Mezue ahịrịokwu na-esonụ: N'afọ 1970, Bartlett gara United States ịsọ mpi na USAC Championship (aka Indy Car) usoro, na-anwa ma ghara iru eru maka
Indianapolis 500. Bartlett gbara asọmpi atọ ndị ọzọ n'asọmpi Indy Car, mana o mezughị.