How are these numbers calculated?

Big Games

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

Week of 9/20100.0*Chance in playoffs100.0*Average seed
Tucson 0 Richmond 0 -1.4
-0.0
Madison 1 North Texas 0 Out
Chattanooga 2 Orlando B 1 -0.4
-0.1
Lansing 1 South Georgia 1 +0.1
-0.0
Greenville 3 Toronto II 1 -0.1
+0.1
Tucson 2 Greenville 3 +0.2
Week of 9/27100.0*Chance in playoffs100.0*Average seed
Richmond 1 Toronto II 2 -0.9
Chattanooga 2 Richmond 1 -0.4
Tucson 1 Madison 1 +0.0
Week of 10/4None
Points
Chance Will Make Playoffs