400 m Individual Medley, Men
| Competition | 2025 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Bangkok, Chonburi
 THA
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Nguyễn Quang Thuấn |  VIE |
4:19.98 | ||
| 🥈 | Nguyễn Thành Tùng | VIE |
4:25.45 | ||
| 🥉 | Tan Khai Xin |  MAS |
4:25.98 |