How are these numbers calculated?

Big Games

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

Week of 6/17100.0*Chance in playoffs100.0*Average seed
White Sox 205 Nationals 268 +11.5
+0.6
Tigers 266 Indians 318 +1.5
Blue Jays 229 Pirates 264 +1.5
Americans 285 Red Sox 343 -0.4
Phillies 200 Rays 212 -0.3
If winner is:HomeHome OTHome SOAway SOAway OTAway
Week of 6/24100.0*Chance in playoffs100.0*Average seed
Nationals vs Pirates+10.7+9.2+9.1-8.8-8.7-10.8
+0.6+0.5+0.5-0.5-0.5-0.6
Rays vs Twins-1.8-1.3-1.3+1.6+1.5+1.7
White Sox vs Blue Jays+1.6+1.2+1.3-1.3-1.1-1.6
Red Sox vs Indians-1.6-1.2-1.1+1.1+1.1+1.6
-0.1-0.1-0.1+0.0+0.1+0.1
Phillies vs Brewers-0.7-0.6-0.7+0.7+0.6+0.7
Americans vs Tigers+0.2*+0.1*+0.1*+0.0*+0.0-0.2

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

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
179-0In99113,811
168-1In840160113,110
157-2In501471451,442
146-3100.0%163701001,051,709
135-497.02257373001,580,157
124-565.2001748286001,580,584
113-611.001103237183001,052,279
102-70.10021335351310451,935
91-8Out00320402970113,020
80-9Out011036421213,897
Total:67.1%8133241385321006,421,944
Games Above .500
Chance Will Make Playoffs