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 +16.4
+0.9
Martin 7 Middaugh 3 +13.4
+0.8
Simmons 4 Ferbey 9 +1.6
Gunnlaugson 4 Howard 6 -1.6
Howard 7 Simmons 4 +1.2
Ferbey 9 Gunnlaugson 4 -1.1
Middaugh 4 Koe 11 -0.5
Koe 5 Stoughton 6 +0.2
Wednesday, 12/9100.0*Chance in playoffs100.0*Average seed
Martin 9 Ferbey 5 +21.9
+0.7
Stoughton 8 Gunnlaugson 4 -2.0
-0.1
Middaugh 7 Simmons 5 +1.8
+0.1
Koe 6 Howard 7 -1.5
Thursday, 12/10100.0*Chance in playoffs100.0*Average seed
Koe 7 Martin 8 In
+0.6
Howard 6 Martin 8 +10.9
+0.6
Stoughton 7 Middaugh 6 -4.7
Simmons 7 Stoughton 8 -4.7
Ferbey 4 Koe 9 +4.7
-0.1
Ferbey 6 Howard 8 +4.1
-0.1
Games Above .500
Chance Will Make Playoffs