400 m Freestyle, Men
| Competition | 2021 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Hanoi
 VIE
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Nguyễn Huy Hoàng | VIE |
3:48.06 | ||
| 🥈 | Khiew Hoe Yean |  MAS |
3:52.03 | ||
| 🥉 | Glen Lim |  SGP |
3:56.68 |