How are these numbers calculated?

Big Games

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

Week of 2/20100.0*Chance in playoffs100.0*Grupo D100.0*Average seed
Botafogo 2 Fluminense 0 -20.6
+20.6
-0.7
Fluminense 1 Flamengo 2 -17.0
+17.0
-0.7
Portuguesa 3 Bonsucesso 1 -7.3
+7.3
-0.2
Botafogo 2 Cabofriense 1 +3.8
-3.8
+0.1
Cabofriense 0 Flamengo 1 +3.5
-3.5
+0.1
Madureira 1 Macae 0 +3.5
-3.5
+0.1
Tigres do Brasil 1 Resende 1 +3.0
-3.0
+0.1
Madureira 2 Portuguesa 1 +3.0
-3.0
+0.1
Resende 1 Friburguense 1 +1.7
-1.7
+0.0
Macae 2 Bonsucesso 2 +1.2
-1.2
+0.0
Bangu 1 Volta Redonda 1 +0.7
-0.7
+0.1
Tigres do Brasil 0 Vasco da Gama 2 -0.3
+0.3
-0.1
America 1 Boavista 1 -0.1
+0.1
Boavista 1 Volta Redonda 1 +0.0
Week of 2/27100.0*Chance in playoffs100.0*Grupo D100.0*Average seed
Friburguense 1 Fluminense 2 +30.1
-30.1
+0.7
Portuguesa 0 America 1 +9.6
-9.6
+0.2
Flamengo 5 Resende 0 +5.1
-5.1
+0.2
Volta Redonda 3 Macae 1 +3.3
-3.3
+0.1
Bangu 1 Madureira 0 -3.2
+3.2
-0.1
Cabofriense 2 Tigres do Brasil 0 -3.0
+3.0
-0.2
Bonsucesso 1 Boavista 2 -0.1
+0.1
Week of 3/5100.0*Chance in playoffs100.0*Grupo D100.0*Average seed
Fluminense 1 America 0 In
No
+0.8
Volta Redonda 2 Cabofriense 1 +8.7
-8.7
+0.1
Friburguense 2 Portuguesa 1 +6.1
-6.1
+0.1
Flamengo 3 Bangu 1 +0.2
Points
Chance Will Make Playoffs

Lottery

Why are you looking down here? We just made the playoffs!

Big Games

Week of 2/20100.0*Lottery seed
Botafogo 2 Fluminense 0 +1.5
Fluminense 1 Flamengo 2 +1.4
Portuguesa 3 Bonsucesso 1 +0.2
Botafogo 2 Cabofriense 1 -0.1
Tigres do Brasil 1 Resende 1 -0.1
Bangu 1 Volta Redonda 1 -0.1
Cabofriense 0 Flamengo 1 -0.1
Tigres do Brasil 0 Vasco da Gama 2 +0.1
Resende 1 Friburguense 1 -0.1
Madureira 2 Portuguesa 1 -0.1
Madureira 1 Macae 0 -0.1
Macae 2 Bonsucesso 2 -0.1
Boavista 1 Volta Redonda 1 -0.1
Vasco da Gama 2 Friburguense 2 +0.0
Week of 2/27100.0*Lottery seed
Friburguense 1 Fluminense 2 -1.6
Portuguesa 0 America 1 -0.2
Flamengo 5 Resende 0 -0.2
Cabofriense 2 Tigres do Brasil 0 +0.2
Bangu 1 Madureira 0 +0.2
Bonsucesso 1 Boavista 2 +0.1
Volta Redonda 3 Macae 1 -0.0
Week of 3/5100.0*Lottery seed
Fluminense 1 America 0 -2.0
Flamengo 3 Bangu 1 -0.5
Friburguense 2 Portuguesa 1 -0.1
Resende 0 Madureira 0 -0.0
Volta Redonda 2 Cabofriense 1 -0.0