Cika wannan jumla:
2000 Sa'o'i 24 na Le Mans Kageyama ta Team Dragon tawagar gama shida overall a cikin Panoz LMP-1 Roadster-S. Kageyama kuma ya sake dawowa a cikin JGTC kuma ya gama na biyu a maki a cikin Skyline GT-R. A shekara ta 2001 Kageyama ya fadi zuwa na bakwai a JGTC kuma ya koma Formula Nippon, ya gama na tara a maki. 2002 ya kasance lokacin JGTC mai ban takaici tare da Kageyama kawai ya gama 28th a maki. A cikin 2003, duk da haka, ya sake komawa zuwa na biyar a cikin maki a cikin NISMO Skyline GT-R. A cikin 2004 ya kasance tare da ƙungiyar NISMO yayin da suka canza motoci zuwa sabon Nissan Fairlady Z. Kageyama ya gama na tara a maki. A cikin 2005 ya sauka zuwa rukunin GT300 har yanzu yana tuka Fairlady Z, amma ya canza ƙungiyoyi zuwa Endless Sports. Ya gama na shida a GT300. Ya inganta zuwa na huɗu a cikin 2006 a cikin mota ɗaya, ƙungiya, da aji. Wannan haɗin ya gama na biyar a cikin maki a 2007.