 I. Medellin 1 +3.3
Boca Juniors 3 Caracas 0 -2.0
Flamengo 3 Junior 1 -0.4
U. Catolica 2 Internacional 1 +0.4
Gremio 1 America de Cali 1 -0.3
Racing 2 E. de Merida 1 -0.3
Santos 2 Defensa y Justicia 1 -0.2
Sao Paulo 5 Binacional 1 +0.2
Bolivar 2 Guarani 3 -0.2
Penarol 3 Athletico-PR 2 +0.2
Colo-Colo 0 Jorge Wilstermann 1 -0.1
River Plate 3 LDU 0 +0.0