Mezue ahịrịokwu na-esonụ: Weld meriri na 1963 Knoxville Nationals, ihe omume mbụ na ọsọ ọsọ ọsọ ọsọ. Weld gbara ọsọ na USAC Championship Car usoro na 1965-1972 oge, na 36 ọrụ na-amalite, gụnyere
1970 Indianapolis 500. O mechara n'ime mmadụ iri mbụ ugboro iri na otu, ebe kachasị mma ya bụ n'ọnọdụ nke anọ na 1970 na Sacramento. Ọ bụkwa onye mmeri USAC Sprint Car Series nke 1967. Ọ bụ onye ọkwọ ụgbọ ala ikpeazụ na-anya ụgbọ ala nke a na-eji engine Novi ama ama na Indianapolis Motor Speedway mgbe ọ dara n'oge mgbalị iru eru na 1966.