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
Nick 100.94 Hirson 79.74 -21.6
-1.0
Stefan 106.64 Courtney 91.98 -2.0
Peter 119.92 Kyle 96.36 -1.8
-0.1
Alex 78.86 Mitch 66.34 -0.6
Caitlin 102.72 Domir 113.22 +0.2
+0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Hirson 142.9 Stefan 101.32 +24.0
+1.1
Courtney 94.06 Alex 93.2 +4.4
Peter 83.88 Nick 73.04 -2.4
-0.1
Mitch 161.86 Domir 105.04 +1.2
-0.1
Kyle 102.72 Caitlin 139.4 -0.4
-0.1
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Peter vs Stefan-20.1In
-0.4+0.4
Alex vs Hirson-20.1In
-0.4+0.4
Courtney vs Mitch-4.9+4.9
-0.1+0.1
Caitlin vs Nick+4.9-4.9
+0.5-0.5

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
81-0In505010,926,766
70-159.9%253535610,931,974
Total:79.9%384217321,858,740
Games Above .500
Chance Will Make Playoffs