How are these numbers calculated?

Big Games

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

Friday100.0*Chance wins title100.0*Average seed
Staples 54 Bassick 32 +13.4
+0.9
Norwalk 48 Ridgefield 60 -11.7
-0.1
Trumbull 54 Darien 19 -0.2
St. Joseph 65 Greenwich 40 -0.1
Saturday100.0*Chance wins title100.0*Average seed
Staples 37 Ridgefield 40 No
-0.8
Monday100.0*Chance wins title100.0*Average seed
Trumbull 62 Danbury 43 -0.5
Games Above .500
Chance Will Win Championship