On May 19, 2018, a 37-year-old Kohei Kono (33-11-1, 14 KOs) and a 27-year-old Australian boxer Jason Moloney (16-0, 13 KOs) met in the ring in a bantamweight bout.
Kono came in to the fight on a 1-fight losing streak with a 31% KO rate, and was fighting after a gap of 7 months and 12 days. Moloney was on a 16-fight win streak with a 81% KO rate, and fighting after a layoff of 2 months and 25 days.
Jason Moloney stopped Kohei Kono via RTD in the 6th round. Moloney improves his record to 17-0 (14 KOs), while Kono adds a loss to his record at 33-12-1.
On October 7, 2017, a 36-year-old Kohei Kono (33-10-1, 14 KOs) and Rex Tso met in the ring in a super-flyweight bout.
Kono came in to the fight on a 1-fight win streak with a 31% KO rate, and was fighting after a gap of 2 months and 14 days.
Kohei Kono lost to Rex Tso via technical decision in the 12-round super-flyweight fight, and adds an loss to his record at 33-11-1.
On December 30, 2016, a 36-year-old Kohei Kono (32-9-1, 13 KOs) got a shot at the super-flyweight WBO title held by 23-year-old fellow Japanese boxer Naoya Inoue (11-0, 9 KOs).
Kono came in to the fight on a 1-fight losing streak with a 31% KO rate, and was fighting after a gap of 3 months and 30 days. Inoue was on a 11-fight win streak with a 81% KO rate, and fighting after a layoff of 3 months and 26 days.
Naoya Inoue stopped Kohei Kono via TKO in the 6th round of the 12-round world-title fight, and successfully defended his WBO super-flyweight title. Inoue improves his record to 12-0 (10 KOs), while Kono adds a loss to his record at 32-10-1.
On August 31, 2016, the 35-year-old WBA super-flyweight world champion, Kohei Kono (32-8-1, 13 KOs), faced a 30-year-old Panamanian boxer Luis Concepción (34-4, 24 KOs), in a title defense fight.
Kono came in to the fight on a 2-fight win streak with a 31% KO rate, and was fighting after a gap of 4 months and 4 days. Concepción was on a 2-fight win streak with a 63% KO rate, and fighting after a layoff of 8 months and 14 days.
Luis Concepción defeated Kohei Kono via unanimous decision and wins the WBA title — in his first world-title fight. Concepción improves his record to 35-4, while Kono adds a loss to his record at 32-9-1.
On May 6, 2013, the 32-year-old WBA super-flyweight world champion, Kohei Kono (28-7, 11 KOs), faced a 31-year-old Venezuelan boxer Liborio Solís (14-3-1, 7 KOs), in a title defense fight.
Kono came in to the fight on a 3-fight win streak with a 31% KO rate, and was fighting after a gap of 4 months and 6 days. Solís was on a 5-fight win streak with a 38% KO rate, and fighting after a layoff of 1 year and 8 days.
Liborio Solís defeated Kohei Kono via majority decision and successfully defended his WBA super-flyweight title. Solís improves his record to 15-3-1, while Kono adds a loss to his record at 28-8.
On October 10, 2011, a 30-year-old Kohei Kono (25-6, 9 KOs) and Yohei Tobe met in the ring.
Kono came in to the fight on a 2-fight losing streak with a 29% KO rate, and was fighting after a gap of 6 months and 1 day.
Kohei Kono lost to Yohei Tobe via unanimous decision in the 8-round fight, and adds an loss to his record at 25-7.
On April 9, 2011, a 30-year-old Kohei Kono (25-5, 9 KOs) and Yota Sato met in the ring in a super-flyweight bout.
Kono came in to the fight on a 1-fight losing streak with a 30% KO rate, and was fighting after a gap of 6 months and 20 days.
Kohei Kono lost to Yota Sato via unanimous decision in the 10-round super-flyweight fight, and adds an loss to his record at 25-6.
On September 20, 2010, 29-year-old Kohei Kono (25-4, 9 KOs) and 30-year-old Tomás Rojas (33-12-1, 23 KOs) fought for the vacant WBC super-flyweight title.
Kono came in to the fight on a 4-fight win streak with a 31% KO rate, and was fighting after a gap of 4 months and 3 days. Rojas was on a 2-fight win streak with a 50% KO rate, and fighting after a layoff of 3 months and 1 day.
Tomás Rojas defeated Kohei Kono via unanimous decision . Rojas improves his record to 34-12-1, while Kono adds a loss to his record at 25-5.
On September 15, 2008, 27-year-old Kohei Kono (21-3, 7 KOs) and Nobuo Nashiro fought for the vacant WBA super-flyweight title.
Kono came in to the fight on a 7-fight win streak with a 29% KO rate, and was fighting after a gap of 6 months and 30 days.
Kohei Kono was defending his super-flyweight titles and, fighting for the super-flyweight WBA titles against Nobuo Nashiro and lost via split decision in the 12-round super-flyweight fight, and adds an loss to his record at 21-4.
On July 16, 2005, a 24-year-old Kohei Kono (14-2, 4 KOs) and Teppei Kikui met in the ring for the 2nd time,.
Kono came in to the fight on a 6-fight win streak with a 25% KO rate, and was fighting after a gap of 5 months and 15 days.
Kohei Kono lost to Teppei Kikui via unanimous decision in the 8-round fight, and adds an loss to his record at 14-3.
On December 22, 2002, a 22-year-old Kohei Kono (8-1, 2 KOs) and Daigo Nakahiro met in the ring.
Kono came in to the fight on a 8-fight win streak with a 22% KO rate, and was fighting after a gap of 1 month and 13 days.
Kohei Kono lost to Daigo Nakahiro via unanimous decision in the 6-round fight, and adds an loss to his record at 8-2.
On November 22, 2000, a 19-year-old Kohei Kono (debutant) and Toshiaki Nitta met in the ring.
Kohei Kono lost to Toshiaki Nitta via majority decision in the 4-round fight, making an unsuccessful professional debut.