How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Average seed
Graham 125 Tim 175 -0.0
Mahoney 147 Ben 125 +0.0
If winner is:HomeAway
Week of 11/29100.0*Average seed
Tim vs Brenden-0.0+0.1

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
102-0In49640,201,555
8-9In10038,238,653*
Total:In29878,440,208

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs