Athletics at the 1984 Summer Games: Previous Summer Games ▪ Next Summer Games
Host City: Los Angeles, United States
Venue(s): Los Angeles Memorial Coliseum, Los Angeles, California
Date Started: August 5, 1984
Date Finished: August 5, 1984
Format: Top four in each heat advanced to the final.
| Gold: | Valerie Brisco-Hooks |
| Silver: | Chandra Cheeseborough |
| Bronze: | Kathy Smallwood-Cook |
| Rank | Athlete | Age | Team | NOC | T(A) | L | |
|---|---|---|---|---|---|---|---|
| 1 | Valerie Brisco-Hooks | 24 | United States | USA | 51.14 | 4 | QU |
| 2 | Kathy Smallwood-Cook | 24 | Great Britain | GBR | 51.49 | 6 | QU |
| 3 | Charmaine Crooks | 21 | Canada | CAN | 51.53 | 1 | QU |
| 4 | Ruth Waithera | 25 | Kenya | KEN | 52.21 | 2 | QU |
| 5 | June Griffith | 27 | Guyana | GUY | 52.39 | 5 | |
| 6 | Cathy Rattray-Williams | 20 | Jamaica | JAM | 53.23 | 8 | |
| 7 | Marie Mathieu | 27 | Puerto Rico | PUR | 53.69 | 7 |
| Rank | Athlete | Age | Team | NOC | T(A) | L | |
|---|---|---|---|---|---|---|---|
| 1 | Chandra Cheeseborough | 25 | United States | USA | 50.32 | 5 | QU |
| 2 | Lillie Leatherwood | 20 | United States | USA | 50.83 | 2 | QU |
| 3 | Marita Payne Wiggins | 23 | Canada | CAN | 50.94 | 6 | QU |
| 4 | Ute Thimm | 26 | West Germany | FRG | 51.03 | 8 | QU |
| 5 | Molly Killingbeck | 25 | Canada | CAN | 51.72 | 3 | |
| 6 | Michelle Probert-Scutt | 24 | Great Britain | GBR | 52.07 | 4 | |
| 7 | Ilrey Oliver | 21 | Jamaica | JAM | 52.14 | 1 | |
| 8 | Helen Barnett-Burkart | 26 | Great Britain | GBR | 52.26 | 7 |