| Final | time | ||
| 1. Juan Dyrzka |  Argentina | 50.32s | |
| 2. Willie Atterberry |  United States | 50.49s | |
| 3. Russ Rogers | United States | 51.19s | |
| 4. Victor Maldonado |  Venezuela | 51.80s | |
| 5. Anubes da Silva |  Brazil | 52.13s | |
| 6. Jose Cavero |  Peru | 53.10s |
| Todor66 | |
| Pan America Games 1963 index | |
| Pan America Games Athletics index | |
| World Athletics index | |
| . |
Prepared and maintained by Todor Krastev
todor1966@yahoo.com
Last updated: 1 Nov 2023
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