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Kohei Kono had a total of 12 losses in his professional boxing career — five of them in title bouts and seven in non-title bouts. He suffered his first loss in his professional debut against Toshiaki Nitta via 4th round MD. He has been stopped two times and lost 10 times via decision.
Jason Moloney, Rex Tso, Naoya Inoue, Luis Concepción, and Liborio Solís are some of the boxers who have beaten Kono.
This is the first loss in Kohei Kono's career. Kono lost to Toshiaki Nitta via 4 round majority decision on in a non-title bout. He was 19 years old and it was his first professional boxing fight.
On Kono lost to Daigo Nakahiro via 6 round unanimous decision in a non-title bout. He was 22 years old with a record of 8-1.
On Kono lost to Teppei Kikui in a rematch via 8 round unanimous decision in a non-title bout. He was 24 years old with a record of 14-2.
On Kono lost to Nobuo Nashiro via 12 round split decision. He and Nashiro were fighting for the vacant super-flyweight WBA title. He was 27 years old with a record of 21-3.
On Kono lost to Mexican boxer Tomás Rojas via 12 round unanimous decision. He and Rojas were fighting for the vacant super-flyweight WBC title. He was 29 years old with a record of 25-4. Rojas was 30 years old with a record of 33-12-1.
On Kono lost to Yota Sato via 10 round unanimous decision in a non-title bout. He was 30 years old with a record of 25-5.
On Kono lost to Yohei Tobe via 8 round unanimous decision in a non-title bout. He was 30 years old with a record of 25-6.
On Kono lost to Venezuelan boxer Liborio Solís via 12 round majority decision. He was defending his super-flyweight WBA title, he was 32 years old with a record of 28-7. Solís was 31 years old with a record of 14-3-1.
On Kono lost to Panamanian boxer Luis Concepción via 12 round unanimous decision. He was defending his super-flyweight WBA title, he was 35 years old with a record of 32-8-1. Concepción was 30 years old with a record of 34-4.
On Kono lost to fellow Japanese boxer Naoya Inoue via 6th round TKO. He was fighting for Inoue's super-flyweight WBO title, he was 36 years old with a record of 32-9-1. Inoue was 23 years old with a record of 11-0.
On Kono lost to Rex Tso via 7 round technical decision in a non-title bout. He was 36 years old with a record of 33-10-1.
On Kono lost to Australian boxer Jason Moloney via 6th round RTD in a non-title bout. He was 37 years old with a record of 33-11-1. Moloney was 27 years old with a record of 16-0.