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
Reds 261.5 Cubs 224.5 -1.7
-0.1
Brewers 260.5 Pirates 295.5 +0.8
+0.1
Phillies 302 Braves 202 -0.5
-0.0
Nationals 401 Mets 277.5 -0.4
-0.0
Week of 8/19100.0*Chance in playoffs100.0*Average seed
Reds 182.5 Pirates 115.5 -10.2
-0.8
Phillies 137.5 Mets 174 +3.5
+0.2
Nationals 96 Braves 128 +2.9
+0.2
If winner is:HomeTieAway
Week of 8/26100.0*Chance in playoffs100.0*Average seed
Pirates vs Cubs+0.7-2.1-2.2
Brewers vs Reds+0.5+0.0-0.0

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
141-0-0In10012,930,589
13.50-0-1In793339,394
130-1-0In05953,744,545
Total:In7612317,014,528
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
Twins 300 Royals 340.5 -0.3
Astros 138 Rangers 277.5 -0.3
Brewers 260.5 Pirates 295.5 -0.1
Reds 261.5 Cubs 224.5 +0.1
Phillies 302 Braves 202 +0.0
Nationals 401 Mets 277.5 +0.0
Week of 8/19100.0*Lottery seed
Reds 182.5 Pirates 115.5 +1.0
Phillies 137.5 Mets 174 -0.1
Nationals 96 Braves 128 -0.1
If winner is:HomeTieAway
Week of 8/26100.0*Lottery seed
Pirates vs Cubs-0.2+0.7+0.7
Tigers vs Twins-0.7-0.6+0.0
Brewers vs Reds-0.6-0.6+0.0
Astros vs Angels-0.3-0.2+0.2

What If

100100100100100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L-T123456789101112131415161718192021222324
141-0-09305012
13.50-0-1023860
130-1-0023860
Total:7234724