How are these numbers calculated?

Big Games

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

Week of 10/3100.0*Chance in playoffs100.0*Average seed
Brad 76.48 Jon 116.76 -5.5
-0.4
Blake 105.94 Gravy 127.4 +0.9
Chris 80.55 Faisal 139.58 +0.6
Josh 77.86 Niphon 108.61 -0.1
Dan 137.39 James 69.97 +0.1
If winner is:HomeAway
Week of 10/10100.0*Chance in playoffs100.0*Average seed
Brad vs Chris+9.9-6.4
+0.9-0.6
Jon vs James+0.6-1.5
+0.0-0.1
Gravy vs Faisal-0.9+0.2
-0.1+0.0
Blake vs Dan-0.3+0.1
-0.1+0.0
Kashif vs Josh-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
109-0In215424110,332
98-1In11955241073,980
87-299.9%02245022300495,801
76-391.20219403081001,874,613
65-435.60182738225004,440,402
54-51.400111323617306,864,630
43-60.000318373396,928,452
32-7Out011039504,419,033
21-8Out0011881,613,167
10-9Out199263,798
Total:14.7%00124710121416161726,984,208
Games Above .500
Chance Will Make Playoffs