How are these numbers calculated?

Big Games

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

Week of 10/20100.0*Average seed
Portland 27 Texas 56 +0.2
Los Angeles 45 Boston 52 +0.1
Wisconsin 30 Iowa 55 -0.1
Week of 10/26100.0*Average seed
Texas 52 Vicenza 41 +0.1
Iowa 37 North Dakota 34 -0.1
Week of 11/2100.0*Average seed
Los Angeles 40 Iowa 43 -0.4
Texas 36 North Dakota 30 +0.1
Games Above .500
Chance Will Make Playoffs