別府大分毎日マラソン
Nakamoto set a half marathon best of 1:02:29 hours at the Kagawa Marugame Half Marathon in 2009, He knocked one second off his marathon best with a top ten finish at the Tokyo Marathon in March. He went under that time twice in his two marathon outings in 2010, running 2:11:42 at the Beppu-Ōita Marathon and 2:12:38 at the Amsterdam Marathon.