How are these numbers calculated? (show)

Points Behind 1st  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusTotal
GAINSCO Auto Insurance Indy 30018191491212
Honda Grand Prix of St. Petersburg5188333030
Indy Japan 300
Toyota Grand Prix of Long Beach48833232
RoadRunner Turbo Indy 3002525541010
92nd Indianapolis 50015292001515
ABC Supply Company A.J. Foyt 2251682221414
Bombardier Learjet 55023202101212
Iowa Corn Indy 25017172421313
SunTrust Indy Challenge262661010
Camping World Watkins Glen Grand Prix2116441212
Firestone Indy 2002019661212
Honda 200261881010
Rexall Edmonton Indy1611901414
Meijer Indy 30022241241212
Motorola Indy 3002127791212
Detroit Indy Grand Prix
Peak Antifreeze Indy 300
1,6603220+0=220