How are these numbers calculated?

Big Games

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

Week of 8/19100.0*Chowder Cup100.0*Average seed
Stiffs 2 BeardedClams 6 -1.0
-0.0
PapaGenos 0 BeardedClams 6 No
+0.1
Lux 1 Mulligans 4 -0.1
Week of 8/26None
Week of 9/3100.0*Chowder Cup100.0*Average seed
ThermonuclearZebras 0 Mulligans 1 -0.4
PapaGenos 7 Stiffs 1 -0.1
Points
Chance Will Make Playoffs