How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Chance in playoffs100.0*Average seed
Clint 170 Travis 131 In
+0.3
Tim 105 David 86 +0.7
+0.1
Nathan 149 Jeff 97 +0.7
+0.1
Ben 120 Charlie 135 +0.1
Week of 11/26None
Games Above .500
Chance Will Make Playoffs