How are these numbers calculated? (show)

Points Behind 1st  (Full Screen)
Chance Will Win Championship  (Full Screen)
RaceFinishStartLapsLeadPointsBonusTotal
GAINSCO Auto Insurance Indy 30016231871414
Honda Grand Prix of St. Petersburg1622821414
Indy Japan 300
Toyota Grand Prix of Long Beach201951212
RoadRunner Turbo Indy 30017271931313
92nd Indianapolis 500182819431212
ABC Supply Company A.J. Foyt 22523232181212
Bombardier Learjet 55018222231212
Iowa Corn Indy 25019241921212
SunTrust Indy Challenge17201431313
Camping World Watkins Glen Grand Prix713602626
Firestone Indy 20010201702020
Honda 20024196111212
Rexall Edmonton Indy2010851212
Meijer Indy 30017231951313
Motorola Indy 3001012802020
Detroit Indy Grand Prix1519861515
Peak Antifreeze Indy 30021271811212
2,3554244+0=244