|Type||Competed in Olympic Games|
Ousmane Diallo had the following finishes at major championships – 1987 World Championship: 52.0 kg. Freestyle (17th); 1992 African Championship: 57.0 kg. Greco-Roman (4th); 1996 African Championship: 57.0 kg. Greco-Roman (4th); 1991 All-African Games: 57.0 kg. Freestyle (5th); 1991 All-African Games: 57.0 kg. Greco-Roman (6th).
|Games||Discipline (Sport) / Event||NOC / Team||Pos||Medal||As|
|1988 Summer Olympics||Wrestling||GUI||Ousmane Diallo|
|Flyweight, Freestyle, Men (Olympic)||AC|
|1988 Summer Olympics||Flagbearer at the Opening Ceremony||GUI||Ousmane Diallo|