Can someone explain xg to me?

BBC says we got 1.48 User Posted Link (sounds about right, Musaba 's was a worldie).



Sportinglife say it was 3.04 (including 0.97 for a Mattson chance I don't remember?) User Posted Link

I get that different people will have slightly different scores but how is this level possible?

Posted By: Kangol Canary, Sep 7, 07:31:24