How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/17100.0*Average seed
Justin Woods 80 Jon Andrusak 107 +0.4
Jordan Dean 91 Kaleb Steinhauer 87 -0.2
Michael Andrusak 143 Grayson Holt 79 +0.1
Week of 11/24100.0*Average seed
Jon Andrusak 88 Michael Andrusak 102 -0.5
Jordan Dean 112 Wes Baldwin 73 -0.2
Stephen Crouch 126 Grayson Holt 109 +0.2
Kaleb Steinhauer 90 Justin Woods 75 +0.1
Drew Wills 69 Chase Newell 82 -0.1
Week of 12/1100.0*Average seed
Grayson Holt 64 Chase Newell 91 +0.2
Stephen Crouch 140 Jon Andrusak 101 -0.2
Games Above .500
Chance Will Make Playoffs