How are these numbers calculated?

Big Games

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

Tuesday, 12/8100.0*Chance in playoffs100.0*Average seed
Stoughton 4 Martin 8 +14.6
+0.7
Martin 7 Middaugh 3 +5.1
+0.4
Simmons 4 Ferbey 9 +2.8
Howard 7 Simmons 4 +0.9
+0.0
Ferbey 9 Gunnlaugson 4 -0.7
Gunnlaugson 4 Howard 6 -0.5
Koe 5 Stoughton 6 -0.4
Middaugh 4 Koe 11 -0.4
Wednesday, 12/9100.0*Chance in playoffs100.0*Average seed
Martin 9 Ferbey 5 +24.4
+0.9
Middaugh 7 Simmons 5 +4.1
+0.2
Stoughton 8 Gunnlaugson 4 -2.4
-0.1
Koe 6 Howard 7 -0.1
Thursday, 12/10100.0*Chance in playoffs100.0*Average seed
Koe 7 Martin 8 In
+0.5
Howard 6 Martin 8 +15.5
+0.8
Simmons 7 Stoughton 8 -3.8
-0.1
Stoughton 7 Middaugh 6 -3.8
-0.1
Ferbey 6 Howard 8 +0.6
Ferbey 4 Koe 9 +0.4
Games Above .500
Chance Will Make Playoffs