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
Seacoast 1 Boston 1 -0.3
Ocean City 4 Bermuda 0 +0.1
Bermuda 3 Long Island 1 -0.1
Brooklyn 1 Westchester 0 +0.1
Week of 7/8100.0*Average seed
Portland Phoenix 5 Boston 0 -1.3
Virginia Beach 2 West Virginia 0 -0.8
Carolina 1 Northern Virginia 1 -0.5
El Paso 1 Laredo 4 -0.5
Long Island 0 Express 2 -0.5
Baltimore 2 Brooklyn 2 -0.5
Ottawa 1 Western Mass 1 -0.5
Thunder Bay 3 Kansas City 1 -0.5
West-Texas 2 Texas 0 -0.5
Fresno 3 Southern Cal 1 -0.5
Seacoast 0 Worcester 2 -0.5
New Orleans 1 Austin 0 -0.5
Winnipeg 2 Springfield 1 -0.4
Orange County 5 BYU 1 -0.4
Spartans 0 NJ Rangers 1 -0.4
Bermuda 2 Baltimore 1 -0.2
Vermont 2 Azul 4 -0.2
Ocean City 5 Westchester 1 +0.1
Seacoast 0 Portland Phoenix 0 +0.1
Boston 1 Worcester 0 +0.0
Week of 7/15None
Points
Chance Will Make Playoffs