How are these numbers calculated?

Big Games

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

Friday100.0*Average seed
Providence 2 Worcester 5 -0.5
Hartford 3 Bridgeport 2 -0.0
Syracuse 4 Adirondack 5 (ot)-0.0
Saturday100.0*Average seed
Portland 3 Providence 2 -0.3
Manchester 4 Worcester 2 +0.2
Syracuse 2 Bridgeport 4 +0.2
Sunday100.0*Average seed
Providence 5 Manchester 1 +0.4
Worcester 4 Portland 5 +0.4
Points
Chance Will Make Playoffs