How are these numbers calculated? (show)

Points Behind 1st  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusTotal
GAINSCO Auto Insurance Indy 300931982222
Honda Grand Prix of St. Petersburg1124831919
Indy Japan 3001581031515
Toyota Grand Prix of Long Beach
RoadRunner Turbo Indy 300852002424
92nd Indianapolis 50021311801212
ABC Supply Company A.J. Foyt 22517182221313
Bombardier Learjet 55012152261818
Iowa Corn Indy 2505182503030
SunTrust Indy Challenge248291212
Camping World Watkins Glen Grand Prix1922471212
Firestone Indy 2002222451212
Honda 200182384111212
Rexall Edmonton Indy12189131818
Meijer Indy 30020101361212
Motorola Indy 3002024791212
Detroit Indy Grand Prix1017872020
Peak Antifreeze Indy 30013151991717
2,25914280+0=280