Preya Dechdumrong was in the 4×100 m team in the Asian Games 1962, placing fourth. She was also a semi finalist in the 200 m. After her Olympic appearance in 1964, she was able to reach the semi final in 100 m at the Asian Games 1970.
Personal Best: 100 – unknown.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1964 Summer Olympics | Athletics |  THA |
Preya Dechdumrong | |||
| 4 × 100 metres Relay, Women (Olympic) | Thailand | 8 h2 r1/2 |
