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 +14.1
+1.0
Stefan 106.64 Courtney 91.98 +1.6
-0.1
Nick 100.94 Hirson 79.74 -1.3
Peter 119.92 Kyle 96.36 -0.4
-0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Courtney 94.06 Alex 93.2 -21.4
-1.2
Hirson 142.9 Stefan 101.32 -2.2
+0.1
Mitch 161.86 Domir 105.04 -1.3
-0.1
Peter 83.88 Nick 73.04 +0.5
-0.1
Kyle 102.72 Caitlin 139.4 +0.3
-0.1
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Alex vs Hirson+1.2-1.2
Courtney vs Mitch-0.2+0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
71-0Out25502510,931,974
60-1Out0514910,926,766
Total:Out132513262421,858,740
Games Above .500
Chance Will Make Playoffs