Athletics at the 1959 Pan American Games – Men's 400 metres
# Athletics at the 1959 Pan American Games – Men's 400 metres

The men's 400 metres event at the 1959 Pan American Games was held at the Soldier Field in Chicago on 31 August and 1 September.

## Medalists

| Gold | Silver | Bronze |
| - | - | - |
| George Kerr British West Indies | Basil Ince British West Indies | Malcolm Spence British West Indies |

## Results

### Heats

Held on 31 August

| Rank | Heat | Name | Nationality | Time | Notes |
| - | - | - | - | - | - |
| 1 | 1 | Eddie Southern | United States | 48.4 | Q |
| 2 | 1 | Emigdio Torres | Cuba | 48.5 | Q |
| 3 | 1 | Ovidio de Jesús | Puerto Rico | 49.1 | Q |
| 4 | 1 | Siegmar Ohlemann | Canada | 49.7 | |
| 5 | 1 | Hugo Krauss | Chile | 50.3 | |
| 6 | 1 | Heber Etcheverry | Uruguay | 51.4 | |
| 7 | 1 | Rafael Arcos | Ecuador | ??.? | |
| 1 | 2 | Dave Mills | United States | 48.0 | Q |
| 2 | 2 | Malcolm Spence | British West Indies | 48.0 | Q |
| 3 | 2 | Anubes da Silva | Brazil | 48.7 | Q |
| 4 | 2 | Gonzalo Gonzáles | Mexico | 50.6 | |
| 5 | 2 | Guillermo Rocca | Venezuela | 50.9 | |
| 6 | 2 | George Shepherd | Canada | 53.0 | |
| | 2 | Anthony Seth | British Guiana | DNS | |
| 1 | 3 | George Kerr | British West Indies | 47.9 | Q |
| 2 | 3 | Jack Yerman | United States | 48.1 | Q |
| 3 | 3 | José Luis Villalongo | Puerto Rico | 49.3 | Q |
| 4 | 3 | Eulogio García | Peru | 49.5 | |
| 5 | 3 | Juan Cruz | Mexico | 49.9 | |
| 6 | 3 | Stan Worsfold | Canada | 50.3 | |
| 7 | 3 | Argemiro Roque | Brazil | ??.? | |
| 1 | 4 | Iván Rodríguez | Puerto Rico | 47.7 | Q |
| 2 | 4 | Basil Ince | British West Indies | 48.4 | Q |
| 3 | 4 | Emilio Romero | Venezuela | 49.3 | Q |
| 4 | 4 | Jorge Terán | Mexico | 50.8 | |
| 5 | 4 | José Carrera | Ecuador | 51.2 | |
| 6 | 4 | Peter Ostermeyer | Brazil | ??.? | |

### Semifinals

Held on 31 August

| Rank | Heat | Name | Nationality | Time | Notes |
| - | - | - | - | - | - |
| 1 | 1 | George Kerr | British West Indies | 47.5 | Q |
| 2 | 1 | Dave Mills | United States | 47.9 | Q |
| 3 | 1 | Jack Yerman | United States | 48.1 | Q |
| 4 | 1 | Emigdio Torres | Cuba | 48.5 | |
| 5 | 1 | Ovidio de Jesús | Puerto Rico | 52.5 | |
| | 1 | José Luis Villalongo | Puerto Rico | DNS | |
| 1 | 2 | Malcolm Spence | British West Indies | 47.2 | Q |
| 2 | 2 | Iván Rodríguez | Puerto Rico | 47.4 | Q |
| 3 | 2 | Basil Ince | British West Indies | 47.5 | Q |
| 4 | 2 | Eddie Southern | United States | 47.6 | |
| 5 | 2 | Anubes da Silva | Brazil | 48.4 | |
| 6 | 2 | Emilio Romero | Venezuela | 49.4 | |

### Final

Held on 1 September

| Rank | Name | Nationality | Time |
| - | - | - | - |
| | George Kerr | British West Indies | 46.1 |
| | Basil Ince | British West Indies | 46.4 |
| | Malcolm Spence | British West Indies | 46.6 |
| 4 | Dave Mills | United States | 46.7 |
| 5 | Iván Rodríguez | Puerto Rico | 47.0 |
| 6 | Jack Yerman | United States | 47.9 |
