How are these numbers calculated?

Big Games

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

Week of 11/16100.0*Chance in playoffs100.0*Average seed
Tom 100.32 Ziyi 45 -20.9
-1.4
Justin 72.22 Bhairav 74.1 +5.3
+0.2
Adam 93.22 Jack 58.24 -3.6
-0.2
Jesse 78.46 Jeffrey 69.18 +2.4
+0.1
Tony 109.48 Simon 52.34 +1.9
Anand 76.6 Bryan 32.7 +1.0
+0.1
David 76.82 Jon 66.28 -0.3
Week of 11/23100.0*Chance in playoffs100.0*Average seed
Ziyi 100.82 Tony 83.04 +23.6
+1.6
Jack 63.56 Justin 110.76 -7.2
-0.3
Simon 68.28 Bhairav 97 +5.0
+0.1
Anand 99.1 David 97.14 +3.9
+0.1
Jeffrey 112.96 Tom 86.92 -2.3
-0.1
Jon 73.62 Adam 58.82 +0.6
Bryan 67.9 Jesse 59.88 -0.3
-0.1
If winner is:HomeAway
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Ziyi vs Simon+10.0-13.3
+1.2-1.6
Tony vs Jeffrey+4.9-6.6
Tom vs Bryan-4.6+6.1
-0.2+0.3
Jesse vs David+3.6-6.6
+0.2-0.3
Justin vs Jon+1.6-1.6
Adam vs Anand-1.3+1.3

What If

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

100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567891011121314Count
71-0100.0%29531430035,328,807
60-176.71031361941026,388,213
Total:90.0%1730121516820061,717,020
Games Above .500
Chance Will Make Playoffs