How are these numbers calculated?

Big Games

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

Week of 7/24100.0*Average seed
AlexM 0 finius_lyn 2 +0.2
If winner is:HomeTieAway
Ziggyny vs EvilDave-0.3+0.7+0.7

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345678Count
150-0-0In267416,582,464
Total:In267416,582,464
Points
Chance Will Make Playoffs