Kammala jumlar da ke gaba: Nakamura ya lashe wasanni da yawa bayan tafiyarsa ta farko zuwa wasannin Olympics, mafi mahimmanci lambar zinare a gasar Olympics ta Olympics.
Gasar Zakarun Duniya ta Judo ta 1997 da nasara uku a jere a rukunin kilo -73 na Gasar Kowace Japan daga 1998-2000. Koyaya, ya kasa wuce zagaye na uku a Gasar Judo ta Duniya ta 1999, kuma ya yi rashin nasara a zagaye na huɗu na Wasannin Olympics na bazara na 2000 da kuma zagaye na uku na sakewa. Ya lashe Kofin Kodokan a cikin rukunin -81 kg a wannan shekarar, amma ya yi rashin nasara a wasan kusa da na karshe da kuma wasan lambar tagulla na Gasar Judo ta Duniya ta 2001 don ya ƙare a matsayi na 5. Nakamura ya yi ritaya a shekara ta 2003 bayan ya lashe gasar zakarun Japan a karo na 5 a shekara ta 2002, kuma ya lashe Kofin Kano Jigoro a shekara ta 2003. Ya fara aiki a matsayin mai koyarwa ga ƙungiyar judo ta Asahi Kasei a cikin 2004, kuma ya yi aiki a matsayin mai horar da 'yan wasan matasa da manyan' yan wasan Japan.