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 Ziggyny finish out the regular season.   Explain

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs12345678Count
161-0-0In10012,329,921
13-14In1004,252,543*
Total:In742616,582,464

* Row combines multiple less frequent records.

Points
Chance Will Make Playoffs