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Gender: Female
Date of birth: 3 February 1968
| Athletics | ||
| NGR Nigeria | ||
| Rank | Event | Result |
| Seoul 1988 | ||
| competing as Mary Onyali | ||
| 9 (of 60) | 200m | |
| 9 (of 16) | 4x400m Relay | |
| Barcelona 1992 | ||
| 7 (of 55) | 100m | 11.15 (+0.33) |
| 9 (of 53) | 200m | |
| 3 (of 14) | 4x100m Relay | 42.81 (+0.70) |
| Atlanta 1996 | ||
| 7 (of 56) | 100m | 11.13 (+0.19) |
| 3 (of 48) | 200m | 22.38 (+0.26) |
| 5 (of 22) | 4x100m Relay | 42.56 (+0.61) |
| Sydney 2000 | ||
| competing as Mary Onyali-Omagbemi | ||
| 19 (of 84) | 100m | |
| 17 (of 54) | 200m | |
| 7 (of 25) | 4x100m Relay | 44.05 (+2.10) |
| Athina (Athens) 2004 | ||
| 32 (of 43) | 200m | |