Kammala jumla mai zuwa: Ya karya shingen 2:10 a 2011 Lake Biwa Marathon, yana da mafi kyawun sa har yanzu tare da gudu na 2:09:31 na huɗu. A matsayin daya daga cikin manyan maza na Japan a wannan kakar, an zaba shi don gasar zakarun duniya ta 2011 a Daegu. A farkon bayyanarsa ta kasa da kasa ga Japan ya yi kyau kuma ya ɗauki matsayi na goma a Gasar Marathon ta Duniya. Shi ne na biyu mafi saurin wasan Asiya, bayan abokin aikinsa Hiroyuki Horibata, wanda ya samu lambar azurfa a gasar Marathon ta Duniya ta 2011. A waccan shekarar kuma ya yi tsere mafi kyau na minti 14:04.31 na mita 5000 da minti 29:04.24 na mita 10,000. Komawa tseren Lake Biwa a shekarar 2012 ya gan shi ya gama a daidai wannan matsayi, amma a cikin mafi kyawun sa'o'i 2:08:53 (na biyu Jafananci a bayan Ryo Yamamoto). Wannan wasan kwaikwayon ya sami Nakamoto wani zaɓi na ƙasa da ƙasa kuma ya yi gasa don Japan a wasannin Olympics na London na 2012 wanda ya kasance mafi kyawun wasan Asiya a cikin
Gasar marathon ta maza ta Olympics, ta dauki matsayi na shida tare da gudu na awa 2:11:16.