On June 7, 1977, a 34-year-old Koichi Wajima (31-5-1, 25 KOs) got a shot at the super-welterweight WBA and The Ring title held by 26-year-old Nicaraguan boxer Eddie Gazo (31-4-2, 17 KOs).
Wajima came in to the fight on a 1-fight losing streak with a 67% KO rate, and was fighting after a gap of 1 year and 20 days. Gazo was on a 5-fight win streak with a 45% KO rate, and fighting after a layoff of 3 months and 2 days.
Eddie Gazo stopped Koichi Wajima via TKO in the 11th round of the 15-round world-title fight, and successfully defended his WBA and The Ring super-welterweight titles. Gazo improves his record to 32-4-2 (18 KOs), while Wajima adds a loss to his record at 31-6-1.
On May 18, 1976, the 33-year-old WBA and The Ring super-welterweight world champion, Koichi Wajima (31-4-1, 25 KOs), faced Jose Manuel Duran, in a title defense fight.
Wajima came in to the fight on a 1-fight win streak with a 69% KO rate, and was fighting after a gap of 3 months and 1 day.
Koichi Wajima was defending his super-welterweight WBA and The Ring titles against Jose Manuel Duran and lost via KO in the 14th round, and adds an loss to his record at 31-5-1.
On June 7, 1975, the 32-year-old undisputed super-welterweight world champion, Koichi Wajima (30-3-1, 24 KOs), faced a undefined Yuh Jae-Doo undefined in an undisputed title defense fight.
Wajima came in to the fight on a 1-fight win streak with a 70% KO rate, and was fighting after a gap of 4 months and 17 days.
Koichi Wajima was defending his super-welterweight WBA, WBC, and The Ring titles against Yuh Jae-Doo and lost via KO in the 7th round, and adds an loss to his record at 30-4-1.
On June 4, 1974, the 31-year-old undisputed super-welterweight world champion, Koichi Wajima (29-2-1, 24 KOs), faced a 25-year-old American boxer Oscar Albarado (48-6-1, 36 KOs) in an undisputed title defense fight.
Wajima came in to the fight on a 3-fight win streak with a 75% KO rate, and was fighting after a gap of 3 months and 30 days. Albarado was on a 3-fight win streak with a 65% KO rate, and fighting after a layoff of 1 month and 9 days.
Oscar Albarado stopped the champion via KO in the final round, winning the first world titles of his career, and is crowned the new WBA and WBC super-welterweight champion. Albarado improves his record to 49-6-1 (37 KOs), while Wajima adds a loss to his record at 29-3-1.
On February 5, 1970, a 26-year-old Koichi Wajima (13-1, 12 KOs) and George Carter met in the ring in a super-welterweight bout.
Wajima came in to the fight on a 1-fight win streak with a 85% KO rate, and was fighting after a gap of 1 month and 18 days.
Koichi Wajima lost to George Carter via unanimous decision in the 10-round super-welterweight fight, and adds an loss to his record at 13-2.
On October 30, 1969, a 26-year-old Koichi Wajima (12-0, 11 KOs) and Pedro Adigue met in the ring.
Wajima came in to the fight on a 12-fight win streak with a 91% KO rate, and was fighting after a gap of 1 month and 26 days.
Koichi Wajima lost to Pedro Adigue via KO in the 1st round, and adds an loss to his record at 12-1.