How are these numbers calculated?

Big Games

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

Week of 2/18100.0*Chance wins title100.0*Average seed
Canada 34 United States 51 No
+0.1
Chile 10 Argentina XV 45 No
-0.4
Week of 2/25100.0*Chance wins title100.0*Average seed
Chile 9 United States 57 -0.4
Argentina XV 79 Brazil 7 +0.2
Week of 3/3100.0*Chance wins title100.0*Average seed
Brazil 24 Canada 23 -0.2

What If

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

100100100100100100
If finish:ChanceChance will finish season at seed
TPW-OTLDwins title123456Count
0-4No10015,632,161,844*
Total:No10015,632,161,844

* Row combines multiple less frequent records.

Points
Chance Will Win Championship