400 m, Men
| Competition | 2021 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Hanoi
 VIE
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Joshua Atkinson |  THA |
46.44 | ||
| 🥈 | Lê Ngọc Phúc | VIE |
47.27 | ||
| 🥉 | Tan Zong Yang |  SGP |
47.46 |
| Competition | 2021 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Hanoi
VIE
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Joshua Atkinson | THA |
46.44 | ||
| 🥈 | Lê Ngọc Phúc | VIE |
47.27 | ||
| 🥉 | Tan Zong Yang | SGP |
47.46 |