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
Stefan 106.64 Courtney 91.98 -10.7
-0.8
Peter 119.92 Kyle 96.36 -2.7
-0.1
Caitlin 102.72 Domir 113.22 +2.7
+0.1
Alex 78.86 Mitch 66.34 +1.1
Nick 100.94 Hirson 79.74 +1.0
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Courtney 94.06 Alex 93.2 +7.1
+0.9
Peter 83.88 Nick 73.04 -2.8
-0.1
Kyle 102.72 Caitlin 139.4 -2.3
Hirson 142.9 Stefan 101.32 -1.9
+0.1
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Courtney vs Mitch+0.9-0.9
Alex vs Hirson-0.3+0.3
Caitlin vs Nick-0.2+0.2
Peter vs Stefan+0.1-0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
71-0Out18691310,929,925
60-1Out50292110,928,815
Total:Out93531151021,858,740
Games Above .500
Chance Will Make Playoffs