He came to the attention of the Japanese boxign world back in 2011 but a loss to Kosuke Saka in 2015 ended his unbeaten run, and a loss to Silvester Lopez this year further damaged his hopes of being a star in the ring. Despite those losses he did still have the style and in ring personality to make a career out of boxing, even if he wasn't going to become a star.
Sadly what has been a bigger problem has been his out of the ring issues, which included an arrest last year for an assault, and an issue with drink driving this year.
The assault saw his previous gym, Teiken Osaka, end ties with him and now his latest gym, Green Tsuda, have done the same, apologising for his actions, fining him and then ending their contract with him.
Kyoguchi has himself handed in a retirement notice to the JBC, though it is set to be reviewed by a special committee within the JBC, with his retirement expected to be accepted by the JBC in the near future.
For those unaware Ryuto Kyoguchi is the older brother of current IBF Minimumweight champion Hiroto Kyoguchi (8-0, 6) [京口 紘人], who left Osaka to begin his career, and has had amazing success already winning the OPBF and IBF titles. Making some wonder what could have been for Ryuto if he too had committed himself fully to the sport.
(Image, of Masaya Motoishi the chairman of Green Tsuda gym, courtesy of Boxmob.jp)