400 m, Men
| Competition | 1971 East Asian Peninsular Games (SEAP Games) |
|---|---|
| Venue |
Kuala Lumpur
 MAS
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Thomboo Krishnan | MAS |
47.8 | ||
| 🥈 | Savin Chem |  CAM |
48.4 | ||
| 🥉 | Sukum Chartprasop |  THA |
48.5 |