How are these numbers calculated?

Big Games

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

Week of 8/22None
Week of 8/29100.0*Chance in playoffs100.0*Chowder Cup100.0*Average seed
Grizzlies 3 TeamMG 9 In
+15.2
+2.6
Stiffs 5 Bamboozalers 9 +0.9
-0.5
+0.0
PapaGenos 6 Rogues 9 +0.9
-0.5
+0.0
Chiefs2 7 Brewers 9 +0.9
-0.5
+0.0
Points
Chance Will Make Playoffs