How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Wednesday, 12/3100.0*Chance in playoffs100.0*Average seed
Sweeting 6 Nedohin 12 +15.4
+0.7
Nedohin 9 Jones 5 +15.4
+0.7
Jones 9 Flaxey 8 +0.7
Sweeting 8 Anderson 2 +0.4
+0.1
Thursday, 12/4100.0*Chance in playoffs100.0*Average seed
Nedohin 7 Anderson 4 +15.7
+0.5
Homan 7 Sweeting 6 +4.6
+0.1
Homan 5 Nedohin 4 -3.1
-0.5
Jones 8 Sweeting 10 -0.9
Flaxey 5 Anderson 7 -0.5
-0.0
Middaugh 7 Jones 12 -0.1
If winner is:HomeAway
Friday, 12/5100.0*Chance in playoffs100.0*Average seed
Nedohin vs FlaxeyIn-2.5
+0.0-0.2
Jones vs Homan-0.6In
+0.1-0.0
Middaugh vs Nedohin-0.5In
Anderson vs Homan+0.1-0.0

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs1234567Count
52-0In19925,233,946
41-1In19906,043,588
30-284.5%137215209,070
Total:99.9%1980031,486,604
Games Above .500
Chance Will Make Playoffs