On September 22, 2021, a 29-year-old Masamichi Yabuki (12-3, 11 KOs) got a shot at the WBC light-flyweight title held by 29-year-old fellow Japanese boxer Kenshiro Teraji (18-0, 10 KOs).
Yabuki came in to the fight on a 5-fight win streak with a 73% KO rate, and was fighting after a gap of 8 months and 27 days. Teraji was on a 18-fight win streak with a 55% KO rate, and fighting after a layoff of 4 months and 29 days.
Masamichi Yabuki stopped the champion via TKO in the 10th round of the 12-round world-title fight, winning the first world title of his career, and is crowned the new WBC light-flyweight champion. Yabuki improves his record to 13-3 (12 KOs), while Teraji adds a loss to his record at 18-1.
On July 26, 2020, a 28-year-old Masamichi Yabuki (10-3, 10 KOs) and Tsuyoshi Sato met in the ring in a light-flyweight bout.
Yabuki came in to the fight on a 3-fight win streak with a 76% KO rate, and was fighting after a gap of 7 months and 11 days.
Masamichi Yabuki stopped Tsuyoshi Sato via KO in the 1st round. Yabuki improves his record to 11-3 (11 KOs)
On November 26, 2017, a 25-year-old Masamichi Yabuki (5-1, 5 KOs) and Masashi Tada met in the ring.
Yabuki came in to the fight on a 2-fight win streak with a 83% KO rate, and was fighting after a gap of 4 months and 10 days.
Masamichi Yabuki stopped Masashi Tada via TKO in the 1st round. Yabuki improves his record to 6-1 (6 KOs)
On June 17, 2018, a 25-year-old Masamichi Yabuki (6-2, 6 KOs) and Gilberto Pedroza met in the ring.
Yabuki came in to the fight on a 1-fight losing streak with a 75% KO rate, and was fighting after a gap of 2 months and 9 days.
Masamichi Yabuki stopped Gilberto Pedroza via KO in the 2nd round. Yabuki improves his record to 7-2 (7 KOs)
On March 26, 2017, a 24-year-old Masamichi Yabuki (3-1, 3 KOs) and Kim Kwang-Min met in the ring.
Yabuki came in to the fight on a 1-fight losing streak with a 75% KO rate, and was fighting after a gap of 3 months and 3 days.
Masamichi Yabuki stopped Kim Kwang-Min via TKO in the 1st round. Yabuki improves his record to 4-1 (4 KOs)
On November 6, 2016, a 24-year-old Masamichi Yabuki (2-0, 2 KOs) and Ryosuke Nasu met in the ring.
Yabuki came in to the fight on a 2-fight win streak with a 100% KO rate, and was fighting after a gap of 2 months and 30 days.
Masamichi Yabuki stopped Ryosuke Nasu via KO in the 1st round. Yabuki improves his record to 3-0 (3 KOs)
On August 7, 2016, a 24-year-old Masamichi Yabuki (1-0, 1 KO) and Kiyoshi Nakamura met in the ring.
Yabuki came in to the fight on a 1-fight win streak with a 100% KO rate, and was fighting after a gap of 4 months and 11 days.
Masamichi Yabuki stopped Kiyoshi Nakamura via TKO in the 1st round. Yabuki improves his record to 2-0 (2 KOs)
On July 16, 2017, a 25-year-old Masamichi Yabuki (4-1, 4 KOs) and Masaki Hirai met in the ring.
Yabuki came in to the fight on a 1-fight win streak with a 80% KO rate, and was fighting after a gap of 3 months and 20 days.
Masamichi Yabuki stopped Masaki Hirai via TKO in the 2nd round. Yabuki improves his record to 5-1 (5 KOs)
On December 15, 2019, a 27-year-old Masamichi Yabuki (9-3, 9 KOs) and Rikito Shiba met in the ring.
Yabuki came in to the fight on a 2-fight win streak with a 75% KO rate, and was fighting after a gap of 7 months and 14 days.
Masamichi Yabuki stopped Rikito Shiba via TKO in the 4th round. Yabuki improves his record to 10-3 (10 KOs)
On December 26, 2020, a 28-year-old Masamichi Yabuki (11-3, 11 KOs) and Toshimasa Ouchi met in the ring in a light-flyweight bout.
Yabuki came in to the fight on a 4-fight win streak with a 78% KO rate, and was fighting after a gap of 5 months.
Masamichi Yabuki defeated Toshimasa Ouchi via unanimous decision in the 10-round light-flyweight fight. Yabuki improves his record to 12-3