He is a two-time Japanese men's champion, playing second for the SC Karuizawa team, skipped by Riku Yanagisawa.

In the playoffs, they lost the 1 vs. 2 game to Hayato Sato's Sapporo International University team.

This was still good enough to make it to the playoffs, but they lost the semifinal to Canada, and the bronze medal game to the United States.

[4] The team would tour Canada for over three months from August to December, and were based out of Kelowna, British Columbia,[5] where they trained with their coach Bob Ursel.

At just the age of 16, Yamamoto, was dubbed a "fan favourite" of the crowds at the World Championships in Ottawa.