How are these numbers calculated?

Big Games

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

Friday100.0*Average seed
San Antonio 2 Texas 4 +0.9
Tucson 3 San Diego 2 -0.5
Saturday100.0*Average seed
Texas 3 San Antonio 4 (so)-1.5
Tucson 6 San Diego 3 -0.5
SundayNone
Points
Chance Will Make Playoffs