How are these numbers calculated?

Big Games

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

Week of 8/12100.0*Chance in playoffs100.0*Average seed
Brewers 260.5 Pirates 295.5 +6.7
+0.5
Reds 261.5 Cubs 224.5 -3.2
-0.2
Phillies 302 Braves 202 -2.1
-0.1
Nationals 401 Mets 277.5 -2.0
-0.1
Week of 8/19100.0*Chance in playoffs100.0*Average seed
Reds 182.5 Pirates 115.5 -6.2
-0.6
Phillies 137.5 Mets 174 +3.0
+0.1
Nationals 96 Braves 128 +3.0
+0.2
If winner is:HomeTieAway
Week of 8/26100.0*Chance in playoffs100.0*Average seed
Pirates vs Cubs+1.0-0.5-1.0
Brewers vs Reds+0.5-0.5-0.5
Phillies vs Nationals-0.0+0.2-0.0

What If

Chances based on how well the Pirates finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
141-0-0In1002,672,916
13.50-0-1In5149109,089
130-1-0In148512,675,115
Total:In5024265,457,120
Games Above .500
Chance Will Make Playoffs

Lottery

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

Big Games

Week of 8/12100.0*Lottery seed
Brewers 260.5 Pirates 295.5 -0.9
Reds 261.5 Cubs 224.5 +0.2
Astros 138 Rangers 277.5 -0.1
Twins 300 Royals 340.5 -0.1
Phillies 302 Braves 202 +0.1
Nationals 401 Mets 277.5 +0.1
Angels 320.5 Mariners 276 +0.1
Blue Jays 279 Rays 329.5 -0.1
Week of 8/19100.0*Lottery seed
Reds 182.5 Pirates 115.5 +0.8
Nationals 96 Braves 128 -0.2
Phillies 137.5 Mets 174 -0.2
Indians 101.5 Twins 122.5 +0.1
Angels 125.5 Rangers 78 +0.1
Mariners 67 Astros 54.5 -0.1
If winner is:HomeTieAway
Week of 8/26100.0*Lottery seed
Pirates vs Cubs-0.7+0.7+0.7
Astros vs Angels-0.3-0.2+0.3
Tigers vs Twins-0.2-0.2+0.3
Brewers vs Reds-0.2-0.2+0.3
Indians vs Royals+0.1+0.1-0.1

What If

100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L-T123456789101112131415161718192021222324
141-0-05034142
13.50-0-14204135
130-1-04204135
Total:27272819