How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Sunday, 7/5100.0*Average seed
Tahiti 2 Vanuatu 1 +0.0
Monday, 7/6100.0*Average seed
Vanuatu 46 Micronesia 0 -0.5
Solomon Islands 1 Papua New Guinea 2 +0.0
Tuesday, 7/7None
Points
Chance Will Make Playoffs