How are these numbers calculated?

Big Games

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

Week of 8/18None
Week of 8/23100.0*Average seed
DudleyAvalanche 1 LordStanleysCup 6 -0.1
Nordekes 4 Hellfish 4 +0.0
Week of 8/31100.0*Average seed
PondScum 6 UnionTavern 0 -1.5
Hellfish 3 Jackals 2 +0.4
Nordekes 5 LordStanleysCup 3 -0.2
Points
Chance Will Make Playoffs