400 m, Men
| Competition | 1983 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Singapore
 SGP
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Isidro del Prado |  PHI |
46.40 | ||
| 🥈 | Nordin Mohamed Jadi |  MAS |
47.47 | ||
| 🥉 | Jumpapao Sanuk |  THA |
47.99 |