How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Chance in playoffs100.0*Average seed
Alex 78.86 Mitch 66.34 -12.9
-1.0
Peter 119.92 Kyle 96.36 -2.4
-0.2
Caitlin 102.72 Domir 113.22 +1.2
Stefan 106.64 Courtney 91.98 +0.9
-0.1
Nick 100.94 Hirson 79.74 +0.5
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Peter 83.88 Nick 73.04 Out
Courtney 94.06 Alex 93.2 +0.8
+0.1
Mitch 161.86 Domir 105.04 +0.8
+0.4
Hirson 142.9 Stefan 101.32 -0.5
+0.1
Kyle 102.72 Caitlin 139.4 -0.2
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Courtney vs Mitch-0.6+0.6
Alex vs Hirson-0.5+0.5
Peter vs Stefan+0.1-0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
71-0Out505010,928,815
60-1Out4450610,929,925
Total:Out254725321,858,740
Games Above .500
Chance Will Make Playoffs