How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Chance in playoffs100.0*Average seed
deeznutz 54 dixienormous 86 In
mudslingers 82 hotchubbtimemachine 67 +0.2
triplec 110 pistolshrimp 88 +0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
dixienormous 75 milehighmagic 84 -0.4
triplec 112 mudslingers 61 -0.1
twodogs 110 smokenhoes 47 +0.1
hotchubbtimemachine 74 snowballschance 89 +0.1
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
dixienormous vs triplec+0.5-0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
91-0In10083,554
80-1In505059,060,638
Total:In505059,144,192
Games Above .500
Chance Will Make Playoffs