Koichi Wajima has six losses against six opponents on his boxing record. For a list of Wajima's best fights, refer to "Best fights of Koichi Wajima".
On June 7, 1977 Koichi Wajima fought Eddie Gazo in a super-welterweight world-title fight for Gazo's WBA and The Ring titles. Wajima was 34 years old and with a record of 31-6-1 (25), and Gazo was 26 years old and with a record of 31-4-2 (17). Wajima lost the fight via 11th-round TKO.
On May 18, 1976 Koichi Wajima met Jose Manuel Duran in a super-welterweight (WBA, The Ring) world-title defense fight. Wajima was 33 years old and with a record of 31-5-1 (25). Wajima lost the fight via 14th-round KO and lost the titles.
On June 7, 1975 Koichi Wajima met Yuh Jae-Doo in a super-welterweight (WBA, WBC, The Ring) world-title defense fight. Wajima was 32 years old and with a record of 30-4-1 (24). Wajima lost the fight via 7th-round KO and lost the titles.
On June 4, 1974 Koichi Wajima, the WBA and WBC champion, met Oscar Albarado, the The Ring champion, in a super-welterweight world-title unification fight. Wajima was 31 years old and with a record of 29-3-1 (24), and Albarado was 25 years old and with a record of 48-6-1 (36). Wajima lost the fight via 15th-round KO and lost his titles.
On February 5, 1970 Koichi Wajima faced off against George Carter in a super-welterweight bout at age 26. He was coming in with a record of 13-2 (12). Wajima lost the fight via 10-round unanimous decision.
On October 30, 1969 Koichi Wajima faced off against Pedro Adigue at age 26. He was coming in with a record of 12-1 (11). Wajima lost the fight via 1st-round KO.
