How are these numbers calculated?

Big Games

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

Wednesday, 1/20100.0*Chance in playoffs100.0*Average seed
Middaugh 4 Harrison 6 +13.3
+1.0
Harrison 8 Tippin 5 +12.9
+1.0
Flaxey 8 Morrissey 5 +1.6
Morrissey 4 Hastings 8 +0.8
Hastings 7 Tippin 6 +0.7
Hanna 6 Flaxey 4 -0.6
-0.0
Auld 7 Kean 6 -0.6
+0.0
Homan 8 Hanna 7 +0.5
+0.0
Kean 3 Homan 8 +0.1
+0.0
Thursday, 1/21100.0*Chance in playoffs100.0*Average seed
Auld 6 Harrison 5 -18.7
-0.8
Morrissey 5 Harrison 9 +12.1
+0.5
Tippin 9 Middaugh 8 +4.8
+0.1
Hastings 4 Hanna 10 -3.0
-0.1
Morrissey 4 Kean 7 +2.2
+0.1
Flaxey 6 Hastings 4 +1.9
+0.1
Hanna 6 Middaugh 5 +1.7
Auld 4 Homan 7 +0.6
+0.0
Kean 3 Tippin 7 -0.1
If winner is:HomeAway
Friday, 1/22100.0*Chance in playoffs100.0*Average seed
Harrison vs Hastings+16.8-26.7
+0.6-0.9
Harrison vs Flaxey+11.5-30.1
+0.4-1.0
Tippin vs Auld-10.8+10.8
Hastings vs Homan-15.4+1.3
-0.3+0.0
Flaxey vs Auld+12.0-4.6
+0.2-0.1
Tippin vs Morrissey-3.8+9.8
-0.1+0.2
Middaugh vs Homan+1.9-0.2
Middaugh vs Kean+0.5-0.8
Hanna vs Morrissey-0.2+0.6
-0.1+0.3
Hanna vs Kean-0.2+0.5
-0.1+0.3

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
62-0In3640257,073,073,544
51-164.9%1135133207,151,816,433
40-27.0073729233001,707,434,303
Total:74.3%162335194300015,932,324,280
Games Above .500
Chance Will Make Playoffs