Yamamoto playing for Júbilo in 2010
|Full name||Kosuke Yamamoto|
|Date of birth||29 October 1989|
|Place of birth||Hamamatsu, Japan|
|Height||1.77 m (5 ft 10 in)|
|2014–2015||→ Albirex Niigata (loan)||53||(9)|
* Senior club appearances and goals counted for the domestic league only and correct as of 1 January 2015.
Yamamoto, who was born in Hamamatsu, Shizuoka Prefecture, started his career at Seirei Junior Football Club before transferring to Júbilo Iwata's youth academy in 2002. He won himself a contract and was promoted to the senior squad at the end of the 2007 season after progressing through the youth ranks at the club and completing his two-year apprenticeship. He made his first team debut for the Júbilo in the J1 League match on 3 September 2006, when he came on as a late substitute for Robert Cullen in the 3–2 defeat to Oita Trinita at Ōita Bank Dome.
On 16 June 2014, Yamamoto completed a move to Albirex Niigata on loan thus being reunited with former coach Masaaki Yanagishita. He made his Albirex debut on 19 July, starting against Urawa Red Diamonds, before being substituted by Sho Naruoka in the 84th minute. He scored his first goal for Albirex in a 3–0 win over Kawasaki Frontale at Big Swan on 5 October 2014. Yamamoto's second league goal for Albirex came in a 3–1 win over FC Tokyo at Ajinomoto Stadium on 22 November, scoring the winning goal for the away side. Following a successful debut campaign, Yamamoto agreed to a second season on loan at Albirex Niigata.
- ジュビロ磐田ユース３選手の新加入内定について (in Japanese). Júbilo Iwata. 26 July 2007. Retrieved 26 November 2014.
- "2006 J.LEAGUE Division 1 1st Day 24th Sec". J.LEAGUE. Retrieved 26 November 2014.
- ジュビロ磐田から山本 康裕選手 期限付き移籍加入のお知らせ (in Japanese). Albirex Niigata. 16 June 2014. Retrieved 25 July 2015.
- "2014 J.LEAGUE Division 1 1st Day 27th Sec". J-League. 5 October 2014. Retrieved 25 July 2015.
- "2014 J.LEAGUE Division 1 1st Day 32nd Sec". J-League. 5 October 2014. Retrieved 25 July 2015.
- 山本 康裕選手 期限付き移籍延長のお知らせ (in Japanese). Albirex Niigata. 7 January 2015. Retrieved 25 July 2015.
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