South Eastasian Games 1977
400 METRES (23/11)HEAT 1
1 Mariah Naidu Malaysia 49.39
2 Mudjiono Indonesia 49.60
3 Supanit Wongsalangkarn Thailand 49.86
4 Ernesto Tabayan Philippines 49.90
HEAT 2
1 Sukninder Singh Malaysia 49.52
2 Santos Magno Philippines 50.20
3 Melly Mofu Indonesia 50.40
4 Suvan Prasanchart Thailand 50.74
5 Abdul Ghani Abu Bakar Brunei 52.94
FINAL (23/11)
1 Sukninder Singh Malaysia 48.22
2 Mudjiono Indonesia 48.67
3 Mariah Naidu Malaysia 49.00
4 Molly Mofu Indonesia 49.49
5 Santos Magno Philippines 50.00
6 Supanit Wongsalangkarn Thailand 50.99
7 Ernesto Tabayan Philippines 52.65
Suvan Prasanchart Thailand