How are these numbers calculated?

Big Games

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

Week of 1/25100.0*Chance in playoffs100.0*Average seed
Walsh 150 Nick 168 -13.9
-0.7
Walsh 124.5 Micah 178 -13.4
-0.7
David 196 Jacob 182.5 -1.8
-0.1
Nick 128 Birk 160.5 -1.3
-0.1
David 132.5 Brent 126.5 -0.9
Adam 159.5 Jacob 154.5 +0.6
Micah 175.5 Birk 158.5 -0.3
Brent 161 Adam 149.5 -0.2
Dosters 102.5 Bill 213 -0.2
Week of 2/1100.0*Chance in playoffs100.0*Average seed
Brent 5 Micah 2 +0.9
-0.1
If winner is:HomeAway
Walsh vs Adam+9.7-9.7
+0.6-0.6
Brent vs Nick+2.2-2.2
David vs Birk+1.9-1.9
+0.1-0.1
Dosters vs Adam-0.9+0.9
Bill vs Jacob-0.7+0.7
Bill vs Birk+0.5-0.5
Micah vs Jacob+0.3-0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLTplayoffs123456789101112Count
125-000100.0%1144433700302,813
114-01074.704244623201,503,505
103-0201.622962703,011,325
92-030Out405193,011,470
81-040Out647481,505,144
70-050Out991303,671
Total:15.3%001248133326139,637,928
Points
Chance Will Make Playoffs