How are these numbers calculated?

Big Games

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

Week of 8/20100.0*Average seed
PupNSuds 8 TuukkaDump 6 +0.3
IceDevils 4 Diablo 7 -0.1
Week of 8/27100.0*Average seed
ElectricPancakes 10 PupNSuds 4 -0.7
Week of 9/4100.0*Average seed
RedHawks 10 PupNSuds 6 -1.0
BananaSlugs 3 ALKU 0 +0.2
Points
Chance Will Make Playoffs