Ramba uchiverenga ndima iyi - Muna 1970, Bartlett akaenda kuUnited States kunokwikwidza mumakwikwi eUSAC Championship (aka Indy Car), achiedza uye achitadza kupinda muIndianapolis 500
. Bartlett akakwikwidza mune dzimwe nhangemutange nhatu dzeIndy Car, asi akakundikana kupedza.