How are these numbers calculated?

Big Games

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

Tuesday100.0*Chance in playoffs100.0*Average seed
Diamondbacks 9 Braves 12 In
+0.0
Padres 6 Mets 12 -1.3
WednesdayNone
ThursdayNone
Games Above .500
Chance Will Make Playoffs