4 x 100 m Medley Relay, Men
| Competition | 2021 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Hanoi
 VIE
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Singapore |  SGP |
3:37.69 | ||
| Quah Zheng Wen | — | ||||
| Maximillian Ang | — | ||||
| Joseph Schooling | — | ||||
| Jonathan Tan | — | ||||
| 🥈 | Vietnam | VIE |
3:39.76 | ||
| Lê Nguyễn Paul | — | ||||
| Phạm Thành Bảo | — | ||||
| Hoàng Quý Phước | — | ||||
| Jérémie Lương | — | ||||
| 🥉 | Thailand |  THA |
3:43.67 | ||
| Tonnam Kanteemool | — | ||||
| Dulyawat Kaewsriyong | — | ||||
| Prasobchai Kaewrungrueang | — | ||||
| Navaphat Wongcharoen | — |