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 6, 1984
Date Finished: August 6, 1984
Format: Top four in each heat advanced to the final.
| Gold: | Alonzo Babers |
| Silver: | Gabriel Tiacoh |
| Bronze: | Antonio McKay |
| Rank | Athlete | Age | Team | NOC | T(A) | L | |
|---|---|---|---|---|---|---|---|
| 1 | Innocent Egbunike | 22 | Nigeria | NGR | 45.16 | 3 | QU |
| 2 | Alonzo Babers | 22 | United States | USA | 45.17 | 7 | QU |
| 3 | Darren Clark | 18 | Australia | AUS | 45.26 | 1 | QU |
| 4 | Sunder Nix | 22 | United States | USA | 45.41 | 6 | QU |
| 5 | Aldo Canti | 23 | France | FRA | 45.59 | 8 | |
| 6 | Mike Paul | 27 | Trinidad and Tobago | TTO | 45.60 | 5 | |
| 7 | Kriss Akabusi | 25 | Great Britain | GBR | 45.69 | 2 | |
| 8 | Susumu Takano | 23 | Japan | JPN | 45.88 | 4 |
| Rank | Athlete | Age | Team | NOC | T(A) | L | |
|---|---|---|---|---|---|---|---|
| 1 | Gabriel Tiacoh | 20 | Cote d'Ivoire | CIV | 44.64 | 4 | QU |
| 2 | Sunday Uti | 21 | Nigeria | NGR | 44.83 | 8 | QU |
| 3 | Antonio McKay | 20 | United States | USA | 44.92 | 3 | QU |
| 4 | Bert Cameron | 24 | Jamaica | JAM | 45.10 | 2 | QU |
| 5 | Bruce Frayne | 26 | Australia | AUS | 45.21 | 5 | |
| 6 | Elvis Forde | 24 | Barbados | BAR | 45.32 | 1 | |
| 7 | David Kitur | 21 | Kenya | KEN | 45.62 | 6 | |
| 8 | Davison Lishebo | 29 | Zambia | ZAM | 45.97 | 7 |