400 m, Men
| Competition | 2019 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Capac
 PHI
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Trần Nhật Hoàng |  VIE |
46.56 | ||
| 🥈 | Trần Đình Sơn | VIE |
46.68 | ||
| 🥉 | Phitchaya Sunthonthuam |  THA |
46.98 |