Mezue ahịrịokwu na-esonụ: Groff banyere n'afọ 1992 n'enweghị onye na-agba ịnyịnya oge nile. O nwetara ụgbọala nke abụọ maka Walker Racing na
1992 Indianapolis 500 mana mgbe onye ọkwọ ụgbọala oge niile Scott Goodyear enweghị ike iru eru, ọ dochiri Groff. Groff bidoro isii n'oge ahụ maka Euromotorsport (agbụrụ abụọ), Walker (agbụrụ 1), na Foyt (agbụrụ atọ) wee kwụsị nke 23 na isi ihe.