How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
Derek 100.5 Manj 60.2 -9.6
-0.1
BenF 96.4 Mitch 101 -6.4
-0.3
AndrewL 80.9 AndrewF 99.6 +2.2
Ryan 105.9 Kyle 70.9 +2.0
-0.1
John 96 BenG 53.9 +0.6
-0.1
Phil 70 Jaylen 74 -0.4
-0.1
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Derek 123.1 BenF 67 -6.8
-0.5
Mitch 100.6 AndrewL 120.7 -1.6
Kyle 101.5 Jaylen 73.7 -0.9
+0.0
BenG 80.4 Phil 73 -0.9
-0.0
Manj 113 John 59.5 -0.8
AndrewF 70.1 Ryan 92.1 +0.1
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
John vs BenF-1.0+1.5
AndrewF vs Kyle-0.6+0.1
Jaylen vs BenG-0.3+0.1
Ryan vs Mitch-0.3+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
61-0Out49419123,922,664
50-1Out901036,507,936
Total:Out1916355660,430,600
Games Above .500
Chance Will Make Playoffs