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*Chance in playoffs100.0*Average seed
Nordekes 4 Hellfish 4 *-0.1
Week of 8/31100.0*Chance in playoffs100.0*Average seed
PondScum 6 UnionTavern 0 Out
-0.7
DudleyAvalanche 0 BaystateBulldogs 4 +41.6
+1.0

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Make Playoffs