On August 19, 2020, a 25-year-old Ryota Yamauchi (6-1, 5 KOs) and Satoru Todaka met in the ring in a flyweight bout.
Yamauchi came in to the fight on a 2-fight win streak with a 71% KO rate, and was fighting after a gap of 6 months and 5 days.
Ryota Yamauchi stopped Satoru Todaka via RTD in the 3rd round. Yamauchi improves his record to 7-1 (6 KOs)
On June 24, 2021, a 26-year-old Ryota Yamauchi (7-1, 6 KOs) and Yuta Nakayama met in the ring in a flyweight bout.
Yamauchi came in to the fight on a 3-fight win streak with a 75% KO rate, and was fighting after a gap of 10 months and 5 days.
Ryota Yamauchi stopped Yuta Nakayama via TKO in the 7th round. Yamauchi improves his record to 8-1 (7 KOs)
On February 14, 2020, a 25-year-old Ryota Yamauchi (5-1, 4 KOs) and MJ Bo met in the ring.
Yamauchi came in to the fight on a 1-fight win streak with a 66% KO rate, and was fighting after a gap of 5 months and 22 days.
Ryota Yamauchi stopped MJ Bo via KO in the 2nd round. Yamauchi improves his record to 6-1 (5 KOs)
On October 1, 2018, a 23-year-old Ryota Yamauchi (3-0, 3 KOs) and Rio Nainggolan met in the ring.
Yamauchi came in to the fight on a 3-fight win streak with a 100% KO rate, and was fighting after a gap of 4 months and 24 days.
Ryota Yamauchi stopped Rio Nainggolan via RTD in the 3rd round. Yamauchi improves his record to 4-0 (4 KOs)
On May 7, 2018, a 23-year-old Ryota Yamauchi (2-0, 2 KOs) and Yota Hori met in the ring.
Yamauchi came in to the fight on a 2-fight win streak with a 100% KO rate, and was fighting after a gap of 4 months and 18 days.
Ryota Yamauchi stopped Yota Hori via TKO in the 5th round. Yamauchi improves his record to 3-0 (3 KOs)
On December 19, 2017, a 22-year-old Ryota Yamauchi (1-0, 1 KO) and Lester Abutan met in the ring.
Yamauchi came in to the fight on a 1-fight win streak with a 100% KO rate, and was fighting after a gap of 5 months and 19 days.
Ryota Yamauchi stopped Lester Abutan via TKO in the 4th round. Yamauchi improves his record to 2-0 (2 KOs)
On April 9, 2022, a 27-year-old Ryota Yamauchi (8-1, 7 KOs) got a shot at the flyweight WBO title held by 24-year-old fellow Japanese boxer Junto Nakatani (22-0, 17 KOs).
Yamauchi came in to the fight on a 4-fight win streak with a 77% KO rate, and was fighting after a gap of 9 months and 16 days. Nakatani was on a 22-fight win streak with a 77% KO rate, and fighting after a layoff of 6 months and 30 days.
Junto Nakatani stopped Ryota Yamauchi via TKO in the 8th round of the 12-round world-title fight, and successfully defended his WBO flyweight title. Nakatani improves his record to 23-0 (18 KOs), while Yamauchi adds a loss to his record at 8-2.
On August 23, 2019, a 24-year-old Ryota Yamauchi (4-1, 4 KOs) and Alphoe Dagayloan met in the ring.
Yamauchi came in to the fight on a 1-fight losing streak with a 80% KO rate, and was fighting after a gap of 4 months and 24 days.
Ryota Yamauchi defeated Alphoe Dagayloan via majority decision in the 8-round fight. Yamauchi improves his record to 5-1
On March 30, 2019, a 24-year-old Ryota Yamauchi (4-0, 4 KOs) and Wulan Tuolehazi met in the ring in a flyweight bout.
Yamauchi came in to the fight on a 4-fight win streak with a 100% KO rate, and was fighting after a gap of 5 months and 29 days.
Ryota Yamauchi lost to Wulan Tuolehazi via unanimous decision in the 12-round flyweight fight, and adds an loss to his record at 4-1.
On June 30, 2017, a 22-year-old Ryota Yamauchi (debutant) and Supaluek Noiwaengphim met in the ring.
Ryota Yamauchi stopped Supaluek Noiwaengphim via KO in the 2nd round, making a successful professional debut. Yamauchi advances his record to 1-0 (1 KO)