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*Chance in playoffs100.0*Average seed
Reading 4 Brooklyn 0 +15.0
+1.0
Westchester 1 Reading 5 +13.8
+0.5
Express 4 Spartans 2 -13.8
-0.4
Baltimore 3 Express 2 +9.8
+0.3
Ottawa 4 Worcester 0 -1.8
-0.1
Maryland 2 Carolina 4 +1.8
+0.0
West Virginia 1 Palmetto 1 +0.9
+0.0
Ocean City 4 Bermuda 0 -0.5
-0.2
Ocean City 2 NJ Rangers 1 -0.4
-0.2
NJ Rangers 3 Baltimore 2 -0.4
NJ Rangers 4 Spartans 0 -0.1
Ft. Lauderdale 0 Ocala 3 *-0.1
Jax 1 Panama City 3 *-0.1
Crossfire 0 Sounders-U23 1 *-0.1
St. Louis 2 Thunder Bay 3 *-0.1
Fire-PDL 0 Michigan 2 *-0.1
Week of 7/8100.0*Chance in playoffs100.0*Average seed
Long Island 0 Express 2 -37.4
-0.9
Reading 2 Ocean City 0 +23.9
+0.9
Portland Phoenix 5 Boston 0 -13.4
Thunder Bay 3 Kansas City 1 -13.4
Fresno 3 Southern Cal 1 -13.3
Vermont 2 Azul 4 -13.3
New Orleans 1 Austin 0 -13.3
El Paso 1 Laredo 4 -13.3
Seacoast 0 Worcester 2 -13.2
Orange County 5 BYU 1 -13.2
Spartans 0 NJ Rangers 1 -13.2
Winnipeg 2 Springfield 1 -13.1
Virginia Beach 2 West Virginia 0 -13.1
West-Texas 2 Texas 0 -13.0
Carolina 1 Northern Virginia 1 -13.0
Ottawa 1 Western Mass 1 -12.8
Baltimore 2 Brooklyn 2 -12.5
Express 1 Reading 1 +8.1
+0.1
Ocean City 5 Westchester 1 -1.3
-0.3
Week of 7/15100.0*Chance in playoffs100.0*Average seed
Spartans 1 Reading 2 In
+1.7
Ocean City 1 Brooklyn 0 -0.3

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Points
Chance Will Make Playoffs