How are these numbers calculated?

Big Games

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

Week of 4/13100.0*Chance wins title100.0*Average seed
FC Groningen 1 Ajax 2 +6.3
+0.1
PSV Eindhoven 1 Twente 1 +3.9
+0.0
Heracles 0 NAC Breda 1 +0.1
Week of 4/20100.0*Chance wins title100.0*Average seed
Vitesse Arnhem 0 PSV Eindhoven 1 No
-0.2
Ajax 5 Heracles 1 +7.3
+0.1
NAC Breda 1 NEC Nijmegen 3 +0.3
Twente 2 Willem II 0 +0.3
Feyenoord 3 Roda JC 0 +0.3
Heerenveen 5 Excelsior 0 +0.3
AZ Alkmaar 1 Sparta 0 +0.2
FC Utrecht 1 FC Groningen 0 +0.2
Points
Chance Will Win Championship