How are these numbers calculated? (show)

Points Behind 1st  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishBehindPoints
Qatar1843.375
Australia1945.078
Spain
Netherlands2348.878
Monza2571.614
Germany
San Marino2149.173
Czech Republic2354.351
Britain27104.305
Europe
Italy
France
Portugal
0