How are these numbers calculated?

Big Games

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

If winner is:HomeDrawAway
Week of 10/1100.0*Average seed
South Africa vs Australia-0.3+0.2+0.2
Argentina vs New Zealand-0.2-0.0+0.0

What If

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

100100100100
If finish:ChanceChance will finish season at seed
TPW-OTLDwins titleChampionship1234Count
14-16NoNo10088,452,959,876*
121-010NoNo95581,255,272,275
0-002NoNo100445,996,942
100-011NoNo871306,155,083,536
80-020NoNo425821,125,579,459
Total:NoNo8776197,434,892,088

* Row combines multiple less frequent records.

Points
Chance Will Win Championship