Mezue ahịrịokwu a:
2000 24 Awa nke Le Mans Kageyama's Team Dragon squad kwụsịrị nke isii n'ozuzu ha na Panoz LMP-1 Roadster-S. Kageyama nwetakwara mmeri na JGTC ma mechie nke abụọ na isi ihe na Skyline GT-R ya. Na 2001 Kageyama dara n'ọkwa nke asaa na JGTC wee laghachi na Formula Nippon, na-emecha nke itoolu na isi ihe. 2002 bụ oge JGTC na-akụda mmụọ nke ukwuu na Kageyama na-emecha 28th na isi ihe. N'afọ 2003, agbanyeghị, ọ laghachiri na nke ise na isi na NISMO Skyline GT-R ya. N'afọ 2004, ọ nọgidere na ndị otu NISMO ka ha gbanwere ụgbọ ala na Nissan Fairlady Z. Kageyama kwụsịrị nke itoolu na isi ihe. N'afọ 2005, ọ gbadara na klas GT300 ka na-anya ụgbọ ala Fairlady Z, mana gbanwere ndị otu na Endless Sports. Ọ gbara onye nke isii na GT300. Ọ ka mma na nke anọ na 2006 n'otu ụgbọ ala, otu, na klaasị. Otu ngwakọta ahụ kwụsịrị nke ise na isi ihe na 2007.