How are these numbers calculated?

Big Games

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

Friday100.0*Average seed
St. Joseph 65 Greenwich 40 -0.3
Staples 54 Bassick 32 +0.1
Trumbull 54 Darien 19 -0.1
New Canaan 42 Danbury 62 -0.1
Saturday100.0*Average seed
Danbury 55 Stamford 35 -0.3
Monday100.0*Average seed
Trumbull 62 Danbury 43 +0.5
Games Above .500
Chance Will Win Championship