400 m Freestyle, Men
| Competition | 1981 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Manila
 PHI
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | William Wilson | PHI |
4:11.68 | ||
| 🥈 | Soo Tho Kok Mun |  SGP |
4:24.28 | ||
| 🥉 | Vicente Cheng | PHI |
4:24.65 |