Duk-koo Kim has two losses against two opponents on his boxing record. For a list of Kim's best fights, refer to "Best fights of Duk-koo Kim".
On November 13, 1982 Duk-koo Kim fought Ray Mancini in a lightweight world-title fight for Mancini's WBA title. Kim was 27 years old and with a record of 17-2-1 (8), and Mancini was 21 years old and with a record of 24-1 (19). Kim lost the fight via 14th-round KO.
On December 9, 1978 Duk-koo Kim faced off against Jong Sil Lee at age 23. He was coming in with a record of 2-1 (0). Kim lost the fight via 4-round points decision.
