How are these numbers calculated?

Big Games

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

Week of 7/1100.0*Average seed
Brooklyn 1 Westchester 0 -0.6
Bermuda 3 Long Island 1 -0.2
River City 1 Inferno 2 -0.1
Virginia Beach 1 SW Virginia 3 +0.0
Ocean City 4 Bermuda 0 +0.0
Seacoast 1 Boston 1 -0.0
Westchester 1 Reading 5 -0.0
Week of 7/8100.0*Average seed
Virginia Beach 2 West Virginia 0 -1.0
Vermont 2 Azul 4 -0.4
Portland Phoenix 5 Boston 0 -0.4
Ocean City 5 Westchester 1 -0.2
Bermuda 2 Baltimore 1 -0.2
Week of 7/15100.0*Average seed
Bermuda 3 Westchester 1 -1.2
Points
Chance Will Make Playoffs