100 m Butterfly, Men
| Competition | 1977 South-East Asian Games (SEA Games) |
|---|---|
| Venue |
Kuala Lumpur
 MAS
|
| Held | 24 November 1977 |
| Status | Medal |
| Competitors | 3 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Gerald Item |  INA |
1:00.71 | ||
| 🥈 | Viret Onkprasert |  THA |
— | ||
| 🥉 | Richard Quek |  SGP |
1:02.35 |