On October 13, 2012, a 36-year-old Toshiaki Nishioka (39-4-3, 24 KOs) got a shot at the super-bantamweight WBO title held by 29-year-old Filipino boxer Nonito Donaire (29-1, 18 KOs).
Nishioka came in to the fight on a 16-fight win streak with a 52% KO rate, and was fighting after a gap of 1 year and 12 days. Donaire was on a 28-fight win streak with a 60% KO rate, and fighting after a layoff of 3 months and 6 days.
Nonito Donaire stopped Toshiaki Nishioka via TKO in the 9th round of the 12-round world-title fight, and successfully defended his WBO super-bantamweight title. Donaire improves his record to 30-1 (19 KOs), while Nishioka adds a loss to his record at 39-5-3.
On March 6, 2004, Toshiaki Nishioka and Veeraphol Sahaprom met again in an immediate rematch.
Nishioka came in to the fight after a draw in his last fight with a 48% KO rate, and was fighting after a gap of 5 months and 2 days. Sahaprom was on a 0-fight win streak with a 62% KO rate, and fighting after a layoff of 5 months and 2 days.
Veerapol Sahaprom defeated Toshiaki Nishioka via unanimous decision in the rematch and successfully defended his WBC bantamweight title. Sahaprom improves his record to 41-1-2, while Nishioka adds a loss to his record at 23-4-3.
On June 25, 2000, a 23-year-old Toshiaki Nishioka (20-2-1, 12 KOs) got a shot at the bantamweight WBC title held by 31-year-old Thai boxer Veeraphol Sahaprom (26-1, 19 KOs).
Nishioka came in to the fight on a 9-fight win streak with a 52% KO rate, and was fighting after a gap of 3 months and 13 days. Sahaprom was on a 22-fight win streak with a 70% KO rate, and fighting after a layoff of 3 months and 14 days.
Veerapol Sahaprom defeated Toshiaki Nishioka via unanimous decision and successfully defended his WBC bantamweight title. Sahaprom improves his record to 27-1, while Nishioka adds a loss to his record at 20-3-1.
On December 16, 1995, a 19-year-old Toshiaki Nishioka (6-1, 3 KOs) and Momotarō Kitajima met in the ring.
Nishioka came in to the fight on a 5-fight win streak with a 42% KO rate, and was fighting after a gap of 1 month and 17 days.
Toshiaki Nishioka lost to Momotarō Kitajima via majority decision in the 6-round fight, and adds an loss to his record at 6-2.
On February 4, 1995, an 18-year-old Toshiaki Nishioka (1-0, 1 KO) and Masahiko Nakamura met in the ring.
Nishioka came in to the fight on a 1-fight win streak with a 100% KO rate, and was fighting after a gap of 1 month and 24 days.
Toshiaki Nishioka lost to Masahiko Nakamura via KO in the 4th round, and adds an loss to his record at 1-1.