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
Kevin 63.4 Stephen 93 -15.5
-0.5
Piatt 91.3 Ryan 86.4 +2.0
+0.0
John 72.8 Evan 122.4 -1.4
-0.0
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Ryan 83.9 Kevin 123.3 +19.7
+0.5
Stephen 82.7 John 128.4 +1.1
+0.3
Evan 110.3 Becky 110.1 -0.1
Jess 53.7 Piatt 116.3 +0.0
Week of 12/3100.0*Chance in playoffs100.0*Average seed
John 99.6 Ryan 84.8 +38.5
+0.4
Kevin 68.6 Jess 112.8 -38.4
-0.4
Becky 116.9 Stephen 72.4 +0.2
+0.0
Games Above .500
Chance Will Make Playoffs