On July 12, 2019, Ryōta Murata and Rob Brant met again in an immediate rematch.
Murata came in to the fight on a 1-fight losing streak with a 68% KO rate, and was fighting after a gap of 8 months and 22 days. Brant was on a 3-fight win streak with a 65% KO rate, and fighting after a layoff of 4 months and 27 days.
Ryōta Murata made very easy work of Rob Brant in the rematch, stopping the champion via TKO in the 2nd. Murata improves his record to 15-2 (12 KOs), while Brant adds a loss to his record at 25-2.
On October 22, 2017, Ryōta Murata and Hassan N'Dam N'Jikam met again in an immediate rematch.
Murata came in to the fight on a 1-fight losing streak with a 69% KO rate, and was fighting after a gap of 5 months and 2 days. N'Jikam was on a 5-fight win streak with a 55% KO rate, and fighting after a layoff of 5 months and 2 days.
In the rematch, the champion refused to continue the fight in the 7th round, and Ryōta Murata is crowned the new WBA (Regular) middleweight world champion — in his first world-title fight. Murata improves his record to 13-1 (10 KOs), while N'Jikam adds a loss to his record at 36-3.
On December 23, 2019, the 33-year-old WBA (Regular) middleweight world champion, Ryōta Murata (15-2, 12 KOs), faced a 24-year-old Canadian boxer Steven Butler (28-1-1, 24 KOs), in a title defense fight.
Murata came in to the fight on a 1-fight win streak with a 70% KO rate, and was fighting after a gap of 5 months and 11 days. Butler was on a 10-fight win streak with a 80% KO rate, and fighting after a layoff of 2 months and 27 days.
Ryōta Murata stopped Steven Butler via TKO in the 5th round of the 12-round world-title fight, and successfully defended his WBA (Regular) middleweight title. Murata improves his record to 16-2 (13 KOs), while Butler adds a loss to his record at 28-2-1.
On April 15, 2018, the 32-year-old WBA (Regular) middleweight world champion, Ryōta Murata (13-1, 10 KOs), faced Emanuele Blandamura, in a title defense fight.
Murata came in to the fight on a 1-fight win streak with a 71% KO rate, and was fighting after a gap of 5 months and 24 days.
Ryōta Murata stopped Emanuele Blandamura via TKO in the 8th round of the 12-round world-title fight, and successfully defended his WBA (Regular) middleweight title. Murata improves his record to 14-1 (11 KOs)
On July 23, 2016, a 30-year-old Ryōta Murata (10-0, 7 KOs) and George Tahdooahnippah met in the ring.
Murata came in to the fight on a 10-fight win streak with a 70% KO rate, and was fighting after a gap of 2 months and 9 days.
Ryōta Murata stopped George Tahdooahnippah via TKO in the 1st round. Murata improves his record to 11-0 (8 KOs)
On December 30, 2016, a 30-year-old Ryōta Murata (11-0, 8 KOs) and Bruno Sandoval met in the ring.
Murata came in to the fight on a 11-fight win streak with a 72% KO rate, and was fighting after a gap of 5 months and 7 days.
Ryōta Murata stopped Bruno Sandoval via KO in the 3rd round. Murata improves his record to 12-0 (9 KOs)
On May 20, 2017, 31-year-old Ryōta Murata (12-0, 9 KOs) and 33-year-old Hassan N'Dam N'Jikam (35-2, 21 KOs) fought for the vacant WBA (Regular) middleweight title.
Murata came in to the fight on a 12-fight win streak with a 75% KO rate, and was fighting after a gap of 4 months and 20 days. N'Jikam was on a 4-fight win streak with a 56% KO rate, and fighting after a layoff of 5 months and 3 days.
Hassan N'Dam N'Jikam defeated Ryōta Murata via split decision . N'Jikam improves his record to 36-2, while Murata adds a loss to his record at 12-1.
On October 20, 2018, the 32-year-old WBA (Regular) middleweight world champion, Ryōta Murata (14-1, 11 KOs), faced a 28-year-old American boxer Rob Brant (23-1, 16 KOs), in a title defense fight.
Murata came in to the fight on a 2-fight win streak with a 73% KO rate, and was fighting after a gap of 6 months and 5 days. Brant was on a 1-fight win streak with a 66% KO rate, and fighting after a layoff of 7 months and 2 days.
Rob Brant defeated Ryōta Murata via unanimous decision and wins the WBA (Regular) title — in his first world-title fight. Brant improves his record to 24-1, while Murata adds a loss to his record at 14-2.
On January 30, 2016, a 30-year-old Ryōta Murata (8-0, 5 KOs) and Gastón Vega met in the ring.
Murata came in to the fight on a 8-fight win streak with a 62% KO rate, and was fighting after a gap of 2 months and 23 days.
Ryōta Murata stopped Gastón Vega via KO in the 2nd round. Murata improves his record to 9-0 (6 KOs)
On November 7, 2015, a 29-year-old Ryōta Murata (7-0, 5 KOs) and Gunnar Jackson met in the ring.
Murata came in to the fight on a 7-fight win streak with a 71% KO rate, and was fighting after a gap of 6 months and 6 days.
Ryōta Murata defeated Gunnar Jackson via unanimous decision in the 10-round fight. Murata improves his record to 8-0