How are these numbers calculated?

Big Games

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

Week of 7/30100.0*Chance in playoffs100.0*Average seed
Pittsburgh 2 Richmond 0 +10.5
+0.1
Dayton 2 FC New York 0 +2.6
Harrisburg 0 FC New York 0 In
Week of 8/6None
Week of 8/13None
Points
Chance Will Make Playoffs