400 m, Men
| Competition | 1970 Asian Games |
|---|---|
| Venue |
Bangkok
 THA
|
| Held | 11 – 12 December 1970 |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Yoshiharu Tomonaga |  JPN |
46.6 | ||
| 🥈 | Wickramesinghe Wimaladasa |  SRI |
46.7 | ||
| 🥉 | Sucha Singh |  IND |
47.2 |