How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Thursday100.0*Average seed
Gunners 1 Black Flag 4 +0.5
Guardians 3 Diggers 1 +0.2
HC Stratovarius 3 Seals 2 +0.1
Stabbers 3 Car Stealer 1 -0.0
Friday100.0*Average seed
Black Flag 3 Guardians 2 (so)+0.6
Narwhals 0 Oompa Loompa 1 +0.3
SaturdayNone
Points
Chance Will Make Playoffs