Kohei Kono has 12 losses against 12 opponents on his boxing record. For a list of Kono's best fights, refer to "Best fights of Kohei Kono".
On May 19, 2018 Kohei Kono faced off against Jason Moloney in a bantamweight bout at age 37. He was coming in with a record of 33-12-1 (14), and Moloney was 27 years old and with a record of 16-0 (13). Kono lost the fight via 6th-round retirement.
On October 7, 2017 Kohei Kono faced off against Rex Tso in a super-flyweight bout at age 36. He was coming in with a record of 33-11-1 (14). Kono lost the fight via 7-round technical decision.
On December 30, 2016 Kohei Kono fought Naoya Inoue in a super-flyweight world-title fight for Inoue's WBO title. Kono was 36 years old and with a record of 32-10-1 (13), and Inoue was 23 years old and with a record of 11-0 (9). Kono lost the fight via 6th-round KO.
On August 31, 2016 Kohei Kono met Luis Concepción in a super-flyweight (WBA) world-title defense fight. Kono was 35 years old and with a record of 32-9-1 (13), and Concepción was 30 years old and with a record of 34-4 (24). Kono lost the fight via 12-round unanimous decision and lost the title.
On May 6, 2013 Kohei Kono met Liborio Solís in a super-flyweight (WBA) world-title defense fight. Kono was 32 years old and with a record of 28-8 (11), and Solís was 31 years old and with a record of 14-3-1 (7). Kono lost the fight via 12-round majority decision and lost the title.
On October 10, 2011 Kohei Kono faced off against Yohei Tobe in a super-flyweight bout at age 30. He was coming in with a record of 25-7 (9). Kono lost the fight via 8-round unanimous decision.
On April 9, 2011 Kohei Kono faced off against Yota Sato in a super-flyweight bout at age 30. He was coming in with a record of 25-6 (9). Kono lost the fight via 10-round unanimous decision.
On September 20, 2010 Kohei Kono fought Tomás Rojas in a super-flyweight world-title fight for the WBC title. Kono was 29 years old and with a record of 25-5 (9), and Rojas was 30 years old and with a record of 33-12-1 (23). Kono lost the fight via 12-round unanimous decision.
On September 15, 2008 Kohei Kono fought Nobuo Nashiro in a super-flyweight world-title fight for the WBA title. Kono was 27 years old and with a record of 21-4 (7). Kono lost the fight via 12-round split decision.
On July 16, 2005 Kohei Kono faced off against Teppei Kikui at age 24. He was coming in with a record of 14-3 (4). Kono lost the fight via 8-round unanimous decision.
On December 22, 2002 Kohei Kono faced off against Daigo Nakahiro at age 22. He was coming in with a record of 8-2 (2). Kono lost the fight via 6-round unanimous decision.
On November 22, 2000 Kohei Kono faced off against Toshiaki Nitta at age 19. He was coming in with a record of 0-1 (0). Kono lost the fight via 4-round majority decision.