How are these numbers calculated?

Big Games

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

Monday, 4/1100.0*Average seed
JPP 19 SPA 28 -0.1
LO 25 JPP 18 -0.0
Monday, 4/8100.0*Average seed
JPP 31 BF 26 +0.5
Wednesday, 4/10None
Games Above .500
Chance Will Make Playoffs