On March 16, 2019, a 32-year-old Ryoichi Taguchi (27-3-2, 12 KOs) got a shot at the flyweight WBO title held by 23-year-old fellow Japanese boxer Kosei Tanaka (12-0, 7 KOs).
Taguchi came in to the fight on a 1-fight losing streak with a 37% KO rate, and was fighting after a gap of 9 months and 24 days. Tanaka was on a 12-fight win streak with a 58% KO rate, and fighting after a layoff of 5 months and 20 days.
Kosei Tanaka defeated Ryoichi Taguchi via unanimous decision and successfully defended his WBO flyweight title. Tanaka improves his record to 13-0, while Taguchi adds a loss to his record at 27-4-2.
On May 20, 2018, the 31-year-old WBA (Unified), IBF, and The Ring light-flyweight world champion, Ryoichi Taguchi (27-2-2, 12 KOs), faced a 30-year-old South African boxer Hekkie Budler (31-3, 10 KOs), in a title defense fight.
Taguchi came in to the fight on a 2-fight win streak with a 38% KO rate, and was fighting after a gap of 4 months and 20 days. Budler was on a -1-fight win streak with a 29% KO rate, and fighting after a layoff of 8 months and 4 days.
Hekkie Budler defeated Ryoichi Taguchi via unanimous decision and wins the WBA (Super), IBF, and The Ring titles. Budler improves his record to 32-3, while Taguchi adds a loss to his record at 27-3-2.
On August 25, 2013, a 26-year-old Ryoichi Taguchi (18-1-1, 8 KOs) and a 20-year-old fellow Japanese boxer Naoya Inoue (3-0, 3 KOs) met in the ring in a light-flyweight bout.
Taguchi came in to the fight on a 2-fight win streak with a 40% KO rate, and was fighting after a gap of 4 months and 22 days. Inoue was on a 3-fight win streak with a 100% KO rate, and fighting after a layoff of 4 months and 9 days.
Naoya Inoue defeated Ryoichi Taguchi via unanimous decision in the 10-round light-flyweight fight. Inoue improves his record to 4-0, while Taguchi adds a loss to his record at 18-2-1.
On August 1, 2009, a 22-year-old Ryoichi Taguchi (9-0, 3 KOs) and Masayoshi Segawa met in the ring.
Taguchi came in to the fight on a 9-fight win streak with a 33% KO rate, and was fighting after a gap of 5 months and 25 days.
Ryoichi Taguchi lost to Masayoshi Segawa via unanimous decision in the 8-round fight, and adds an loss to his record at 9-1.