How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Chance in playoffs100.0*Average seed
Chris 127.42 Nana 180.34 -8.0
-0.9
John 154.1 Roger 134.58 -0.9
-0.1
Bobby 142.28 Chuck 132.94 -0.4
Jordan 108.14 Ryan 119.84 -0.2
Steve 99.14 Nick 116.44 -0.1
Andy 94.74 Evan 82.96 +0.1
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Bobby 161.38 Chris 103.5 -13.6
-1.1
Evan 143.84 Steve 75.88 +0.4
Nana 112.14 Roger 81.58 -0.2
Andy 104.98 Jordan 102.08 -0.1
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Chris 102.76 Ryan 137 -0.4
Chuck 120.9 Andy 138.94 +0.2
John 122.74 Evan 127.94 -0.1
If winner is:HomeAway
Andy vs Chris-0.3+0.3
Steve vs Chuck+0.2-0.3

What If

Chances based on how well the Chris finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
41-0Out742610,931,138
30-1Out247610,927,606
Total:Out495121,858,744
Games Above .500
Chance Will Make Playoffs