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 +12.4
+1.0
Stefan 106.64 Courtney 91.98 +2.2
-0.1
Nick 100.94 Hirson 79.74 -1.8
Peter 119.92 Kyle 96.36 -0.3
-0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Courtney 94.06 Alex 93.2 -23.8
-1.3
Hirson 142.9 Stefan 101.32 -1.7
+0.1
Mitch 161.86 Domir 105.04 -1.7
-0.2
Peter 83.88 Nick 73.04 +0.3
-0.1
Kyle 102.72 Caitlin 139.4 -0.0
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Alex vs Hirson+1.2-1.0
Courtney vs Mitch-0.2+0.2
Peter vs Stefan+0.0-0.1

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
71-0Out18503230,090,177
60-1Out0663439,345,243
Total:Out82214371969,435,420
Games Above .500
Chance Will Make Playoffs