Kammala wannan jumla: Groff ya shiga 1992 ba tare da cikakken lokaci ba. Ya cancanci mota ta biyu don Walker Racing a cikin
1992 Indianapolis 500 amma lokacin da direba na yau da kullun Scott Goodyear ya kasa cancanta, ya maye gurbin Groff. Groff ya fara farawa shida a wannan kakar don Euromotorsport (tsere biyu), Walker (tsere ɗaya), da Foyt (tsere uku) kuma ya gama na 23 a maki.